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8142 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Rae Moar
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dd2f0a0a2f |
kunit: fix bug in KUNIT_EXPECT_MEMEQ
In KUNIT_EXPECT_MEMEQ and KUNIT_EXPECT_MEMNEQ, add check if one of the
inputs is NULL and fail if this is the case.
Currently, the kernel crashes if one of the inputs is NULL. Instead,
fail the test and add an appropriate error message.
Fixes:
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Kemeng Shi
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b5fcf7871a |
sbitmap: correct wake_batch recalculation to avoid potential IO hung
Commit |
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Kemeng Shi
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678418c612 |
sbitmap: add sbitmap_find_bit to remove repeat code in __sbitmap_get/__sbitmap_get_shallow
There are three differences between __sbitmap_get and __sbitmap_get_shallow when searching free bit: 1. __sbitmap_get_shallow limit number of bit to search per word. __sbitmap_get has no such limit. 2. __sbitmap_get_shallow always searches with wrap set. __sbitmap_get set wrap according to round_robin. 3. __sbitmap_get_shallow always searches from first bit in first word. __sbitmap_get searches from first bit when round_robin is not set otherwise searches from SB_NR_TO_BIT(sb, alloc_hint). Add helper function sbitmap_find_bit function to do common search while accept "limit depth per word", "wrap flag" and "first bit to search" from caller to support the need of both __sbitmap_get and __sbitmap_get_shallow. Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com> Link: https://lore.kernel.org/r/20230116205059.3821738-5-shikemeng@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Kemeng Shi
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08470a98a7 |
sbitmap: rewrite sbitmap_find_bit_in_index to reduce repeat code
Rewrite sbitmap_find_bit_in_index as following: 1. Rename sbitmap_find_bit_in_index to sbitmap_find_bit_in_word 2. Accept "struct sbitmap_word *" directly instead of accepting "struct sbitmap *" and "int index" to get "struct sbitmap_word *". 3. Accept depth/shallow_depth and wrap for __sbitmap_get_word from caller to support need of both __sbitmap_get_shallow and __sbitmap_get. With helper function sbitmap_find_bit_in_word, we can remove repeat code in __sbitmap_get_shallow to find bit considring deferred clear. Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com> Link: https://lore.kernel.org/r/20230116205059.3821738-4-shikemeng@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Kemeng Shi
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903e86f3a6 |
sbitmap: remove redundant check in __sbitmap_queue_get_batch
Commit |
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Kemeng Shi
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f1591a8bb3 |
sbitmap: remove unnecessary calculation of alloc_hint in __sbitmap_get_shallow
Updates to alloc_hint in the loop in __sbitmap_get_shallow() are mostly pointless and equivalent to setting alloc_hint to zero (because SB_NR_TO_BIT() considers only low sb->shift bits from alloc_hint). So simplify the logic. Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com> Link: https://lore.kernel.org/r/20230116205059.3821738-2-shikemeng@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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Jakub Kicinski
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2d104c390f |
bpf-next-for-netdev
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTFp0I1jqZrAX+hPRXbK58LschIgwUCY9RqJgAKCRDbK58LschI gw2IAP9G5uhFO5abBzYLupp6SY3T5j97MUvPwLfFqUEt7EXmuwEA2lCUEWeW0KtR QX+QmzCa6iHxrW7WzP4DUYLue//FJQY= =yYqA -----END PGP SIGNATURE----- Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Daniel Borkmann says: ==================== bpf-next 2023-01-28 We've added 124 non-merge commits during the last 22 day(s) which contain a total of 124 files changed, 6386 insertions(+), 1827 deletions(-). The main changes are: 1) Implement XDP hints via kfuncs with initial support for RX hash and timestamp metadata kfuncs, from Stanislav Fomichev and Toke Høiland-Jørgensen. Measurements on overhead: https://lore.kernel.org/bpf/875yellcx6.fsf@toke.dk 2) Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case, from Andrii Nakryiko. 3) Significantly reduce the search time for module symbols by livepatch and BPF, from Jiri Olsa and Zhen Lei. 4) Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals, from David Vernet. 5) Fix several issues in the dynptr processing such as stack slot liveness propagation, missing checks for PTR_TO_STACK variable offset, etc, from Kumar Kartikeya Dwivedi. 6) Various performance improvements, fixes, and introduction of more than just one XDP program to XSK selftests, from Magnus Karlsson. 7) Big batch to BPF samples to reduce deprecated functionality, from Daniel T. Lee. 8) Enable struct_ops programs to be sleepable in verifier, from David Vernet. 9) Reduce pr_warn() noise on BTF mismatches when they are expected under the CONFIG_MODULE_ALLOW_BTF_MISMATCH config anyway, from Connor O'Brien. 10) Describe modulo and division by zero behavior of the BPF runtime in BPF's instruction specification document, from Dave Thaler. 11) Several improvements to libbpf API documentation in libbpf.h, from Grant Seltzer. 12) Improve resolve_btfids header dependencies related to subcmd and add proper support for HOSTCC, from Ian Rogers. 13) Add ipip6 and ip6ip decapsulation support for bpf_skb_adjust_room() helper along with BPF selftests, from Ziyang Xuan. 14) Simplify the parsing logic of structure parameters for BPF trampoline in the x86-64 JIT compiler, from Pu Lehui. 15) Get BTF working for kernels with CONFIG_RUST enabled by excluding Rust compilation units with pahole, from Martin Rodriguez Reboredo. 16) Get bpf_setsockopt() working for kTLS on top of TCP sockets, from Kui-Feng Lee. 17) Disable stack protection for BPF objects in bpftool given BPF backends don't support it, from Holger Hoffstätte. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (124 commits) selftest/bpf: Make crashes more debuggable in test_progs libbpf: Add documentation to map pinning API functions libbpf: Fix malformed documentation formatting selftests/bpf: Properly enable hwtstamp in xdp_hw_metadata selftests/bpf: Calls bpf_setsockopt() on a ktls enabled socket. bpf: Check the protocol of a sock to agree the calls to bpf_setsockopt(). bpf/selftests: Verify struct_ops prog sleepable behavior bpf: Pass const struct bpf_prog * to .check_member libbpf: Support sleepable struct_ops.s section bpf: Allow BPF_PROG_TYPE_STRUCT_OPS programs to be sleepable selftests/bpf: Fix vmtest static compilation error tools/resolve_btfids: Alter how HOSTCC is forced tools/resolve_btfids: Install subcmd headers bpf/docs: Document the nocast aliasing behavior of ___init bpf/docs: Document how nested trusted fields may be defined bpf/docs: Document cpumask kfuncs in a new file selftests/bpf: Add selftest suite for cpumask kfuncs selftests/bpf: Add nested trust selftests suite bpf: Enable cpumasks to be queried and used as kptrs bpf: Disallow NULLable pointers for trusted kfuncs ... ==================== Link: https://lore.kernel.org/r/20230128004827.21371-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Linus Torvalds
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28cca23da7 |
hardening fixes for v6.2-rc6
- Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST - Reorganize gcc-plugin includes for GCC 13 - Silence bcache memcpy run-time false positive warnings -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmPUHrIWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJnuoEAClEu/z51wnPPyYKoVAeYbxurqG Wlf7Ti7tMEsNN/kbSRXbJV3wMeY2RvY/+9iHa7zySJ4p9GzhH6pJXpS14CdSONjr c/ESUEVxJqq5C/ICfC7w1l4my7MwZ/IKMyvZOZET8IWlvTSpe8SW4Xvkaloapl08 7GanyWB24wZKL8rqKv2D1vmVeE1SmPEhLncgknPs77jUmnH9AXDgN8bVxKzOZI+V fa5Mjzcg+ovI/i9e25+EX7GCJ6HxrBnPogB1UM46UmFk/TKY/20l0bJTHzqE8gdK iKYpcU+0kihG/JJEg3h95v3qBNJnbBks27t3am+YSbN45Nb4rhovCcEI7NzeHMSG grwYeWN7iAcL8gJuEtwFPieUsioi7iX3KlmL990XxviutDkcgGgmGK02m64fNngb 0LpVue/r0nnYK7WEW1BcZ4Cd8bJfyXoZj0hN/awDkma3vHbsLuYQ6VXCPezOET7u uaDWCkgKrKgjRUJQZEqVs3nrEkrIjhODyH7Aa24EwoioGYuqcsVO5frGeu21vY+A t52S3WKWcuF5Hr8dDrYHMSA6ntWHwaYN1gaxPaObK9KD4aS4uV/SnJZLmTftZMU8 P4fvBKYV8W2SU9Y4ppzaYRpaCVSH04rW1wyFjkCN7HtCBIGc5QFLW9v3F3QLe7lW 1YucSUHg0S1plIKgGQ== =0orM -----END PGP SIGNATURE----- Merge tag 'hardening-v6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening fixes from Kees Cook: - Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST - Reorganize gcc-plugin includes for GCC 13 - Silence bcache memcpy run-time false positive warnings * tag 'hardening-v6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: bcache: Silence memcpy() run-time false positive warnings gcc-plugins: Reorganize gimple includes for GCC 13 kunit: memcpy: Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST |
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Linus Torvalds
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d786f0fe5e |
Tracing updates for 6.2:
- Fix filter memory leak by calling ftrace_free_filter() - Initialize trace_printk() earlier so that ftrace_dump_on_oops shows data on early crashes. - Update the outdated instructions in scripts/tracing/ftrace-bisect.sh - Add lockdep_is_held() to fix lockdep warning - Add allocation failure check in create_hist_field() - Don't initialize pointer that gets set right away in enabled_monitors_write() - Update MAINTAINER entries - Fix help messages in Kconfigs - Fix kernel-doc header for update_preds() -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCY9MaCBQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qqb4AP4p78mTVP/Rw5oLCRUM4E7JGb8hmxuZ HD0RR9fbvyDaQAD/ffkar/KmvGCfCvBNrkGvvx98dwtGIssIB1dShoEZPAU= =lBwh -----END PGP SIGNATURE----- Merge tag 'trace-v6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing fixes from Steven Rostedt: - Fix filter memory leak by calling ftrace_free_filter() - Initialize trace_printk() earlier so that ftrace_dump_on_oops shows data on early crashes. - Update the outdated instructions in scripts/tracing/ftrace-bisect.sh - Add lockdep_is_held() to fix lockdep warning - Add allocation failure check in create_hist_field() - Don't initialize pointer that gets set right away in enabled_monitors_write() - Update MAINTAINER entries - Fix help messages in Kconfigs - Fix kernel-doc header for update_preds() * tag 'trace-v6.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: bootconfig: Update MAINTAINERS file to add tree and mailing list rv: remove redundant initialization of pointer ptr ftrace: Maintain samples/ftrace tracing/filter: fix kernel-doc warnings lib: Kconfig: fix spellos trace_events_hist: add check for return value of 'create_hist_field' tracing/osnoise: Use built-in RCU list checking tracing: Kconfig: Fix spelling/grammar/punctuation ftrace/scripts: Update the instructions for ftrace-bisect.sh tracing: Make sure trace_printk() can output as soon as it can be used ftrace: Export ftrace_free_filter() to modules |
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Andy Shevchenko
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a8c55407a7 |
lib/string: Use strchr() in strpbrk()
Use strchr() instead of open coding it as it's done elsewhere in the same file. Either we will have similar to what it was or possibly better performance in case architecture implements its own strchr(). Memory wise on x86_64 bloat-o-meter shows the following Function old new delta strsep 111 102 -9 Total: Before=2763, After=2754, chg -0.33% Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20230127155135.27153-1-andriy.shevchenko@linux.intel.com |
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Linus Torvalds
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28b4387f0e |
Networking fixes for 6.2-rc6, including fixes from netfilter.
Current release - regressions: - sched: sch_taprio: do not schedule in taprio_reset() Previous releases - regressions: - core: fix UaF in netns ops registration error path - ipv4: prevent potential spectre v1 gadgets - ipv6: fix reachability confirmation with proxy_ndp - netfilter: fix for the set rbtree - eth: fec: use page_pool_put_full_page when freeing rx buffers - eth: iavf: fix temporary deadlock and failure to set MAC address Previous releases - always broken: - netlink: prevent potential spectre v1 gadgets - netfilter: fixes for SCTP connection tracking - mctp: struct sock lifetime fixes - eth: ravb: fix possible hang if RIS2_QFF1 happen - eth: tg3: resolve deadlock in tg3_reset_task() during EEH Misc: - Mat stepped out as MPTCP co-maintainer Signed-off-by: Paolo Abeni <pabeni@redhat.com> -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEEg1AjqC77wbdLX2LbKSR5jcyPE6QFAmPSbsQSHHBhYmVuaUBy ZWRoYXQuY29tAAoJECkkeY3MjxOk1sAP/0uQCY1dZ3Q+PSPurc0+ZyWU+lW4bMjV ok98iYlQqvavfKVVcPDkI7dC/ag7vaiuaveYg1KjOC1sfgO7g/l90vHxXgLkP8qw Oy5ABmPGEAvZwAInl/ACzCvaXgLjOYiti7uRvFQ8ECQJXKoNUDIrt4fXbm/j2TLs +bgVwwr4dUdrsTMZS/P7t3bL6XefBzVp/v2bUnroBTFQgZQ/HEuWreYM55XMnYX0 0GyOUXrkslm4ZZWUrvgLXJDyvonTl5jNI5BnS1XGNtcZZOe9sKkJdLndnEz9FZdT jIDmgtGhRYDqGdeVq2RpNNLxuRGB5JwcciP6k/zDZrckV3IxGzESs6G4E2Sd9CSk Xed2lAEAmdLn2X5N0k3PNT/csadA0BhdD6hI3B4nRZF1XSYPQUZtaA05m4TwEYWS G3LfEeKgEyLycFNsbAGWjg+2r1zSqj2Bu6f9VCeAJjL+APxNwvMqdC1vlrgyiDc4 QLEYFsNX8fY9+tDJPySFamqboC7YrbAkMzZ/w9Hl/s3AmIcXudS7FlpI/uTixMLR MI5yRLB1mBXB4v8v9XN/fuR6PWu0umTFxpR5bbbnjJuksNh5tNhduKCWNOGGVGnm 2WIBTNJO2GLmliL8+swLUWekIZUuVf+upE/vOK+9ENSEn65lXfW2UvMWqFPJyByl Ubl547BAwKBT =ay1Q -----END PGP SIGNATURE----- Merge tag 'net-6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from netfilter. Current release - regressions: - sched: sch_taprio: do not schedule in taprio_reset() Previous releases - regressions: - core: fix UaF in netns ops registration error path - ipv4: prevent potential spectre v1 gadgets - ipv6: fix reachability confirmation with proxy_ndp - netfilter: fix for the set rbtree - eth: fec: use page_pool_put_full_page when freeing rx buffers - eth: iavf: fix temporary deadlock and failure to set MAC address Previous releases - always broken: - netlink: prevent potential spectre v1 gadgets - netfilter: fixes for SCTP connection tracking - mctp: struct sock lifetime fixes - eth: ravb: fix possible hang if RIS2_QFF1 happen - eth: tg3: resolve deadlock in tg3_reset_task() during EEH Misc: - Mat stepped out as MPTCP co-maintainer" * tag 'net-6.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (40 commits) net: mdio-mux-meson-g12a: force internal PHY off on mux switch docs: networking: Fix bridge documentation URL tsnep: Fix TX queue stop/wake for multiple queues net/tg3: resolve deadlock in tg3_reset_task() during EEH net: mctp: mark socks as dead on unhash, prevent re-add net: mctp: hold key reference when looking up a general key net: mctp: move expiry timer delete to unhash net: mctp: add an explicit reference from a mctp_sk_key to sock net: ravb: Fix possible hang if RIS2_QFF1 happen net: ravb: Fix lack of register setting after system resumed for Gen3 net/x25: Fix to not accept on connected socket ice: move devlink port creation/deletion sctp: fail if no bound addresses can be used for a given scope net/sched: sch_taprio: do not schedule in taprio_reset() Revert "Merge branch 'ethtool-mac-merge'" netrom: Fix use-after-free of a listening socket. netfilter: conntrack: unify established states for SCTP paths Revert "netfilter: conntrack: add sctp DATA_SENT state" netfilter: conntrack: fix bug in for_each_sctp_chunk netfilter: conntrack: fix vtag checks for ABORT/SHUTDOWN_COMPLETE ... |
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Randy Dunlap
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c093a74dac |
test_kmod: stop kernel-doc warnings
Use kernel-doc notation to prevent warnings: lib/test_kmod.c:58: warning: contents before sections lib/test_kmod.c:94: warning: cannot understand function prototype: 'struct kmod_test_device_info ' lib/test_kmod.c:119: warning: cannot understand function prototype: 'struct kmod_test_device ' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: linux-modules@vger.kernel.org Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> |
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Kees Cook
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4acf1de35f |
kunit: memcpy: Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST
Since the long memcpy tests may stall a system for tens of seconds in virtualized architecture environments, split those tests off under CONFIG_MEMCPY_SLOW_KUNIT_TEST so they can be separately disabled. Reported-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/lkml/20221226195206.GA2626419@roeck-us.net Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-and-tested-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: David Gow <davidgow@google.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: linux-hardening@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> |
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Randy Dunlap
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ca0f2cfc49 |
lib: Kconfig: fix spellos
Fix spelling in lib/ Kconfig files. (reported by codespell) Link: https://lkml.kernel.org/r/20230124181655.16269-1-rdunlap@infradead.org Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Marco Elver <elver@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: kasan-dev@googlegroups.com Reviewed-by: Marco Elver <elver@google.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> |
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Greg Kroah-Hartman
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f89fd04323 |
Merge 6.2-rc5 into driver-core-next
We need the driver core fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Eric Dumazet
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f0950402e8 |
netlink: prevent potential spectre v1 gadgets
Most netlink attributes are parsed and validated from
__nla_validate_parse() or validate_nla()
u16 type = nla_type(nla);
if (type == 0 || type > maxtype) {
/* error or continue */
}
@type is then used as an array index and can be used
as a Spectre v1 gadget.
array_index_nospec() can be used to prevent leaking
content of kernel memory to malicious users.
This should take care of vast majority of netlink uses,
but an audit is needed to take care of others where
validation is not yet centralized in core netlink functions.
Fixes:
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Linus Torvalds
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8974efaa33 |
v6.2 second rc pull request
- Several hfi1 patches fixing some long standing driver bugs - Overflow when working with sg lists with elements greater than 4G - An rxe regression with object numbering after the mrs reach their limit - A theoretical problem with the scatterlist merging code -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRRRCHOFoQz/8F5bUaFwuHvBreFYQUCY8sBzAAKCRCFwuHvBreF YWMBAP92rk8L3oLrNbYTryNTv8w/LicLhmAvhC42KRy8klvFkAD6A+wskhxmHMgO aSdznob6peMEyNONZUKcijqjnSXhyAY= =brq4 -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma Pull rdma fixes from Jason Gunthorpe: - Several hfi1 patches fixing some long standing driver bugs - Overflow when working with sg lists with elements greater than 4G - An rxe regression with object numbering after the mrs reach their limit - A theoretical problem with the scatterlist merging code * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: lib/scatterlist: Fix to calculate the last_pg properly IB/hfi1: Remove user expected buffer invalidate race IB/hfi1: Immediately remove invalid memory from hardware IB/hfi1: Fix expected receive setup error exit issues IB/hfi1: Reserve user expected TIDs IB/hfi1: Reject a zero-length user expected buffer RDMA/core: Fix ib block iterator counter overflow RDMA/rxe: Prevent faulty rkey generation RDMA/rxe: Fix inaccurate constants in rxe_type_info |
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Arnd Bergmann
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db105c37a4 |
kunit: Export kunit_running()
Using kunit_fail_current_test() in a loadable module causes a link
error like:
ERROR: modpost: "kunit_running" [drivers/gpu/drm/vc4/vc4.ko] undefined!
Export the symbol to allow using it from modules.
Fixes:
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Christophe JAILLET
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f7d85515bd |
test_firmware: Use kstrtobool() instead of strtobool()
strtobool() is the same as kstrtobool(). However, the latter is more used within the kernel. In order to remove strtobool() and slightly simplify kstrtox.h, switch to the other function name. While at it, include the corresponding header file (<linux/kstrtox.h>) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Link: https://lore.kernel.org/r/34f04735d20e0138695dd4070651bd860a36b81c.1673688120.git.christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Randy Dunlap
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1ad5288f2b |
test_firmware: use kernel-doc struct notation
Add "struct" to the kernel-doc notation to prevent a warning: lib/test_firmware.c:98: warning: cannot understand function prototype: 'struct test_config ' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Russ Weight <russell.h.weight@intel.com> Cc: Kees Cook <keescook@chromium.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Link: https://lore.kernel.org/r/20230102211554.25629-1-rdunlap@infradead.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Paul E. McKenney
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344da544f1 |
x86/nmi: Print reasons why backtrace NMIs are ignored
Instrument nmi_trigger_cpumask_backtrace() to dump out diagnostics based on evidence accumulated by exc_nmi(). These diagnostics are dumped for CPUs that ignored an NMI backtrace request for more than 10 seconds. [ paulmck: Apply Ingo Molnar feedback. ] Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: <x86@kernel.org> Reviewed-by: Ingo Molnar <mingo@kernel.org> |
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Paul E. McKenney
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1a3ea611fc |
x86/nmi: Accumulate NMI-progress evidence in exc_nmi()
CPUs ignoring NMIs is often a sign of those CPUs going bad, but there are quite a few other reasons why a CPU might ignore NMIs. Therefore, accumulate evidence within exc_nmi() as to what might be preventing a given CPU from responding to an NMI. [ paulmck: Apply Peter Zijlstra feedback. ] Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: <x86@kernel.org> Reviewed-by: Ingo Molnar <mingo@kernel.org> |
||
Peter Foley
|
b4f34f0b66 |
Documentation: Avoid duplicate Kconfig inclusion
Documentation/Kconfig is already included from top-level, avoid including it again from lib/Kconfig.debug. Signed-off-by: Peter Foley <pefoley2@pefoley.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20230114-doc-v2-1-853a8434ac95@pefoley.com Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
||
Liam Howlett
|
541e06b772 |
maple_tree: remove GFP_ZERO from kmem_cache_alloc() and kmem_cache_alloc_bulk()
Preallocations are common in the VMA code to avoid allocating under certain locking conditions. The preallocations must also cover the worst-case scenario. Removing the GFP_ZERO flag from the kmem_cache_alloc() (and bulk variant) calls will reduce the amount of time spent zeroing memory that may not be used. Only zero out the necessary area to keep track of the allocations in the maple state. Zero the entire node prior to using it in the tree. This required internal changes to node counting on allocation, so the test code is also updated. This restores some micro-benchmark performance: up to +9% in mmtests mmap1 by my testing +10% to +20% in mmap, mmapaddr, mmapmany tests reported by Red Hat Link: https://bugzilla.redhat.com/show_bug.cgi?id=2149636 Link: https://lkml.kernel.org/r/20230105160427.2988454-1-Liam.Howlett@oracle.com Signed-off-by: Liam Howlett <Liam.Howlett@oracle.com> Reported-by: Jirka Hladky <jhladky@redhat.com> Suggested-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Vernon Yang
|
e11cb683b2 |
maple_tree: refine mab_calc_split function
Invert the conditional judgment of the mid_split, to focus the return statement in the last statement, which is easier to understand and for better readability. Link: https://lkml.kernel.org/r/20221221060058.609003-8-vernon2gm@gmail.com Signed-off-by: Vernon Yang <vernon2gm@gmail.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Vernon Yang
|
46b3458482 |
maple_tree: refine ma_state init from mas_start()
If mas->node is an MAS_START, there are three cases, and they all assign different values to mas->node and mas->offset. So there is no need to set them to a default value before updating. Update them directly to make them easier to understand and for better readability. Link: https://lkml.kernel.org/r/20221221060058.609003-7-vernon2gm@gmail.com Signed-off-by: Vernon Yang <vernon2gm@gmail.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Vernon Yang
|
84fd3e1ee3 |
maple_tree: use macro MA_ROOT_PARENT instead of number
When you need to compare whether node->parent is parent of the root node, using macro MA_ROOT_PARENT is easier to understand and for better readability. Link: https://lkml.kernel.org/r/20221221060058.609003-5-vernon2gm@gmail.com Signed-off-by: Vernon Yang <vernon2gm@gmail.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Vernon Yang
|
bd592703b8 |
maple_tree: use mt_node_max() instead of direct operations mt_max[]
Use mt_node_max() to get the maximum number of slots for a node, rather than direct operations mt_max[], makes it better portability. Link: https://lkml.kernel.org/r/20221221060058.609003-4-vernon2gm@gmail.com Signed-off-by: Vernon Yang <vernon2gm@gmail.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Vernon Yang
|
d56c593c8e |
maple_tree: remove extra return statement
For functions with a return type of void, it is unnecessary to add a reurn statement at the end of the function, so drop it. Link: https://lkml.kernel.org/r/20221221060058.609003-3-vernon2gm@gmail.com Signed-off-by: Vernon Yang <vernon2gm@gmail.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Vernon Yang
|
831978e37e |
maple_tree: remove extra space and blank line
Patch series "Clean up and refinement for maple tree", v2. This patchset cleans up and refines some maple tree code. A few small changes make the code easier to understand and for better readability. This patch (of 7): These extra space and blank lines are unnecessary, so drop them. Link: https://lkml.kernel.org/r/20221221060058.609003-1-vernon2gm@gmail.com Link: https://lkml.kernel.org/r/20221221060058.609003-2-vernon2gm@gmail.com Signed-off-by: Vernon Yang <vernon2gm@gmail.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Qinglin Pan
|
6b1ead5985 |
lib/test_vmalloc.c: add parameter use_huge for fix_size_alloc_test
Add a parameter `use_huge' for fix_size_alloc_test(), which can be used to test allocation vie vmalloc_huge for both functionality and performance. Link: https://lkml.kernel.org/r/20221212055657.698420-1-panqinglin2020@iscas.ac.cn Signed-off-by: Qinglin Pan <panqinglin2020@iscas.ac.cn> Cc: "Uladzislau Rezki (Sony)" <urezki@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Andrew Morton
|
bd86d2ea36 |
Sync with v6.2-rc4
Merge branch 'master' into mm-hotfixes-stable |
||
Ingo Molnar
|
188a569658 |
genirq/affinity: Only build SMP-only helper functions on SMP kernels
allnoconfig grew these new build warnings in lib/group_cpus.c:
lib/group_cpus.c:247:12: warning: ‘__group_cpus_evenly’ defined but not used [-Wunused-function]
lib/group_cpus.c:75:13: warning: ‘build_node_to_cpumask’ defined but not used [-Wunused-function]
lib/group_cpus.c:66:13: warning: ‘free_node_to_cpumask’ defined but not used [-Wunused-function]
lib/group_cpus.c:43:23: warning: ‘alloc_node_to_cpumask’ defined but not used [-Wunused-function]
Widen the #ifdef CONFIG_SMP block to not expose unused helpers on
non-SMP builds.
Also annotate the preprocessor branches for better readability.
Fixes:
|
||
Ming Lei
|
f7b3ea8cf7 |
genirq/affinity: Move group_cpus_evenly() into lib/
group_cpus_evenly() has become a generic function which can be used for other subsystems than the interrupt subsystem, so move it into lib/. Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk> Link: https://lore.kernel.org/r/20221227022905.352674-6-ming.lei@redhat.com |
||
Martin Rodriguez Reboredo
|
c1177979af |
btf, scripts: Exclude Rust CUs with pahole
Version 1.24 of pahole has the capability to exclude compilation units (CUs) of specific languages [1] [2]. Rust, as of writing, is not currently supported by pahole and if it's used with a build that has BTF debugging enabled it results in malformed kernel and module binaries [3]. So it's better for pahole to exclude Rust CUs until support for it arrives. Co-developed-by: Eric Curtin <ecurtin@redhat.com> Signed-off-by: Eric Curtin <ecurtin@redhat.com> Signed-off-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Eric Curtin <ecurtin@redhat.com> Reviewed-by: Neal Gompa <neal@gompa.dev> Acked-by: Miguel Ojeda <ojeda@kernel.org> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Link: https://git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?id=49358dfe2aaae4e90b072332c3e324019826783f [1] Link: https://git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?id=8ee363790b7437283c53090a85a9fec2f0b0fbc4 [2] Link: https://github.com/Rust-for-Linux/linux/issues/735 [3] Link: https://lore.kernel.org/bpf/20230111152050.559334-1-yakoyoku@gmail.com |
||
|
Linus Torvalds
|
6e50979a9c |
21 hotfixes. Thirteen of these address pre-6.1 issues and hence have
the cc:stable tag. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY8XcmAAKCRDdBJ7gKXxA jsSsAQC98lXwu4wz+3S7f2Y0u+rwttZ/PlGM3s+37XO50fDtqQEA1XVV3ABWr46M XlwiwCtj7tFiM3zT1nLGS+SmOodvogA= =WrCJ -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2023-01-16-15-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc hotfixes from Andrew Morton: "21 hotfixes. Thirteen of these address pre-6.1 issues and hence have the cc:stable tag" * tag 'mm-hotfixes-stable-2023-01-16-15-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (21 commits) init/Kconfig: fix typo (usafe -> unsafe) nommu: fix split_vma() map_count error nommu: fix do_munmap() error path nommu: fix memory leak in do_mmap() error path MAINTAINERS: update Robert Foss' email address proc: fix PIE proc-empty-vm, proc-pid-vm tests mm: update mmap_sem comments to refer to mmap_lock include/linux/mm: fix release_pages_arg kernel doc comment lib/win_minmax: use /* notation for regular comments kasan: mark kasan_kunit_executing as static nilfs2: fix general protection fault in nilfs_btree_insert() Docs/admin-guide/mm/zswap: remove zsmalloc's lack of writeback warning mm/hugetlb: pre-allocate pgtable pages for uffd wr-protects hugetlb: unshare some PMDs when splitting VMAs mm: fix vma->anon_name memory leak for anonymous shmem VMAs mm/shmem: restore SHMEM_HUGE_DENY precedence over MADV_COLLAPSE mm/MADV_COLLAPSE: don't expand collapse when vm_end is past requested end mm/userfaultfd: enable writenotify while userfaultfd-wp is enabled for a VMA mm/khugepaged: fix collapse_pte_mapped_thp() to allow anon_vma mm/hugetlb: fix uffd-wp handling for migration entries in hugetlb_change_protection() ... |
||
Yishai Hadas
|
0f097f08c9 |
lib/scatterlist: Fix to calculate the last_pg properly
The last_pg is wrong, it is actually the first page of the last
scatterlist element. To get the last page of the last scatterlist element
we have to add prv->length. So it is checking mergability against the
wrong page, Further, a SG element is not guaranteed to end on a page
boundary, so we have to check the sub page location also for merge
eligibility.
Fix the above by checking physical contiguity based on PFNs, compute the
actual last page and then call pages_are_mergable().
Fixes:
|
||
Mateusz Guzik
|
f5fe24ef17 |
lockref: stop doing cpu_relax in the cmpxchg loop
On the x86-64 architecture even a failing cmpxchg grants exclusive
access to the cacheline, making it preferable to retry the failed op
immediately instead of stalling with the pause instruction.
To illustrate the impact, below are benchmark results obtained by
running various will-it-scale tests on top of the 6.2-rc3 kernel and
Cascade Lake (2 sockets * 24 cores * 2 threads) CPU.
All results in ops/s. Note there is some variance in re-runs, but the
code is consistently faster when contention is present.
open3 ("Same file open/close"):
proc stock no-pause
1 805603 814942 (+%1)
2 1054980 1054781 (-0%)
8 1544802 1822858 (+18%)
24 1191064 2199665 (+84%)
48 851582 1469860 (+72%)
96 609481 1427170 (+134%)
fstat2 ("Same file fstat"):
proc stock no-pause
1 3013872 3047636 (+1%)
2 4284687 4400421 (+2%)
8 3257721 5530156 (+69%)
24 2239819 5466127 (+144%)
48 1701072 5256609 (+209%)
96
|
||
Peter Zijlstra
|
f18b0d7ee8 |
ubsan: Fix objtool UACCESS warns
clang-14 allyesconfig gives: vmlinux.o: warning: objtool: emulator_cmpxchg_emulated+0x705: call to __ubsan_handle_load_invalid_value() with UACCESS enabled vmlinux.o: warning: objtool: paging64_update_accessed_dirty_bits+0x39e: call to __ubsan_handle_load_invalid_value() with UACCESS enabled vmlinux.o: warning: objtool: paging32_update_accessed_dirty_bits+0x390: call to __ubsan_handle_load_invalid_value() with UACCESS enabled vmlinux.o: warning: objtool: ept_update_accessed_dirty_bits+0x43f: call to __ubsan_handle_load_invalid_value() with UACCESS enabled Add the required eflags save/restore and whitelist the thing. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Tested-by: Tony Lindgren <tony@atomide.com> Tested-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Frederic Weisbecker <frederic@kernel.org> Link: https://lore.kernel.org/r/20230112195541.906007455@infradead.org |
||
|
Randy Dunlap
|
d09dce1fff |
lib/win_minmax: use /* notation for regular comments
Don't use kernel-doc "/**" notation for non-kernel-doc comments. Prevents a kernel-doc warning: lib/win_minmax.c:31: warning: expecting prototype for lib/minmax.c(). Prototype was for minmax_subwin_update() instead Link: https://lkml.kernel.org/r/20230102211614.26343-1-rdunlap@infradead.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Neal Cardwell <ncardwell@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Wang Hai
|
3bb2a01caa |
kobject: Fix slab-out-of-bounds in fill_kobj_path()
In kobject_get_path(), if kobj->name is changed between calls
get_kobj_path_length() and fill_kobj_path() and the length becomes
longer, then fill_kobj_path() will have an out-of-bounds bug.
The actual current problem occurs when the ixgbe probe.
In ixgbe_mii_bus_init(), if the length of netdev->dev.kobj.name
length becomes longer, out-of-bounds will occur.
cpu0 cpu1
ixgbe_probe
register_netdev(netdev)
netdev_register_kobject
device_add
kobject_uevent // Sending ADD events
systemd-udevd // rename netdev
dev_change_name
device_rename
kobject_rename
ixgbe_mii_bus_init |
mdiobus_register |
__mdiobus_register |
device_register |
device_add |
kobject_uevent |
kobject_get_path |
len = get_kobj_path_length // old name |
path = kzalloc(len, gfp_mask); |
kobj->name = name;
/* name length becomes
* longer
*/
fill_kobj_path /* kobj path length is
* longer than path,
* resulting in out of
* bounds when filling path
*/
This is the kasan report:
==================================================================
BUG: KASAN: slab-out-of-bounds in fill_kobj_path+0x50/0xc0
Write of size 7 at addr ff1100090573d1fd by task kworker/28:1/673
Workqueue: events work_for_cpu_fn
Call Trace:
<TASK>
dump_stack_lvl+0x34/0x48
print_address_description.constprop.0+0x86/0x1e7
print_report+0x36/0x4f
kasan_report+0xad/0x130
kasan_check_range+0x35/0x1c0
memcpy+0x39/0x60
fill_kobj_path+0x50/0xc0
kobject_get_path+0x5a/0xc0
kobject_uevent_env+0x140/0x460
device_add+0x5c7/0x910
__mdiobus_register+0x14e/0x490
ixgbe_probe.cold+0x441/0x574 [ixgbe]
local_pci_probe+0x78/0xc0
work_for_cpu_fn+0x26/0x40
process_one_work+0x3b6/0x6a0
worker_thread+0x368/0x520
kthread+0x165/0x1a0
ret_from_fork+0x1f/0x30
This reproducer triggers that bug:
while:
do
rmmod ixgbe
sleep 0.5
modprobe ixgbe
sleep 0.5
When calling fill_kobj_path() to fill path, if the name length of
kobj becomes longer, return failure and retry. This fixes the problem.
Fixes:
|
||
Keith Busch
|
4397a17c1d |
iov_iter: move iter_ubuf check inside restore WARN
io_uring is using iter_ubuf types for single vector requests. We expect state restore may happen for this type now, and it is already handled correctly, so suppress the warning. Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Christoph Hellwig <hch@lst.de> |
||
Jens Axboe
|
2ad9bd8332 |
iov: add import_ubuf()
Like import_single_range(), but for ITER_UBUF. Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> |
||
|
Linus Torvalds
|
4a4dcea083 |
v6.2 first rc pull request
A big data corruption regression due to a change in the scatterlist - Fix compilation warnings on gcc 13 - Oops when using some mlx5 stats - Bad enforcement of atomic responder resources in mlx5 - Do not wrongly combine non-contiguous pages in scatterlist -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRRRCHOFoQz/8F5bUaFwuHvBreFYQUCY7izVgAKCRCFwuHvBreF YfOXAQC08HilnYdRjlVrxswOQIN1KzHQ63xDXM0Rv99XOcSKCgD+LeXkeCeJ0XWW kBtkPnhR194phADv4nWaaSrIc52DtA0= =HxxG -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma Pull rdma fixes from Jason Gunthorpe: "Most noticeable is that Yishai found a big data corruption regression due to a change in the scatterlist: - Do not wrongly combine non-contiguous pages in scatterlist - Fix compilation warnings on gcc 13 - Oops when using some mlx5 stats - Bad enforcement of atomic responder resources in mlx5" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: lib/scatterlist: Fix to merge contiguous pages into the last SG properly RDMA/mlx5: Fix validation of max_rd_atomic caps for DC RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device RDMA/srp: Move large values to a new enum for gcc13 |
||
Herbert Xu
|
7361d1bc30 |
lib/mpi: Fix buffer overrun when SG is too long
The helper mpi_read_raw_from_sgl sets the number of entries in
the SG list according to nbytes. However, if the last entry
in the SG list contains more data than nbytes, then it may overrun
the buffer because it only allocates enough memory for nbytes.
Fixes:
|
||
|
Yishai Hadas
|
e95d50d74b |
lib/scatterlist: Fix to merge contiguous pages into the last SG properly
When sg_alloc_append_table_from_pages() calls to pages_are_mergeable() in
its 'sgt_append->prv' flow to check whether it can merge contiguous pages
into the last SG, it passes the page arguments in the wrong order.
The first parameter should be the next candidate page to be merged to
the last page and not the opposite.
The current code leads to a corrupted SG which resulted in OOPs and
unexpected errors when non-contiguous pages are merged wrongly.
Fix to pass the page parameters in the right order.
Fixes:
|
||
|
Herbert Xu
|
e20d5a22bd |
crypto: lib/blake2s - Split up test function to halve stack usage
Reduce the stack usage further by splitting up the test function. Also squash blocks and unaligned_blocks into one array. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> |
||
YoungJun.park
|
93ef83050e |
kunit: alloc_string_stream_fragment error handling bug fix
When it fails to allocate fragment, it does not free and return error.
And check the pointer inappropriately.
Fixed merge conflicts with
commit
|
||
|
Liam Howlett
|
c5651b31f5 |
test_maple_tree: add test for mas_spanning_rebalance() on insufficient data
Add a test to the maple tree test suite for the spanning rebalance
insufficient node issue does not go undetected again.
Link: https://lkml.kernel.org/r/20221219161922.2708732-3-Liam.Howlett@oracle.com
Fixes:
|
||
|
Liam Howlett
|
0abb964aae |
maple_tree: fix mas_spanning_rebalance() on insufficient data
Mike Rapoport contacted me off-list with a regression in running criu.
Periodic tests fail with an RCU stall during execution. Although rare, it
is possible to hit this with other uses so this patch should be backported
to fix the regression.
This patchset adds the fix and a test case to the maple tree test
suite.
This patch (of 2):
An insufficient node was causing an out-of-bounds access on the node in
mas_leaf_max_gap(). The cause was the faulty detection of the new node
being a root node when overwriting many entries at the end of the tree.
Fix the detection of a new root and ensure there is sufficient data prior
to entering the spanning rebalance loop.
Link: https://lkml.kernel.org/r/20221219161922.2708732-1-Liam.Howlett@oracle.com
Link: https://lkml.kernel.org/r/20221219161922.2708732-2-Liam.Howlett@oracle.com
Fixes:
|
||
|
Linus Torvalds
|
32d528c4b8 |
SPDX/License additions for 6.2-rc1
Here are 2 small updates for LICENSES and some kernel files that add the Copyleft-next license and use it in a SPDX tag as a dual-license for some kernel files. These have been discussed thoroughly in public on the linux-spdx mailing list, and have the needed acks on them, as well as having been in linux-next with no reported issues for quite some time. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCY6F1Qg8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynGWwCfVJ+Z1CVWSFC8KaaGNiFu/gXmgNUAoKy11gWJ 8igpSNEkOiGiaGA+AvN+ =j8iu -----END PGP SIGNATURE----- Merge tag 'spdx-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx Pull SPDX/License additions from Greg KH: "Here are two small updates for LICENSES and some kernel files that add the Copyleft-next license and use it in a SPDX tag as a dual-license for some kernel files. These have been discussed thoroughly in public on the linux-spdx mailing list, and have the needed acks on them, as well as having been in linux-next with no reported issues for quite some time" * tag 'spdx-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: testing: use the copyleft-next-0.3.1 SPDX tag LICENSES: Add the copyleft-next-0.3.1 license |
||
|
Linus Torvalds
|
70b07bec95 |
asm-generic bits for 6.2
There are only three fairly simple patches. The #include change to linux/swab.h addresses a userspace build issue, and the change to the mmio tracing logic helps provide more useful traces. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAmOgtJUACgkQmmx57+YA GNln8Q//dvQ2FRIWBXKh4r6CxtiCx2aktGmnP1YAuaIVuzjGSn/8EQZAoTYN5jKY Io8rFt1/FfOMtu3E32JtGpgfDAP/8sfz3Lao9bzJR/Fjv059qL5QCoI3qbEFTNz9 vzUqiddFZGppn76qsXSA6aItHVDS4Y97XiYRSwSMlpIz+9a84rYxCo04bNR4ut4t PR5+lvlTDfGfmj+SebrCt/IEi/FF9ckEYCLJHfaSPcQcujLDZDKPcT2RbubgwHgB OfE5Rx25xJxR4BU5MFe74sKn5Qi5HOfr1GrsjL3RbMNiYuHgbwLcZkMXvbZukdHz 50Gt8UXMAxvZYKz92kyQLYuiKEtFSrQ8JccgqVUWL/lRLDoUkTg4hz4tmGUZE6KP ElxdgIBem9yrFX0oCaPNkY5d3MRU2i19FvBfKWKC54NbcmBjpHxxSg+WW/P7Jw+N uegj7qcEh7RcQU4w97OW4nS+eZmnXb4O4qXZeFwhXHS/snH7p3iBApyoPlyb+KOs np5MWRNaGFfi8BWWeVTX78U2VW8Ql8nnlRIlk/Wwm8AkVaNFQDnffKPi87paZd9o Kl+a9broMf4v0Oq5JTxqPMzmn9zUV0rHa1VanRBnNKqTOWalmNcsfsg1Ih9PhAAT p3u2CN0cBI7QmrcymJHrCuv0eNJRjsYa5FB4xmhJcJkD2qjsqXI= =05F5 -----END PGP SIGNATURE----- Merge tag 'asm-generic-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic updates from Arnd Bergmann: "There are only three fairly simple patches. The #include change to linux/swab.h addresses a userspace build issue, and the change to the mmio tracing logic helps provide more useful traces" * tag 'asm-generic-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: uapi: Add missing _UAPI prefix to <asm-generic/types.h> include guard asm-generic/io: Add _RET_IP_ to MMIO trace for more accurate debug info include/uapi/linux/swab: Fix potentially missing __always_inline |
||
|
Linus Torvalds
|
6feb57c2fd |
Kbuild updates for v6.2
- Support zstd-compressed debug info
- Allow W=1 builds to detect objects shared among multiple modules
- Add srcrpm-pkg target to generate a source RPM package
- Make the -s option detection work for future GNU Make versions
- Add -Werror to KBUILD_CPPFLAGS when CONFIG_WERROR=y
- Allow W=1 builds to detect -Wundef warnings in any preprocessed files
- Raise the minimum supported version of binutils to 2.25
- Use $(intcmp ...) to compare integers if GNU Make >= 4.4 is used
- Use $(file ...) to read a file if GNU Make >= 4.2 is used
- Print error if GNU Make older than 3.82 is used
- Allow modpost to detect section mismatches with Clang LTO
- Include vmlinuz.efi into kernel tarballs for arm64 CONFIG_EFI_ZBOOT=y
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Merge tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Support zstd-compressed debug info
- Allow W=1 builds to detect objects shared among multiple modules
- Add srcrpm-pkg target to generate a source RPM package
- Make the -s option detection work for future GNU Make versions
- Add -Werror to KBUILD_CPPFLAGS when CONFIG_WERROR=y
- Allow W=1 builds to detect -Wundef warnings in any preprocessed files
- Raise the minimum supported version of binutils to 2.25
- Use $(intcmp ...) to compare integers if GNU Make >= 4.4 is used
- Use $(file ...) to read a file if GNU Make >= 4.2 is used
- Print error if GNU Make older than 3.82 is used
- Allow modpost to detect section mismatches with Clang LTO
- Include vmlinuz.efi into kernel tarballs for arm64 CONFIG_EFI_ZBOOT=y
* tag 'kbuild-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (29 commits)
buildtar: fix tarballs with EFI_ZBOOT enabled
modpost: Include '.text.*' in TEXT_SECTIONS
padata: Mark padata_work_init() as __ref
kbuild: ensure Make >= 3.82 is used
kbuild: refactor the prerequisites of the modpost rule
kbuild: change module.order to list *.o instead of *.ko
kbuild: use .NOTINTERMEDIATE for future GNU Make versions
kconfig: refactor Makefile to reduce process forks
kbuild: add read-file macro
kbuild: do not sort after reading modules.order
kbuild: add test-{ge,gt,le,lt} macros
Documentation: raise minimum supported version of binutils to 2.25
kbuild: add -Wundef to KBUILD_CPPFLAGS for W=1 builds
kbuild: move -Werror from KBUILD_CFLAGS to KBUILD_CPPFLAGS
kbuild: Port silent mode detection to future gnu make.
init/version.c: remove #include <generated/utsrelease.h>
firmware_loader: remove #include <generated/utsrelease.h>
modpost: Mark uuid_le type to be suitable only for MEI
kbuild: add ability to make source rpm buildable using koji
kbuild: warn objects shared among multiple modules
...
|
||
|
Linus Torvalds
|
158738ea75 |
Update to zstd-1.5.2
The major goal of this PR is to update the kernel to upstream zstd v1.5.2 [0]. Specifically to the tag v1.5.2-kernel [1] which includes several cherrypicked fixes for the kernel on top of v1.5.2. Excepting the MAINTAINERS change, all the changes in this PR can be generated by: ``` git clone https://github.com/facebook/zstd cd zstd/contrib/linux-kernel git checkout v1.5.2-kernel LINUX=/path/to/linux/repo make import ``` These changes have been baking in linux-next since 2022/10/24 when I put up my patchset [2]. Notably the first commit is a small refactor of the only zstd commit since the last update [3] to fit the upstream import scheme. Additionally, this PR includes several minor typo fixes, which have all been fixed upstream so they are maintained on the next import. [0] https://github.com/facebook/zstd/releases/tag/v1.5.2 [1] https://github.com/facebook/zstd/tree/v1.5.2-kernel [2] https://lore.kernel.org/lkml/20221024202606.404049-1-nickrterrell@gmail.com/ [3] |
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Linus Torvalds
|
a6e3e6f138 |
Some fault-injection improvements from Wei Yongjun which enable stacktrace
filtering on x86_64. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY56YjgAKCRDdBJ7gKXxA jni0AQCXYCZE1pOVXnB+IA1G1xkM0f1xDS/D63uJVl7Lyurv5QEAvJWX25DsTbLR c0bq3y2PPpHzrcDyPhciVlY/iplHQQM= =tfs8 -----END PGP SIGNATURE----- Merge tag 'mm-nonmm-stable-2022-12-17-20-32' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull fault-injection updates from Andrew Morton: "Some fault-injection improvements from Wei Yongjun which enable stacktrace filtering on x86_64" * tag 'mm-nonmm-stable-2022-12-17-20-32' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: fault-injection: make stacktrace filter works as expected fault-injection: make some stack filter attrs more readable fault-injection: skip stacktrace filtering by default fault-injection: allow stacktrace filter for x86-64 |
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Linus Torvalds
|
1ea9d333ba |
- A few late-breaking minor fixups
- Two minor feature patches which were awkwardly dependent on mm-nonmm. I need to set up a new branch to handle such things. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY56V1wAKCRDdBJ7gKXxA juVQAP9pr5XBx880RJEil6skMCxYJmae8LvYShhvxJi9keot7QEA3wZRlGcllw/3 fiHcsaBlXqtXBWUbtnMezcdP6gb3TQo= =8T1p -----END PGP SIGNATURE----- Merge tag 'mm-stable-2022-12-17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull more mm updates from Andrew Morton: - A few late-breaking minor fixups - Two minor feature patches which were awkwardly dependent on mm-nonmm. I need to set up a new branch to handle such things. * tag 'mm-stable-2022-12-17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: MAINTAINERS: zram: zsmalloc: Add an additional co-maintainer mm/kmemleak: use %pK to display kernel pointers in backtrace mm: use stack_depot for recording kmemleak's backtrace maple_tree: update copyright dates for test code maple_tree: fix mas_find_rev() comment mm/gup_test: free memory allocated via kvcalloc() using kvfree() |
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Linus Torvalds
|
71a7507afb |
Driver Core changes for 6.2-rc1
Here is the set of driver core and kernfs changes for 6.2-rc1. The "big" change in here is the addition of a new macro, container_of_const() that will preserve the "const-ness" of a pointer passed into it. The "problem" of the current container_of() macro is that if you pass in a "const *", out of it can comes a non-const pointer unless you specifically ask for it. For many usages, we want to preserve the "const" attribute by using the same call. For a specific example, this series changes the kobj_to_dev() macro to use it, allowing it to be used no matter what the const value is. This prevents every subsystem from having to declare 2 different individual macros (i.e. kobj_const_to_dev() and kobj_to_dev()) and having the compiler enforce the const value at build time, which having 2 macros would not do either. The driver for all of this have been discussions with the Rust kernel developers as to how to properly mark driver core, and kobject, objects as being "non-mutable". The changes to the kobject and driver core in this pull request are the result of that, as there are lots of paths where kobjects and device pointers are not modified at all, so marking them as "const" allows the compiler to enforce this. So, a nice side affect of the Rust development effort has been already to clean up the driver core code to be more obvious about object rules. All of this has been bike-shedded in quite a lot of detail on lkml with different names and implementations resulting in the tiny version we have in here, much better than my original proposal. Lots of subsystem maintainers have acked the changes as well. Other than this change, included in here are smaller stuff like: - kernfs fixes and updates to handle lock contention better - vmlinux.lds.h fixes and updates - sysfs and debugfs documentation updates - device property updates All of these have been in the linux-next tree for quite a while with no problems, OTHER than some merge issues with other trees that should be obvious when you hit them (block tree deletes a driver that this tree modifies, iommufd tree modifies code that this tree also touches). If there are merge problems with these trees, please let me know. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCY5wz3A8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yks0ACeKYUlVgCsER8eYW+x18szFa2QTXgAn2h/VhZe 1Fp53boFaQkGBjl8mGF8 =v+FB -----END PGP SIGNATURE----- Merge tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the set of driver core and kernfs changes for 6.2-rc1. The "big" change in here is the addition of a new macro, container_of_const() that will preserve the "const-ness" of a pointer passed into it. The "problem" of the current container_of() macro is that if you pass in a "const *", out of it can comes a non-const pointer unless you specifically ask for it. For many usages, we want to preserve the "const" attribute by using the same call. For a specific example, this series changes the kobj_to_dev() macro to use it, allowing it to be used no matter what the const value is. This prevents every subsystem from having to declare 2 different individual macros (i.e. kobj_const_to_dev() and kobj_to_dev()) and having the compiler enforce the const value at build time, which having 2 macros would not do either. The driver for all of this have been discussions with the Rust kernel developers as to how to properly mark driver core, and kobject, objects as being "non-mutable". The changes to the kobject and driver core in this pull request are the result of that, as there are lots of paths where kobjects and device pointers are not modified at all, so marking them as "const" allows the compiler to enforce this. So, a nice side affect of the Rust development effort has been already to clean up the driver core code to be more obvious about object rules. All of this has been bike-shedded in quite a lot of detail on lkml with different names and implementations resulting in the tiny version we have in here, much better than my original proposal. Lots of subsystem maintainers have acked the changes as well. Other than this change, included in here are smaller stuff like: - kernfs fixes and updates to handle lock contention better - vmlinux.lds.h fixes and updates - sysfs and debugfs documentation updates - device property updates All of these have been in the linux-next tree for quite a while with no problems" * tag 'driver-core-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (58 commits) device property: Fix documentation for fwnode_get_next_parent() firmware_loader: fix up to_fw_sysfs() to preserve const usb.h: take advantage of container_of_const() device.h: move kobj_to_dev() to use container_of_const() container_of: add container_of_const() that preserves const-ness of the pointer driver core: fix up missed drivers/s390/char/hmcdrv_dev.c class.devnode() conversion. driver core: fix up missed scsi/cxlflash class.devnode() conversion. driver core: fix up some missing class.devnode() conversions. driver core: make struct class.devnode() take a const * driver core: make struct class.dev_uevent() take a const * cacheinfo: Remove of_node_put() for fw_token device property: Add a blank line in Kconfig of tests device property: Rename goto label to be more precise device property: Move PROPERTY_ENTRY_BOOL() a bit down device property: Get rid of __PROPERTY_ENTRY_ARRAY_EL*SIZE*() kernfs: fix all kernel-doc warnings and multiple typos driver core: pass a const * into of_device_uevent() kobject: kset_uevent_ops: make name() callback take a const * kobject: kset_uevent_ops: make filter() callback take a const * kobject: make kobject_namespace take a const * ... |
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|
Linus Torvalds
|
ba54ff1fb6 |
Char/Misc driver changes for 6.2-rc1
Here is the large set of char/misc and other driver subsystem changes for 6.2-rc1. Nothing earth-shattering in here at all, just a lot of new driver development and minor fixes. Highlights include: - fastrpc driver updates - iio new drivers and updates - habanalabs driver updates for new hardware and features - slimbus driver updates - speakup module parameters added to aid in boot time configuration - i2c probe_new conversions for lots of different drivers - other small driver fixes and additions One semi-interesting change in here is the increase of the number of misc dynamic minors available to 1048448 to handle new huge-cpu systems. All of these have been in linux-next for a while with no reported problems. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCY5wrdw8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ykSDgCdHjUHS62/UnKdB9rLtyAOFxS/6DgAn2X4Unf8 RN8Mn2mUIiBzyu5p+Zc7 =tK3S -----END PGP SIGNATURE----- Merge tag 'char-misc-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the large set of char/misc and other driver subsystem changes for 6.2-rc1. Nothing earth-shattering in here at all, just a lot of new driver development and minor fixes. Highlights include: - fastrpc driver updates - iio new drivers and updates - habanalabs driver updates for new hardware and features - slimbus driver updates - speakup module parameters added to aid in boot time configuration - i2c probe_new conversions for lots of different drivers - other small driver fixes and additions One semi-interesting change in here is the increase of the number of misc dynamic minors available to 1048448 to handle new huge-cpu systems. All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (521 commits) extcon: usbc-tusb320: Convert to i2c's .probe_new() extcon: rt8973: Convert to i2c's .probe_new() extcon: fsa9480: Convert to i2c's .probe_new() extcon: max77843: Replace irqchip mask_invert with unmask_base chardev: fix error handling in cdev_device_add() mcb: mcb-parse: fix error handing in chameleon_parse_gdd() drivers: mcb: fix resource leak in mcb_probe() coresight: etm4x: fix repeated words in comments coresight: cti: Fix null pointer error on CTI init before ETM coresight: trbe: remove cpuhp instance node before remove cpuhp state counter: stm32-lptimer-cnt: fix the check on arr and cmp registers update misc: fastrpc: Add dma_mask to fastrpc_channel_ctx misc: fastrpc: Add mmap request assigning for static PD pool misc: fastrpc: Safekeep mmaps on interrupted invoke misc: fastrpc: Add support for audiopd misc: fastrpc: Rework fastrpc_req_munmap misc: fastrpc: Use fastrpc_map_put in fastrpc_map_create on fail misc: fastrpc: Add fastrpc_remote_heap_alloc misc: fastrpc: Add reserved mem support misc: fastrpc: Rename audio protection domain to root ... |
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Wei Yongjun
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f9eeef5918 |
fault-injection: make stacktrace filter works as expected
stacktrace filter is checked after others, such as fail-nth, interval and probability. This make it doesn't work well as expected. Fix to running stacktrace filter before other filters. It will speed up fault inject testing for driver modules. Link: https://lkml.kernel.org/r/20220817080332.1052710-5-weiyongjun1@huawei.com Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Cc: Akinobu Mita <akinobu.mita@gmail.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Isabella Basso <isabbasso@riseup.net> Cc: Josh Poimboeuf <jpoimboe@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Wei Yongjun
|
0199907474 |
fault-injection: make some stack filter attrs more readable
Attributes of stack filter are show as unsigned decimal, such as 'require-start', 'require-end'. This patch change to show them as unsigned hexadecimal for more readable. Before: $ echo 0xffffffffc0257000 > /sys/kernel/debug/failslab/require-start $ cat /sys/kernel/debug/failslab/require-start 18446744072638263296 After: $ echo 0xffffffffc0257000 > /sys/kernel/debug/failslab/require-start $ cat /sys/kernel/debug/failslab/require-start 0xffffffffc0257000 [wangyufen@huawei.com: use debugfs_create_xul() instead of debugfs_create_xl()] Link: https://lkml.kernel.org/r/1664331299-4976-1-git-send-email-wangyufen@huawei.com Link: https://lkml.kernel.org/r/20220817080332.1052710-4-weiyongjun1@huawei.com Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Wang Yufen <wangyufen@huawei.com> Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Isabella Basso <isabbasso@riseup.net> Cc: Josh Poimboeuf <jpoimboe@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Wei Yongjun
|
4acb9e5139 |
fault-injection: skip stacktrace filtering by default
If FAULT_INJECTION_STACKTRACE_FILTER is enabled, the depth is default to 32. This means fail_stacktrace() will iter each entry's stacktrace, even if filter is not configured. This patch changes to quick return from fail_stacktrace() if stacktrace filter is not set. Link: https://lkml.kernel.org/r/20220817080332.1052710-3-weiyongjun1@huawei.com Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Cc: Akinobu Mita <akinobu.mita@gmail.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Isabella Basso <isabbasso@riseup.net> Cc: Josh Poimboeuf <jpoimboe@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Wei Yongjun
|
a7ebbbb159 |
fault-injection: allow stacktrace filter for x86-64
This patchset allow fault injection to run on x86_64 and makes stacktrace
filter work as expected. With this, we can test a device driver module
with fault injection more easily.
This patch (of 4):
FAULT_INJECTION_STACKTRACE_FILTER option was apparently disallowed on
x86_64 because of problems with the stack unwinder:
commit
|
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Zhaoyang Huang
|
56a61617dd |
mm: use stack_depot for recording kmemleak's backtrace
Using stack_depot to record kmemleak's backtrace which has been implemented on slub for reducing redundant information. [akpm@linux-foundation.org: fix build - remove now-unused __save_stack_trace()] [zhaoyang.huang@unisoc.com: v3] Link: https://lkml.kernel.org/r/1667101354-4669-1-git-send-email-zhaoyang.huang@unisoc.com [akpm@linux-foundation.org: fix v3 layout oddities] [akpm@linux-foundation.org: coding-style cleanups] Link: https://lkml.kernel.org/r/1666864224-27541-1-git-send-email-zhaoyang.huang@unisoc.com Signed-off-by: Zhaoyang Huang <zhaoyang.huang@unisoc.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: ke.wang <ke.wang@unisoc.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Zhaoyang Huang <huangzhaoyang@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Liam Howlett
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d98c86b9f7 |
maple_tree: fix mas_find_rev() comment
mas_find_rev() uses mas_prev_entry(), not mas_next_entry(), correct comment. Link: https://lkml.kernel.org/r/20221025173756.2719616-1-Liam.Howlett@oracle.com Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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Linus Torvalds
|
94a855111e |
- Add the call depth tracking mitigation for Retbleed which has
been long in the making. It is a lighterweight software-only fix for Skylake-based cores where enabling IBRS is a big hammer and causes a significant performance impact. What it basically does is, it aligns all kernel functions to 16 bytes boundary and adds a 16-byte padding before the function, objtool collects all functions' locations and when the mitigation gets applied, it patches a call accounting thunk which is used to track the call depth of the stack at any time. When that call depth reaches a magical, microarchitecture-specific value for the Return Stack Buffer, the code stuffs that RSB and avoids its underflow which could otherwise lead to the Intel variant of Retbleed. This software-only solution brings a lot of the lost performance back, as benchmarks suggest: https://lore.kernel.org/all/20220915111039.092790446@infradead.org/ That page above also contains a lot more detailed explanation of the whole mechanism - Implement a new control flow integrity scheme called FineIBT which is based on the software kCFI implementation and uses hardware IBT support where present to annotate and track indirect branches using a hash to validate them - Other misc fixes and cleanups -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmOZp5EACgkQEsHwGGHe VUrZFxAAvi/+8L0IYSK4mKJvixGbTFjxN/Swo2JVOfs34LqGUT6JaBc+VUMwZxdb VMTFIZ3ttkKEodjhxGI7oGev6V8UfhI37SmO2lYKXpQVjXXnMlv/M+Vw3teE38CN gopi+xtGnT1IeWQ3tc/Tv18pleJ0mh5HKWiW+9KoqgXj0wgF9x4eRYDz1TDCDA/A iaBzs56j8m/FSykZHnrWZ/MvjKNPdGlfJASUCPeTM2dcrXQGJ93+X2hJctzDte0y Nuiw6Y0htfFBE7xoJn+sqm5Okr+McoUM18/CCprbgSKYk18iMYm3ZtAi6FUQZS1A ua4wQCf49loGp15PO61AS5d3OBf5D3q/WihQRbCaJvTVgPp9sWYnWwtcVUuhMllh ZQtBU9REcVJ/22bH09Q9CjBW0VpKpXHveqQdqRDViLJ6v/iI6EFGmD24SW/VxyRd 73k9MBGrL/dOf1SbEzdsnvcSB3LGzp0Om8o/KzJWOomrVKjBCJy16bwTEsCZEJmP i406m92GPXeaN1GhTko7vmF0GnkEdJs1GVCZPluCAxxbhHukyxHnrjlQjI4vC80n Ylc0B3Kvitw7LGJsPqu+/jfNHADC/zhx1qz/30wb5cFmFbN1aRdp3pm8JYUkn+l/ zri2Y6+O89gvE/9/xUhMohzHsWUO7xITiBavewKeTP9GSWybWUs= =cRy1 -----END PGP SIGNATURE----- Merge tag 'x86_core_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 core updates from Borislav Petkov: - Add the call depth tracking mitigation for Retbleed which has been long in the making. It is a lighterweight software-only fix for Skylake-based cores where enabling IBRS is a big hammer and causes a significant performance impact. What it basically does is, it aligns all kernel functions to 16 bytes boundary and adds a 16-byte padding before the function, objtool collects all functions' locations and when the mitigation gets applied, it patches a call accounting thunk which is used to track the call depth of the stack at any time. When that call depth reaches a magical, microarchitecture-specific value for the Return Stack Buffer, the code stuffs that RSB and avoids its underflow which could otherwise lead to the Intel variant of Retbleed. This software-only solution brings a lot of the lost performance back, as benchmarks suggest: https://lore.kernel.org/all/20220915111039.092790446@infradead.org/ That page above also contains a lot more detailed explanation of the whole mechanism - Implement a new control flow integrity scheme called FineIBT which is based on the software kCFI implementation and uses hardware IBT support where present to annotate and track indirect branches using a hash to validate them - Other misc fixes and cleanups * tag 'x86_core_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (80 commits) x86/paravirt: Use common macro for creating simple asm paravirt functions x86/paravirt: Remove clobber bitmask from .parainstructions x86/debug: Include percpu.h in debugreg.h to get DECLARE_PER_CPU() et al x86/cpufeatures: Move X86_FEATURE_CALL_DEPTH from bit 18 to bit 19 of word 11, to leave space for WIP X86_FEATURE_SGX_EDECCSSA bit x86/Kconfig: Enable kernel IBT by default x86,pm: Force out-of-line memcpy() objtool: Fix weak hole vs prefix symbol objtool: Optimize elf_dirty_reloc_sym() x86/cfi: Add boot time hash randomization x86/cfi: Boot time selection of CFI scheme x86/ibt: Implement FineIBT objtool: Add --cfi to generate the .cfi_sites section x86: Add prefix symbols for function padding objtool: Add option to generate prefix symbols objtool: Avoid O(bloody terrible) behaviour -- an ode to libelf objtool: Slice up elf_create_section_symbol() kallsyms: Revert "Take callthunks into account" x86: Unconfuse CONFIG_ and X86_FEATURE_ namespaces x86/retpoline: Fix crash printing warning x86/paravirt: Fix a !PARAVIRT build warning ... |
||
|
Linus Torvalds
|
64e7003c6b |
This update includes the following changes:
API: - Optimise away self-test overhead when they are disabled. - Support symmetric encryption via keyring keys in af_alg. - Flip hwrng default_quality, the default is now maximum entropy. Algorithms: - Add library version of aesgcm. - CFI fixes for assembly code. - Add arm/arm64 accelerated versions of sm3/sm4. Drivers: - Remove assumption on arm64 that kmalloc is DMA-aligned. - Fix selftest failures in rockchip. - Add support for RK3328/RK3399 in rockchip. - Add deflate support in qat. - Merge ux500 into stm32. - Add support for TEE for PCI ID 0x14CA in ccp. - Add mt7986 support in mtk. - Add MaxLinear platform support in inside-secure. - Add NPCM8XX support in npcm. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEn51F/lCuNhUwmDeSxycdCkmxi6cFAmOZhNQACgkQxycdCkmx i6edOQ/+IHYe2Z+fLsMGs0qgTVaEV33O0crTRl/PMkfBJai57grz6x/G9QrkwGHS 084u4RmwhVrE7Z/pxvey48m0lHMw3H/ElLTRl5LV1zE2OtGgr4VV63wtqthu1QS1 KblVnjb52DhFhvF1O1IrK9lxyX0lByOiARFVdyZR6+Rb66Xfq8rqk5t8U8mmTUFz ds9S2Un4HajgtjNEyI78DOX8o4wVST8tltQs0eVii6T9AeXgSgX37ytD7Xtg/zrz /p61KFgKBQkRT7EEGD6xgNrND0vNAp2w98ZTTRXTZI8+Y0aTUcTYya7cXOLBt9bQ rA7z9sNKvmwJijTMV6O9eqRGcYfzc2G4qfMhlQqj/P2pjLnEZXdvFNHTTbclR76h 2UFlZXPDQVQukvnNNnB6bmIvv6DsM+jmGH0pK5BnBJXnD5SOZh1RqjJxw0Kj6QCM VxpKDvfStux2Guh6mz1lJna/S44qKy/sVYkWUawcmE4RF2+GfNayM1GUpEUofndE vz1yZdgLPETSh5QzKrjFkUAnqo/AsAdc5Qxroz9DRz1BCC0GCuIxjUG8ScTWgcth R/reQDczBckCNpPxrWPHHYoVXnAMwEFySfcjZyuCoMO6t6qVUvcjRShCyKwO/JPl 9YREdRmq0swwIB9cFIrEoWrzc3wjjBtsltDFlkKsa9c92LXoW+g= =OpWt -----END PGP SIGNATURE----- Merge tag 'v6.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto updates from Herbert Xu: "API: - Optimise away self-test overhead when they are disabled - Support symmetric encryption via keyring keys in af_alg - Flip hwrng default_quality, the default is now maximum entropy Algorithms: - Add library version of aesgcm - CFI fixes for assembly code - Add arm/arm64 accelerated versions of sm3/sm4 Drivers: - Remove assumption on arm64 that kmalloc is DMA-aligned - Fix selftest failures in rockchip - Add support for RK3328/RK3399 in rockchip - Add deflate support in qat - Merge ux500 into stm32 - Add support for TEE for PCI ID 0x14CA in ccp - Add mt7986 support in mtk - Add MaxLinear platform support in inside-secure - Add NPCM8XX support in npcm" * tag 'v6.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (184 commits) crypto: ux500/cryp - delete driver crypto: stm32/cryp - enable for use with Ux500 crypto: stm32 - enable drivers to be used on Ux500 dt-bindings: crypto: Let STM32 define Ux500 CRYP hwrng: geode - Fix PCI device refcount leak hwrng: amd - Fix PCI device refcount leak crypto: qce - Set DMA alignment explicitly crypto: octeontx2 - Set DMA alignment explicitly crypto: octeontx - Set DMA alignment explicitly crypto: keembay - Set DMA alignment explicitly crypto: safexcel - Set DMA alignment explicitly crypto: hisilicon/hpre - Set DMA alignment explicitly crypto: chelsio - Set DMA alignment explicitly crypto: ccree - Set DMA alignment explicitly crypto: ccp - Set DMA alignment explicitly crypto: cavium - Set DMA alignment explicitly crypto: img-hash - Fix variable dereferenced before check 'hdev->req' crypto: arm64/ghash-ce - use frame_push/pop macros consistently crypto: arm64/crct10dif - use frame_push/pop macros consistently crypto: arm64/aes-modes - use frame_push/pop macros consistently ... |
||
|
Linus Torvalds
|
48ea09cdda |
hardening updates for v6.2-rc1
- Convert flexible array members, fix -Wstringop-overflow warnings,
and fix KCFI function type mismatches that went ignored by
maintainers (Gustavo A. R. Silva, Nathan Chancellor, Kees Cook).
- Remove the remaining side-effect users of ksize() by converting
dma-buf, btrfs, and coredump to using kmalloc_size_roundup(),
add more __alloc_size attributes, and introduce full testing
of all allocator functions. Finally remove the ksize() side-effect
so that each allocation-aware checker can finally behave without
exceptions.
- Introduce oops_limit (default 10,000) and warn_limit (default off)
to provide greater granularity of control for panic_on_oops and
panic_on_warn (Jann Horn, Kees Cook).
- Introduce overflows_type() and castable_to_type() helpers for
cleaner overflow checking.
- Improve code generation for strscpy() and update str*() kern-doc.
- Convert strscpy and sigphash tests to KUnit, and expand memcpy
tests.
- Always use a non-NULL argument for prepare_kernel_cred().
- Disable structleak plugin in FORTIFY KUnit test (Anders Roxell).
- Adjust orphan linker section checking to respect CONFIG_WERROR
(Xin Li).
- Make sure siginfo is cleared for forced SIGKILL (haifeng.xu).
- Fix um vs FORTIFY warnings for always-NULL arguments.
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Merge tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull kernel hardening updates from Kees Cook:
- Convert flexible array members, fix -Wstringop-overflow warnings, and
fix KCFI function type mismatches that went ignored by maintainers
(Gustavo A. R. Silva, Nathan Chancellor, Kees Cook)
- Remove the remaining side-effect users of ksize() by converting
dma-buf, btrfs, and coredump to using kmalloc_size_roundup(), add
more __alloc_size attributes, and introduce full testing of all
allocator functions. Finally remove the ksize() side-effect so that
each allocation-aware checker can finally behave without exceptions
- Introduce oops_limit (default 10,000) and warn_limit (default off) to
provide greater granularity of control for panic_on_oops and
panic_on_warn (Jann Horn, Kees Cook)
- Introduce overflows_type() and castable_to_type() helpers for cleaner
overflow checking
- Improve code generation for strscpy() and update str*() kern-doc
- Convert strscpy and sigphash tests to KUnit, and expand memcpy tests
- Always use a non-NULL argument for prepare_kernel_cred()
- Disable structleak plugin in FORTIFY KUnit test (Anders Roxell)
- Adjust orphan linker section checking to respect CONFIG_WERROR (Xin
Li)
- Make sure siginfo is cleared for forced SIGKILL (haifeng.xu)
- Fix um vs FORTIFY warnings for always-NULL arguments
* tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (31 commits)
ksmbd: replace one-element arrays with flexible-array members
hpet: Replace one-element array with flexible-array member
um: virt-pci: Avoid GCC non-NULL warning
signal: Initialize the info in ksignal
lib: fortify_kunit: build without structleak plugin
panic: Expose "warn_count" to sysfs
panic: Introduce warn_limit
panic: Consolidate open-coded panic_on_warn checks
exit: Allow oops_limit to be disabled
exit: Expose "oops_count" to sysfs
exit: Put an upper limit on how often we can oops
panic: Separate sysctl logic from CONFIG_SMP
mm/pgtable: Fix multiple -Wstringop-overflow warnings
mm: Make ksize() a reporting-only function
kunit/fortify: Validate __alloc_size attribute results
drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid()
drm/fsl-dcu: Fix return type of fsl_dcu_drm_connector_mode_valid()
driver core: Add __alloc_size hint to devm allocators
overflow: Introduce overflows_type() and castable_to_type()
coredump: Proactively round up to kmalloc bucket size
...
|
||
|
Linus Torvalds
|
08cdc21579 |
iommufd for 6.2
iommufd is the user API to control the IOMMU subsystem as it relates to managing IO page tables that point at user space memory. It takes over from drivers/vfio/vfio_iommu_type1.c (aka the VFIO container) which is the VFIO specific interface for a similar idea. We see a broad need for extended features, some being highly IOMMU device specific: - Binding iommu_domain's to PASID/SSID - Userspace IO page tables, for ARM, x86 and S390 - Kernel bypassed invalidation of user page tables - Re-use of the KVM page table in the IOMMU - Dirty page tracking in the IOMMU - Runtime Increase/Decrease of IOPTE size - PRI support with faults resolved in userspace Many of these HW features exist to support VM use cases - for instance the combination of PASID, PRI and Userspace IO Page Tables allows an implementation of DMA Shared Virtual Addressing (vSVA) within a guest. Dirty tracking enables VM live migration with SRIOV devices and PASID support allow creating "scalable IOV" devices, among other things. As these features are fundamental to a VM platform they need to be uniformly exposed to all the driver families that do DMA into VMs, which is currently VFIO and VDPA. -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRRRCHOFoQz/8F5bUaFwuHvBreFYQUCY5ct7wAKCRCFwuHvBreF YZZ5AQDciXfcgXLt0UBEmWupNb0f/asT6tk717pdsKm8kAZMNAEAsIyLiKT5HqGl s7fAu+CQ1pr9+9NKGevD+frw8Solsw4= =jJkd -----END PGP SIGNATURE----- Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd Pull iommufd implementation from Jason Gunthorpe: "iommufd is the user API to control the IOMMU subsystem as it relates to managing IO page tables that point at user space memory. It takes over from drivers/vfio/vfio_iommu_type1.c (aka the VFIO container) which is the VFIO specific interface for a similar idea. We see a broad need for extended features, some being highly IOMMU device specific: - Binding iommu_domain's to PASID/SSID - Userspace IO page tables, for ARM, x86 and S390 - Kernel bypassed invalidation of user page tables - Re-use of the KVM page table in the IOMMU - Dirty page tracking in the IOMMU - Runtime Increase/Decrease of IOPTE size - PRI support with faults resolved in userspace Many of these HW features exist to support VM use cases - for instance the combination of PASID, PRI and Userspace IO Page Tables allows an implementation of DMA Shared Virtual Addressing (vSVA) within a guest. Dirty tracking enables VM live migration with SRIOV devices and PASID support allow creating "scalable IOV" devices, among other things. As these features are fundamental to a VM platform they need to be uniformly exposed to all the driver families that do DMA into VMs, which is currently VFIO and VDPA" For more background, see the extended explanations in Jason's pull request: https://lore.kernel.org/lkml/Y5dzTU8dlmXTbzoJ@nvidia.com/ * tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: (62 commits) iommufd: Change the order of MSI setup iommufd: Improve a few unclear bits of code iommufd: Fix comment typos vfio: Move vfio group specific code into group.c vfio: Refactor dma APIs for emulated devices vfio: Wrap vfio group module init/clean code into helpers vfio: Refactor vfio_device open and close vfio: Make vfio_device_open() truly device specific vfio: Swap order of vfio_device_container_register() and open_device() vfio: Set device->group in helper function vfio: Create wrappers for group register/unregister vfio: Move the sanity check of the group to vfio_create_group() vfio: Simplify vfio_create_group() iommufd: Allow iommufd to supply /dev/vfio/vfio vfio: Make vfio_container optionally compiled vfio: Move container related MODULE_ALIAS statements into container.c vfio-iommufd: Support iommufd for emulated VFIO devices vfio-iommufd: Support iommufd for physical VFIO devices vfio-iommufd: Allow iommufd to be used in place of a container fd vfio: Use IOMMU_CAP_ENFORCE_CACHE_COHERENCY for vfio_file_enforced_coherent() ... |
||
|
Linus Torvalds
|
e2ca6ba6ba |
MM patches for 6.2-rc1.
- More userfaultfs work from Peter Xu. - Several convert-to-folios series from Sidhartha Kumar and Huang Ying. - Some filemap cleanups from Vishal Moola. - David Hildenbrand added the ability to selftest anon memory COW handling. - Some cpuset simplifications from Liu Shixin. - Addition of vmalloc tracing support by Uladzislau Rezki. - Some pagecache folioifications and simplifications from Matthew Wilcox. - A pagemap cleanup from Kefeng Wang: we have VM_ACCESS_FLAGS, so use it. - Miguel Ojeda contributed some cleanups for our use of the __no_sanitize_thread__ gcc keyword. This series shold have been in the non-MM tree, my bad. - Naoya Horiguchi improved the interaction between memory poisoning and memory section removal for huge pages. - DAMON cleanups and tuneups from SeongJae Park - Tony Luck fixed the handling of COW faults against poisoned pages. - Peter Xu utilized the PTE marker code for handling swapin errors. - Hugh Dickins reworked compound page mapcount handling, simplifying it and making it more efficient. - Removal of the autonuma savedwrite infrastructure from Nadav Amit and David Hildenbrand. - zram support for multiple compression streams from Sergey Senozhatsky. - David Hildenbrand reworked the GUP code's R/O long-term pinning so that drivers no longer need to use the FOLL_FORCE workaround which didn't work very well anyway. - Mel Gorman altered the page allocator so that local IRQs can remnain enabled during per-cpu page allocations. - Vishal Moola removed the try_to_release_page() wrapper. - Stefan Roesch added some per-BDI sysfs tunables which are used to prevent network block devices from dirtying excessive amounts of pagecache. - David Hildenbrand did some cleanup and repair work on KSM COW breaking. - Nhat Pham and Johannes Weiner have implemented writeback in zswap's zsmalloc backend. - Brian Foster has fixed a longstanding corner-case oddity in file[map]_write_and_wait_range(). - sparse-vmemmap changes for MIPS, LoongArch and NIOS2 from Feiyang Chen. - Shiyang Ruan has done some work on fsdax, to make its reflink mode work better under xfstests. Better, but still not perfect. - Christoph Hellwig has removed the .writepage() method from several filesystems. They only need .writepages(). - Yosry Ahmed wrote a series which fixes the memcg reclaim target beancounting. - David Hildenbrand has fixed some of our MM selftests for 32-bit machines. - Many singleton patches, as usual. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY5j6ZwAKCRDdBJ7gKXxA jkDYAP9qNeVqp9iuHjZNTqzMXkfmJPsw2kmy2P+VdzYVuQRcJgEAgoV9d7oMq4ml CodAgiA51qwzId3GRytIo/tfWZSezgA= =d19R -----END PGP SIGNATURE----- Merge tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - More userfaultfs work from Peter Xu - Several convert-to-folios series from Sidhartha Kumar and Huang Ying - Some filemap cleanups from Vishal Moola - David Hildenbrand added the ability to selftest anon memory COW handling - Some cpuset simplifications from Liu Shixin - Addition of vmalloc tracing support by Uladzislau Rezki - Some pagecache folioifications and simplifications from Matthew Wilcox - A pagemap cleanup from Kefeng Wang: we have VM_ACCESS_FLAGS, so use it - Miguel Ojeda contributed some cleanups for our use of the __no_sanitize_thread__ gcc keyword. This series should have been in the non-MM tree, my bad - Naoya Horiguchi improved the interaction between memory poisoning and memory section removal for huge pages - DAMON cleanups and tuneups from SeongJae Park - Tony Luck fixed the handling of COW faults against poisoned pages - Peter Xu utilized the PTE marker code for handling swapin errors - Hugh Dickins reworked compound page mapcount handling, simplifying it and making it more efficient - Removal of the autonuma savedwrite infrastructure from Nadav Amit and David Hildenbrand - zram support for multiple compression streams from Sergey Senozhatsky - David Hildenbrand reworked the GUP code's R/O long-term pinning so that drivers no longer need to use the FOLL_FORCE workaround which didn't work very well anyway - Mel Gorman altered the page allocator so that local IRQs can remnain enabled during per-cpu page allocations - Vishal Moola removed the try_to_release_page() wrapper - Stefan Roesch added some per-BDI sysfs tunables which are used to prevent network block devices from dirtying excessive amounts of pagecache - David Hildenbrand did some cleanup and repair work on KSM COW breaking - Nhat Pham and Johannes Weiner have implemented writeback in zswap's zsmalloc backend - Brian Foster has fixed a longstanding corner-case oddity in file[map]_write_and_wait_range() - sparse-vmemmap changes for MIPS, LoongArch and NIOS2 from Feiyang Chen - Shiyang Ruan has done some work on fsdax, to make its reflink mode work better under xfstests. Better, but still not perfect - Christoph Hellwig has removed the .writepage() method from several filesystems. They only need .writepages() - Yosry Ahmed wrote a series which fixes the memcg reclaim target beancounting - David Hildenbrand has fixed some of our MM selftests for 32-bit machines - Many singleton patches, as usual * tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (313 commits) mm/hugetlb: set head flag before setting compound_order in __prep_compound_gigantic_folio mm: mmu_gather: allow more than one batch of delayed rmaps mm: fix typo in struct pglist_data code comment kmsan: fix memcpy tests mm: add cond_resched() in swapin_walk_pmd_entry() mm: do not show fs mm pc for VM_LOCKONFAULT pages selftests/vm: ksm_functional_tests: fixes for 32bit selftests/vm: cow: fix compile warning on 32bit selftests/vm: madv_populate: fix missing MADV_POPULATE_(READ|WRITE) definitions mm/gup_test: fix PIN_LONGTERM_TEST_READ with highmem mm,thp,rmap: fix races between updates of subpages_mapcount mm: memcg: fix swapcached stat accounting mm: add nodes= arg to memory.reclaim mm: disable top-tier fallback to reclaim on proactive reclaim selftests: cgroup: make sure reclaim target memcg is unprotected selftests: cgroup: refactor proactive reclaim code to reclaim_until() mm: memcg: fix stale protection of reclaim target memcg mm/mmap: properly unaccount memory on mas_preallocate() failure omfs: remove ->writepage jfs: remove ->writepage ... |
||
Nick Terrell
|
70d822cfb7 | Merge branch 'zstd-next' into zstd-linus | ||
|
Linus Torvalds
|
7e68dd7d07 |
Networking changes for 6.2.
Core
----
- Allow live renaming when an interface is up
- Add retpoline wrappers for tc, improving considerably the
performances of complex queue discipline configurations.
- Add inet drop monitor support.
- A few GRO performance improvements.
- Add infrastructure for atomic dev stats, addressing long standing
data races.
- De-duplicate common code between OVS and conntrack offloading
infrastructure.
- A bunch of UBSAN_BOUNDS/FORTIFY_SOURCE improvements.
- Netfilter: introduce packet parser for tunneled packets
- Replace IPVS timer-based estimators with kthreads to scale up
the workload with the number of available CPUs.
- Add the helper support for connection-tracking OVS offload.
BPF
---
- Support for user defined BPF objects: the use case is to allocate
own objects, build own object hierarchies and use the building
blocks to build own data structures flexibly, for example, linked
lists in BPF.
- Make cgroup local storage available to non-cgroup attached BPF
programs.
- Avoid unnecessary deadlock detection and failures wrt BPF task
storage helpers.
- A relevant bunch of BPF verifier fixes and improvements.
- Veristat tool improvements to support custom filtering, sorting,
and replay of results.
- Add LLVM disassembler as default library for dumping JITed code.
- Lots of new BPF documentation for various BPF maps.
- Add bpf_rcu_read_{,un}lock() support for sleepable programs.
- Add RCU grace period chaining to BPF to wait for the completion
of access from both sleepable and non-sleepable BPF programs.
- Add support storing struct task_struct objects as kptrs in maps.
- Improve helper UAPI by explicitly defining BPF_FUNC_xxx integer
values.
- Add libbpf *_opts API-variants for bpf_*_get_fd_by_id() functions.
Protocols
---------
- TCP: implement Protective Load Balancing across switch links.
- TCP: allow dynamically disabling TCP-MD5 static key, reverting
back to fast[er]-path.
- UDP: Introduce optional per-netns hash lookup table.
- IPv6: simplify and cleanup sockets disposal.
- Netlink: support different type policies for each generic
netlink operation.
- MPTCP: add MSG_FASTOPEN and FastOpen listener side support.
- MPTCP: add netlink notification support for listener sockets
events.
- SCTP: add VRF support, allowing sctp sockets binding to VRF
devices.
- Add bridging MAC Authentication Bypass (MAB) support.
- Extensions for Ethernet VPN bridging implementation to better
support multicast scenarios.
- More work for Wi-Fi 7 support, comprising conversion of all
the existing drivers to internal TX queue usage.
- IPSec: introduce a new offload type (packet offload) allowing
complete header processing and crypto offloading.
- IPSec: extended ack support for more descriptive XFRM error
reporting.
- RXRPC: increase SACK table size and move processing into a
per-local endpoint kernel thread, reducing considerably the
required locking.
- IEEE 802154: synchronous send frame and extended filtering
support, initial support for scanning available 15.4 networks.
- Tun: bump the link speed from 10Mbps to 10Gbps.
- Tun/VirtioNet: implement UDP segmentation offload support.
Driver API
----------
- PHY/SFP: improve power level switching between standard
level 1 and the higher power levels.
- New API for netdev <-> devlink_port linkage.
- PTP: convert existing drivers to new frequency adjustment
implementation.
- DSA: add support for rx offloading.
- Autoload DSA tagging driver when dynamically changing protocol.
- Add new PCP and APPTRUST attributes to Data Center Bridging.
- Add configuration support for 800Gbps link speed.
- Add devlink port function attribute to enable/disable RoCE and
migratable.
- Extend devlink-rate to support strict prioriry and weighted fair
queuing.
- Add devlink support to directly reading from region memory.
- New device tree helper to fetch MAC address from nvmem.
- New big TCP helper to simplify temporary header stripping.
New hardware / drivers
----------------------
- Ethernet:
- Marvel Octeon CNF95N and CN10KB Ethernet Switches.
- Marvel Prestera AC5X Ethernet Switch.
- WangXun 10 Gigabit NIC.
- Motorcomm yt8521 Gigabit Ethernet.
- Microchip ksz9563 Gigabit Ethernet Switch.
- Microsoft Azure Network Adapter.
- Linux Automation 10Base-T1L adapter.
- PHY:
- Aquantia AQR112 and AQR412.
- Motorcomm YT8531S.
- PTP:
- Orolia ART-CARD.
- WiFi:
- MediaTek Wi-Fi 7 (802.11be) devices.
- RealTek rtw8821cu, rtw8822bu, rtw8822cu and rtw8723du USB
devices.
- Bluetooth:
- Broadcom BCM4377/4378/4387 Bluetooth chipsets.
- Realtek RTL8852BE and RTL8723DS.
- Cypress.CYW4373A0 WiFi + Bluetooth combo device.
Drivers
-------
- CAN:
- gs_usb: bus error reporting support.
- kvaser_usb: listen only and bus error reporting support.
- Ethernet NICs:
- Intel (100G):
- extend action skbedit to RX queue mapping.
- implement devlink-rate support.
- support direct read from memory.
- nVidia/Mellanox (mlx5):
- SW steering improvements, increasing rules update rate.
- Support for enhanced events compression.
- extend H/W offload packet manipulation capabilities.
- implement IPSec packet offload mode.
- nVidia/Mellanox (mlx4):
- better big TCP support.
- Netronome Ethernet NICs (nfp):
- IPsec offload support.
- add support for multicast filter.
- Broadcom:
- RSS and PTP support improvements.
- AMD/SolarFlare:
- netlink extened ack improvements.
- add basic flower matches to offload, and related stats.
- Virtual NICs:
- ibmvnic: introduce affinity hint support.
- small / embedded:
- FreeScale fec: add initial XDP support.
- Marvel mv643xx_eth: support MII/GMII/RGMII modes for Kirkwood.
- TI am65-cpsw: add suspend/resume support.
- Mediatek MT7986: add RX wireless wthernet dispatch support.
- Realtek 8169: enable GRO software interrupt coalescing per
default.
- Ethernet high-speed switches:
- Microchip (sparx5):
- add support for Sparx5 TC/flower H/W offload via VCAP.
- Mellanox mlxsw:
- add 802.1X and MAC Authentication Bypass offload support.
- add ip6gre support.
- Embedded Ethernet switches:
- Mediatek (mtk_eth_soc):
- improve PCS implementation, add DSA untag support.
- enable flow offload support.
- Renesas:
- add rswitch R-Car Gen4 gPTP support.
- Microchip (lan966x):
- add full XDP support.
- add TC H/W offload via VCAP.
- enable PTP on bridge interfaces.
- Microchip (ksz8):
- add MTU support for KSZ8 series.
- Qualcomm 802.11ax WiFi (ath11k):
- support configuring channel dwell time during scan.
- MediaTek WiFi (mt76):
- enable Wireless Ethernet Dispatch (WED) offload support.
- add ack signal support.
- enable coredump support.
- remain_on_channel support.
- Intel WiFi (iwlwifi):
- enable Wi-Fi 7 Extremely High Throughput (EHT) PHY capabilities.
- 320 MHz channels support.
- RealTek WiFi (rtw89):
- new dynamic header firmware format support.
- wake-over-WLAN support.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"Core:
- Allow live renaming when an interface is up
- Add retpoline wrappers for tc, improving considerably the
performances of complex queue discipline configurations
- Add inet drop monitor support
- A few GRO performance improvements
- Add infrastructure for atomic dev stats, addressing long standing
data races
- De-duplicate common code between OVS and conntrack offloading
infrastructure
- A bunch of UBSAN_BOUNDS/FORTIFY_SOURCE improvements
- Netfilter: introduce packet parser for tunneled packets
- Replace IPVS timer-based estimators with kthreads to scale up the
workload with the number of available CPUs
- Add the helper support for connection-tracking OVS offload
BPF:
- Support for user defined BPF objects: the use case is to allocate
own objects, build own object hierarchies and use the building
blocks to build own data structures flexibly, for example, linked
lists in BPF
- Make cgroup local storage available to non-cgroup attached BPF
programs
- Avoid unnecessary deadlock detection and failures wrt BPF task
storage helpers
- A relevant bunch of BPF verifier fixes and improvements
- Veristat tool improvements to support custom filtering, sorting,
and replay of results
- Add LLVM disassembler as default library for dumping JITed code
- Lots of new BPF documentation for various BPF maps
- Add bpf_rcu_read_{,un}lock() support for sleepable programs
- Add RCU grace period chaining to BPF to wait for the completion of
access from both sleepable and non-sleepable BPF programs
- Add support storing struct task_struct objects as kptrs in maps
- Improve helper UAPI by explicitly defining BPF_FUNC_xxx integer
values
- Add libbpf *_opts API-variants for bpf_*_get_fd_by_id() functions
Protocols:
- TCP: implement Protective Load Balancing across switch links
- TCP: allow dynamically disabling TCP-MD5 static key, reverting back
to fast[er]-path
- UDP: Introduce optional per-netns hash lookup table
- IPv6: simplify and cleanup sockets disposal
- Netlink: support different type policies for each generic netlink
operation
- MPTCP: add MSG_FASTOPEN and FastOpen listener side support
- MPTCP: add netlink notification support for listener sockets events
- SCTP: add VRF support, allowing sctp sockets binding to VRF devices
- Add bridging MAC Authentication Bypass (MAB) support
- Extensions for Ethernet VPN bridging implementation to better
support multicast scenarios
- More work for Wi-Fi 7 support, comprising conversion of all the
existing drivers to internal TX queue usage
- IPSec: introduce a new offload type (packet offload) allowing
complete header processing and crypto offloading
- IPSec: extended ack support for more descriptive XFRM error
reporting
- RXRPC: increase SACK table size and move processing into a
per-local endpoint kernel thread, reducing considerably the
required locking
- IEEE 802154: synchronous send frame and extended filtering support,
initial support for scanning available 15.4 networks
- Tun: bump the link speed from 10Mbps to 10Gbps
- Tun/VirtioNet: implement UDP segmentation offload support
Driver API:
- PHY/SFP: improve power level switching between standard level 1 and
the higher power levels
- New API for netdev <-> devlink_port linkage
- PTP: convert existing drivers to new frequency adjustment
implementation
- DSA: add support for rx offloading
- Autoload DSA tagging driver when dynamically changing protocol
- Add new PCP and APPTRUST attributes to Data Center Bridging
- Add configuration support for 800Gbps link speed
- Add devlink port function attribute to enable/disable RoCE and
migratable
- Extend devlink-rate to support strict prioriry and weighted fair
queuing
- Add devlink support to directly reading from region memory
- New device tree helper to fetch MAC address from nvmem
- New big TCP helper to simplify temporary header stripping
New hardware / drivers:
- Ethernet:
- Marvel Octeon CNF95N and CN10KB Ethernet Switches
- Marvel Prestera AC5X Ethernet Switch
- WangXun 10 Gigabit NIC
- Motorcomm yt8521 Gigabit Ethernet
- Microchip ksz9563 Gigabit Ethernet Switch
- Microsoft Azure Network Adapter
- Linux Automation 10Base-T1L adapter
- PHY:
- Aquantia AQR112 and AQR412
- Motorcomm YT8531S
- PTP:
- Orolia ART-CARD
- WiFi:
- MediaTek Wi-Fi 7 (802.11be) devices
- RealTek rtw8821cu, rtw8822bu, rtw8822cu and rtw8723du USB
devices
- Bluetooth:
- Broadcom BCM4377/4378/4387 Bluetooth chipsets
- Realtek RTL8852BE and RTL8723DS
- Cypress.CYW4373A0 WiFi + Bluetooth combo device
Drivers:
- CAN:
- gs_usb: bus error reporting support
- kvaser_usb: listen only and bus error reporting support
- Ethernet NICs:
- Intel (100G):
- extend action skbedit to RX queue mapping
- implement devlink-rate support
- support direct read from memory
- nVidia/Mellanox (mlx5):
- SW steering improvements, increasing rules update rate
- Support for enhanced events compression
- extend H/W offload packet manipulation capabilities
- implement IPSec packet offload mode
- nVidia/Mellanox (mlx4):
- better big TCP support
- Netronome Ethernet NICs (nfp):
- IPsec offload support
- add support for multicast filter
- Broadcom:
- RSS and PTP support improvements
- AMD/SolarFlare:
- netlink extened ack improvements
- add basic flower matches to offload, and related stats
- Virtual NICs:
- ibmvnic: introduce affinity hint support
- small / embedded:
- FreeScale fec: add initial XDP support
- Marvel mv643xx_eth: support MII/GMII/RGMII modes for Kirkwood
- TI am65-cpsw: add suspend/resume support
- Mediatek MT7986: add RX wireless wthernet dispatch support
- Realtek 8169: enable GRO software interrupt coalescing per
default
- Ethernet high-speed switches:
- Microchip (sparx5):
- add support for Sparx5 TC/flower H/W offload via VCAP
- Mellanox mlxsw:
- add 802.1X and MAC Authentication Bypass offload support
- add ip6gre support
- Embedded Ethernet switches:
- Mediatek (mtk_eth_soc):
- improve PCS implementation, add DSA untag support
- enable flow offload support
- Renesas:
- add rswitch R-Car Gen4 gPTP support
- Microchip (lan966x):
- add full XDP support
- add TC H/W offload via VCAP
- enable PTP on bridge interfaces
- Microchip (ksz8):
- add MTU support for KSZ8 series
- Qualcomm 802.11ax WiFi (ath11k):
- support configuring channel dwell time during scan
- MediaTek WiFi (mt76):
- enable Wireless Ethernet Dispatch (WED) offload support
- add ack signal support
- enable coredump support
- remain_on_channel support
- Intel WiFi (iwlwifi):
- enable Wi-Fi 7 Extremely High Throughput (EHT) PHY capabilities
- 320 MHz channels support
- RealTek WiFi (rtw89):
- new dynamic header firmware format support
- wake-over-WLAN support"
* tag 'net-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2002 commits)
ipvs: fix type warning in do_div() on 32 bit
net: lan966x: Remove a useless test in lan966x_ptp_add_trap()
net: ipa: add IPA v4.7 support
dt-bindings: net: qcom,ipa: Add SM6350 compatible
bnxt: Use generic HBH removal helper in tx path
IPv6/GRO: generic helper to remove temporary HBH/jumbo header in driver
selftests: forwarding: Add bridge MDB test
selftests: forwarding: Rename bridge_mdb test
bridge: mcast: Support replacement of MDB port group entries
bridge: mcast: Allow user space to specify MDB entry routing protocol
bridge: mcast: Allow user space to add (*, G) with a source list and filter mode
bridge: mcast: Add support for (*, G) with a source list and filter mode
bridge: mcast: Avoid arming group timer when (S, G) corresponds to a source
bridge: mcast: Add a flag for user installed source entries
bridge: mcast: Expose __br_multicast_del_group_src()
bridge: mcast: Expose br_multicast_new_group_src()
bridge: mcast: Add a centralized error path
bridge: mcast: Place netlink policy before validation functions
bridge: mcast: Split (*, G) and (S, G) addition into different functions
bridge: mcast: Do not derive entry type from its filter mode
...
|
||
|
Linus Torvalds
|
8b9ed79c2d |
- Move the 32-bit memmove() asm implementation out-of-line in order to
fix a 32-bit full LTO build failure with clang where it would fail at register allocation. Move it to an asm file and clean it up while at it, similar to what has been already done on 64-bit -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmOYYQMACgkQEsHwGGHe VUqs3xAAvc1nsW0FiR3DWE7+k9jti8OwDMRt51n/zX9wjVrYeJM/6pLNqu+rBnLQ A18dhRMVm2QKcxh06bcth/B1V0zvYUMRaOrucjAMkBQ/XAVsEEt3ZSgklj7rYm1S phG+YhzxJWP9KdmiN29kfBj6kS9QdYYHQyca1KWxTlggWSIwlCvIzQ8k9ip8s/5W 9fxiU/P9KA8a4aEkzeQ+waytylus8Swbl19zjnmfHswCi+l2ekS9PfXDE190ec01 ePSLn2dX1bbPCIIvKD7z6gWR7BOJLpVTv2ftg4XzcozZ7ebBaaQxXczhTvUPOtG0 NOuYTz4hI+AcG5QZU8JgGbDXqS//NLIklwydfXgS1fNiwudmO62Y734mL8MV0aw7 FVy7zTXamHb0D10ES0e9tL5GLSTYs0NZ6/193PNERUEdUWj/Ix9FPbuw53DYs3gh 7BkZPRsrOJYmAtTG5fg44SMyG2MHsfsU7+3Xl0nHUKihgdZi7YdmuhLqXnhczCwe HvQFgUF3d5oRjcApYLJKHP88XnPH7o5ogIRXL1WEiZ0+SgChAzckKdVjjYrd3FLq ppnr7uZQCJaT4YoL+zqcQEQD0ukC4BfhlxmXj1IuSlpqnIXOf+JD0WOF3/twErLm g8PE+PYkm+am6TAFDDU/45/DqpEJ+vCD1SJNfRtDeS4piFV0OzQ= =hby2 -----END PGP SIGNATURE----- Merge tag 'x86_asm_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 asm updates from Borislav Petkov: - Move the 32-bit memmove() asm implementation out-of-line in order to fix a 32-bit full LTO build failure with clang where it would fail at register allocation. Move it to an asm file and clean it up while at it, similar to what has been already done on 64-bit * tag 'x86_asm_for_v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mem: Move memmove to out of line assembler |
||
|
Linus Torvalds
|
c5589c436d |
regulator: Updates for v6.2
Quite a quiet release for regulator, the diffstat is dominated by the
I2C migration to probe_new() and the newly added MT6357 driver. We've
just one framework addition and the rest is all new device support,
fixes and cleanups.
The framework addition is an API for requesting all regulators defined
in DT, this isn't great practice but has reasonable applications when
there is generic code handling devices on buses where the bus
specification doesn't include power. The immediate application is MDIO
but I believe there's others, it's another API that'll need an eye
keeping on it for undesirable usage.
- An API for requesting all regulators defined in DT.
- Conversion of lots of drivers to the I2C probe_new() API.
- Support for Mediatek MT6357, Qualcomm PM8550, PMR735a and
Richtek RT6190.
There's a cross tree merge with the I2C tree in order to use the new
i2c_client_get_device_id() helper in the conversions to probe_new().
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Merge tag 'regulator-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"Quite a quiet release for regulator, the diffstat is dominated by the
I2C migration to probe_new() and the newly added MT6357 driver. We've
just one framework addition and the rest is all new device support,
fixes and cleanups.
The framework addition is an API for requesting all regulators defined
in DT, this isn't great practice but has reasonable applications when
there is generic code handling devices on buses where the bus
specification doesn't include power. The immediate application is MDIO
but I believe there's others, it's another API that'll need an eye
keeping on it for undesirable usage.
Summary:
- An API for requesting all regulators defined in DT
- Conversion of lots of drivers to the I2C probe_new() API
- Support for Mediatek MT6357, Qualcomm PM8550, PMR735a and Richtek
RT6190"
* tag 'regulator-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (56 commits)
regulator: core: Use different devices for resource allocation and DT lookup
dt-bindings: Add missing 'unevaluatedProperties' to regulator nodes
regulator: qcom-labibb: Fix missing of_node_put() in qcom_labibb_regulator_probe()
regulator: add mt6357 regulator
regulator: dt-bindings: Add binding schema for mt6357 regulators
regulator: core: fix resource leak in regulator_register()
regulator: core: fix module refcount leak in set_supply()
regulator: core: fix use_count leakage when handling boot-on
regulator: rk808: Use dev_err_probe
regulator: rk808: reduce 'struct rk808' usage
regulator: Drop obsolete dependencies on COMPILE_TEST
regulator: pv88080-regulator: Convert to i2c's .probe_new()
regulator: pfuze100-regulator: Convert to i2c's .probe_new()
regulator: isl6271a-regulator: Convert to i2c's .probe_new()
regulator: fan53555: Convert to i2c's .probe_new()
regulator: act8865-regulator: Convert to i2c's .probe_new()
regulator: qcom-rpmh: Add support for PM8550 regulators
regulator: dt-bindings: qcom,rpmh: Add compatible for PM8550
regulator: tps65023-regulator: Convert to i2c's .probe_new()
regulator: tps62360-regulator: Convert to i2c's .probe_new()
...
|
||
|
Linus Torvalds
|
ce8a79d560 |
for-6.2/block-2022-12-08
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Merge tag 'for-6.2/block-2022-12-08' of git://git.kernel.dk/linux
Pull block updates from Jens Axboe:
- NVMe pull requests via Christoph:
- Support some passthrough commands without CAP_SYS_ADMIN (Kanchan
Joshi)
- Refactor PCIe probing and reset (Christoph Hellwig)
- Various fabrics authentication fixes and improvements (Sagi
Grimberg)
- Avoid fallback to sequential scan due to transient issues (Uday
Shankar)
- Implement support for the DEAC bit in Write Zeroes (Christoph
Hellwig)
- Allow overriding the IEEE OUI and firmware revision in configfs
for nvmet (Aleksandr Miloserdov)
- Force reconnect when number of queue changes in nvmet (Daniel
Wagner)
- Minor fixes and improvements (Uros Bizjak, Joel Granados, Sagi
Grimberg, Christoph Hellwig, Christophe JAILLET)
- Fix and cleanup nvme-fc req allocation (Chaitanya Kulkarni)
- Use the common tagset helpers in nvme-pci driver (Christoph
Hellwig)
- Cleanup the nvme-pci removal path (Christoph Hellwig)
- Use kstrtobool() instead of strtobool (Christophe JAILLET)
- Allow unprivileged passthrough of Identify Controller (Joel
Granados)
- Support io stats on the mpath device (Sagi Grimberg)
- Minor nvmet cleanup (Sagi Grimberg)
- MD pull requests via Song:
- Code cleanups (Christoph)
- Various fixes
- Floppy pull request from Denis:
- Fix a memory leak in the init error path (Yuan)
- Series fixing some batch wakeup issues with sbitmap (Gabriel)
- Removal of the pktcdvd driver that was deprecated more than 5 years
ago, and subsequent removal of the devnode callback in struct
block_device_operations as no users are now left (Greg)
- Fix for partition read on an exclusively opened bdev (Jan)
- Series of elevator API cleanups (Jinlong, Christoph)
- Series of fixes and cleanups for blk-iocost (Kemeng)
- Series of fixes and cleanups for blk-throttle (Kemeng)
- Series adding concurrent support for sync queues in BFQ (Yu)
- Series bringing drbd a bit closer to the out-of-tree maintained
version (Christian, Joel, Lars, Philipp)
- Misc drbd fixes (Wang)
- blk-wbt fixes and tweaks for enable/disable (Yu)
- Fixes for mq-deadline for zoned devices (Damien)
- Add support for read-only and offline zones for null_blk
(Shin'ichiro)
- Series fixing the delayed holder tracking, as used by DM (Yu,
Christoph)
- Series enabling bio alloc caching for IRQ based IO (Pavel)
- Series enabling userspace peer-to-peer DMA (Logan)
- BFQ waker fixes (Khazhismel)
- Series fixing elevator refcount issues (Christoph, Jinlong)
- Series cleaning up references around queue destruction (Christoph)
- Series doing quiesce by tagset, enabling cleanups in drivers
(Christoph, Chao)
- Series untangling the queue kobject and queue references (Christoph)
- Misc fixes and cleanups (Bart, David, Dawei, Jinlong, Kemeng, Ye,
Yang, Waiman, Shin'ichiro, Randy, Pankaj, Christoph)
* tag 'for-6.2/block-2022-12-08' of git://git.kernel.dk/linux: (247 commits)
blktrace: Fix output non-blktrace event when blk_classic option enabled
block: sed-opal: Don't include <linux/kernel.h>
sed-opal: allow using IOC_OPAL_SAVE for locking too
blk-cgroup: Fix typo in comment
block: remove bio_set_op_attrs
nvmet: don't open-code NVME_NS_ATTR_RO enumeration
nvme-pci: use the tagset alloc/free helpers
nvme: add the Apple shared tag workaround to nvme_alloc_io_tag_set
nvme: only set reserved_tags in nvme_alloc_io_tag_set for fabrics controllers
nvme: consolidate setting the tagset flags
nvme: pass nr_maps explicitly to nvme_alloc_io_tag_set
block: bio_copy_data_iter
nvme-pci: split out a nvme_pci_ctrl_is_dead helper
nvme-pci: return early on ctrl state mismatch in nvme_reset_work
nvme-pci: rename nvme_disable_io_queues
nvme-pci: cleanup nvme_suspend_queue
nvme-pci: remove nvme_pci_disable
nvme-pci: remove nvme_disable_admin_queue
nvme: merge nvme_shutdown_ctrl into nvme_disable_ctrl
nvme: use nvme_wait_ready in nvme_shutdown_ctrl
...
|
||
|
Linus Torvalds
|
75f4d9af8b |
iov_iter work; most of that is about getting rid of
direction misannotations and (hopefully) preventing
more of the same for the future.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull iov_iter updates from Al Viro:
"iov_iter work; most of that is about getting rid of direction
misannotations and (hopefully) preventing more of the same for the
future"
* tag 'pull-iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
use less confusing names for iov_iter direction initializers
iov_iter: saner checks for attempt to copy to/from iterator
[xen] fix "direction" argument of iov_iter_kvec()
[vhost] fix 'direction' argument of iov_iter_{init,bvec}()
[target] fix iov_iter_bvec() "direction" argument
[s390] memcpy_real(): WRITE is "data source", not destination...
[s390] zcore: WRITE is "data source", not destination...
[infiniband] READ is "data destination", not source...
[fsi] WRITE is "data source", not destination...
[s390] copy_oldmem_kernel() - WRITE is "data source", not destination
csum_and_copy_to_iter(): handle ITER_DISCARD
get rid of unlikely() on page_copy_sane() calls
|
||
|
Linus Torvalds
|
8702f2c611 |
Non-MM patches for 6.2-rc1.
- A ptrace API cleanup series from Sergey Shtylyov - Fixes and cleanups for kexec from ye xingchen - nilfs2 updates from Ryusuke Konishi - squashfs feature work from Xiaoming Ni: permit configuration of the filesystem's compression concurrency from the mount command line. - A series from Akinobu Mita which addresses bound checking errors when writing to debugfs files. - A series from Yang Yingliang to address rapido memory leaks - A series from Zheng Yejian to address possible overflow errors in encode_comp_t(). - And a whole shower of singleton patches all over the place. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY5efRgAKCRDdBJ7gKXxA jgvdAP0al6oFDtaSsshIdNhrzcMwfjt6PfVxxHdLmNhF1hX2dwD/SVluS1bPSP7y 0sZp7Ustu3YTb8aFkMl96Y9m9mY1Nwg= =ga5B -----END PGP SIGNATURE----- Merge tag 'mm-nonmm-stable-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: - A ptrace API cleanup series from Sergey Shtylyov - Fixes and cleanups for kexec from ye xingchen - nilfs2 updates from Ryusuke Konishi - squashfs feature work from Xiaoming Ni: permit configuration of the filesystem's compression concurrency from the mount command line - A series from Akinobu Mita which addresses bound checking errors when writing to debugfs files - A series from Yang Yingliang to address rapidio memory leaks - A series from Zheng Yejian to address possible overflow errors in encode_comp_t() - And a whole shower of singleton patches all over the place * tag 'mm-nonmm-stable-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (79 commits) ipc: fix memory leak in init_mqueue_fs() hfsplus: fix bug causing custom uid and gid being unable to be assigned with mount rapidio: devices: fix missing put_device in mport_cdev_open kcov: fix spelling typos in comments hfs: Fix OOB Write in hfs_asc2mac hfs: fix OOB Read in __hfs_brec_find relay: fix type mismatch when allocating memory in relay_create_buf() ocfs2: always read both high and low parts of dinode link count io-mapping: move some code within the include guarded section kernel: kcsan: kcsan_test: build without structleak plugin mailmap: update email for Iskren Chernev eventfd: change int to __u64 in eventfd_signal() ifndef CONFIG_EVENTFD rapidio: fix possible UAF when kfifo_alloc() fails relay: use strscpy() is more robust and safer cpumask: limit visibility of FORCE_NR_CPUS acct: fix potential integer overflow in encode_comp_t() acct: fix accuracy loss for input value of encode_comp_t() linux/init.h: include <linux/build_bug.h> and <linux/stringify.h> rapidio: rio: fix possible name leak in rio_register_mport() rapidio: fix possible name leaks when rio_add_device() fails ... |
||
|
Linus Torvalds
|
a7cacfb068 |
This was a not-too-busy cycle for documentation; highlights include:
- The beginnings of a set of translations into Spanish, headed up by Carlos
Bilbao.
- More Chinese translations.
- A change to the Sphinx "alabaster" theme by default for HTML generation.
Unlike the previous default (Read the Docs), alabaster is shipped with
Sphinx by default, reducing the number of other dependencies that need to
be installed. It also (IMO) produces a cleaner and more readable result.
- The ability to render the documentation into the texinfo format
(something Sphinx could always do, we just never wired it up until now).
Plus the usual collection of typo fixes, build-warning fixes, and minor
updates.
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Merge tag 'docs-6.2' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"This was a not-too-busy cycle for documentation; highlights include:
- The beginnings of a set of translations into Spanish, headed up by
Carlos Bilbao
- More Chinese translations
- A change to the Sphinx "alabaster" theme by default for HTML
generation.
Unlike the previous default (Read the Docs), alabaster is shipped
with Sphinx by default, reducing the number of other dependencies
that need to be installed. It also (IMO) produces a cleaner and
more readable result.
- The ability to render the documentation into the texinfo format
(something Sphinx could always do, we just never wired it up until
now)
Plus the usual collection of typo fixes, build-warning fixes, and
minor updates"
* tag 'docs-6.2' of git://git.lwn.net/linux: (67 commits)
Documentation/features: Use loongarch instead of loong
Documentation/features-refresh.sh: Only sed the beginning "arch" of ARCH_DIR
docs/zh_CN: Fix '.. only::' directive's expression
docs/sp_SP: Add memory-barriers.txt Spanish translation
docs/zh_CN/LoongArch: Update links of LoongArch ISA Vol1 and ELF psABI
docs/LoongArch: Update links of LoongArch ISA Vol1 and ELF psABI
Documentation/features: Update feature lists for 6.1
Documentation: Fixed a typo in bootconfig.rst
docs/sp_SP: Add process coding-style translation
docs/sp_SP: Add kernel-docs.rst Spanish translation
docs: Create translations/sp_SP/process/, move submitting-patches.rst
docs: Add book to process/kernel-docs.rst
docs: Retire old resources from kernel-docs.rst
docs: Update maintainer of kernel-docs.rst
Documentation: riscv: Document the sv57 VM layout
Documentation: USB: correct possessive "its" usage
math64: fix kernel-doc return value warnings
math64: add kernel-doc for DIV64_U64_ROUND_UP
math64: favor kernel-doc from header files
doc: add texinfodocs and infodocs targets
...
|
||
|
Linus Torvalds
|
96f4263568 |
Rust changes for v6.2
The first set of changes after the merge, the major ones being: - String and formatting: new types `CString`, `CStr`, `BStr` and `Formatter`; new macros `c_str!`, `b_str!` and `fmt!`. - Errors: the rest of the error codes from `errno-base.h`, as well as some `From` trait implementations for the `Error` type. - Printing: the rest of the `pr_*!` levels and the continuation one `pr_cont!`, as well as a new sample. - `alloc` crate: new constructors `try_with_capacity()` and `try_with_capacity_in()` for `RawVec` and `Vec`. - Procedural macros: new macros `#[vtable]` and `concat_idents!`, as well as better ergonomics for `module!` users. - Asserting: new macros `static_assert!`, `build_error!` and `build_assert!`, as well as a new crate `build_error` to support them. - Vocabulary types: new types `Opaque` and `Either`. - Debugging: new macro `dbg!`. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPjU5OPd5QIZ9jqqOGXyLc2htIW0FAmOVJTQACgkQGXyLc2ht IW3cLA//dn0/rN2sCJBsX8/mNQqRXQvM45QUP5ESd5w01fRXEpvHZ+MbfdcFZN8K oQEgZwTwTKvKY6V+xCPmEiUvk5jniCzdEjTFtDhVhA+qimxY/FMS3zozuJMQIlz2 zTiZ4aEM1zFAwoDHnnOmaCO+C0zw5d9UFIKO4nIvOSy3gD/eLgiFz3cyTh8Q2+BT lPyqeKg9+xKIl8tWa5zGYHgZASGguV0EpXFn4Ck4eBOH6O9ovWgakdzZp0BMJ9Ca UNIFpFjLMUkCwzZkPqIyI9IZEOzUYWTTfWU9S5JJ6IzC3aT8NPp3WeSYW9TgVnvO z5n6rsYOgvKeWCvGIgq82fgVbGMNaaP1MFxNLsdbWWj+9lfebpk62aQXSuWsvASq /W39/xEhOOLikyb3ObVHLW1r1lu9guSeP8eaMQ5ci/99kypHHBOXmB/nr9pxPkrr kovxuZedDbgEYunbVmwWGmvLg8dcjadfeXf6Dkc6bwDvyhiuX9W21z9ppT9nV5NW chYRAPROCHuBRu+txft9gIjyE1/V7G8CyeWiG36VWN8Tayc5iJEWOopk4GJcEpJi MS5tAJru7fBZcXjFausN3mdXyRwMLdilTZ2Qkp6MqzXi5zwVuKH1wsJ7CLkPBWQC tAPJts6krOonI2cd2JM8ds+Wj5Q1cDGQuF6Rj29/27aUBKH1w2Y= =iIcK -----END PGP SIGNATURE----- Merge tag 'rust-6.2' of https://github.com/Rust-for-Linux/linux Pull rust updates from Miguel Ojeda: "The first set of changes after the merge, the major ones being: - String and formatting: new types 'CString', 'CStr', 'BStr' and 'Formatter'; new macros 'c_str!', 'b_str!' and 'fmt!'. - Errors: the rest of the error codes from 'errno-base.h', as well as some 'From' trait implementations for the 'Error' type. - Printing: the rest of the 'pr_*!' levels and the continuation one 'pr_cont!', as well as a new sample. - 'alloc' crate: new constructors 'try_with_capacity()' and 'try_with_capacity_in()' for 'RawVec' and 'Vec'. - Procedural macros: new macros '#[vtable]' and 'concat_idents!', as well as better ergonomics for 'module!' users. - Asserting: new macros 'static_assert!', 'build_error!' and 'build_assert!', as well as a new crate 'build_error' to support them. - Vocabulary types: new types 'Opaque' and 'Either'. - Debugging: new macro 'dbg!'" * tag 'rust-6.2' of https://github.com/Rust-for-Linux/linux: (28 commits) rust: types: add `Opaque` type rust: types: add `Either` type rust: build_assert: add `build_{error,assert}!` macros rust: add `build_error` crate rust: static_assert: add `static_assert!` macro rust: std_vendor: add `dbg!` macro based on `std`'s one rust: str: add `fmt!` macro rust: str: add `CString` type rust: str: add `Formatter` type rust: str: add `c_str!` macro rust: str: add `CStr` unit tests rust: str: implement several traits for `CStr` rust: str: add `CStr` type rust: str: add `b_str!` macro rust: str: add `BStr` type rust: alloc: add `Vec::try_with_capacity{,_in}()` constructors rust: alloc: add `RawVec::try_with_capacity_in()` constructor rust: prelude: add `error::code::*` constant items rust: error: add `From` implementations for `Error` rust: error: add codes from `errno-base.h` ... |
||
|
Linus Torvalds
|
e2ed78d5d9 |
linux-kselftest-kunit-next-6.2-rc1
This KUnit next update for Linux 6.2-rc1 consists of several enhancements,
fixes, clean-ups, documentation updates, improvements to logging and KTAP
compliance of KUnit test output:
- log numbers in decimal and hex
- parse KTAP compliant test output
- allow conditionally exposing static symbols to tests
when KUNIT is enabled
- make static symbols visible during kunit testing
- clean-ups to remove unused structure definition
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Merge tag 'linux-kselftest-kunit-next-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit updates from Shuah Khan:
"Several enhancements, fixes, clean-ups, documentation updates,
improvements to logging and KTAP compliance of KUnit test output:
- log numbers in decimal and hex
- parse KTAP compliant test output
- allow conditionally exposing static symbols to tests when KUNIT is
enabled
- make static symbols visible during kunit testing
- clean-ups to remove unused structure definition"
* tag 'linux-kselftest-kunit-next-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (29 commits)
Documentation: dev-tools: Clarify requirements for result description
apparmor: test: make static symbols visible during kunit testing
kunit: add macro to allow conditionally exposing static symbols to tests
kunit: tool: make parser preserve whitespace when printing test log
Documentation: kunit: Fix "How Do I Use This" / "Next Steps" sections
kunit: tool: don't include KTAP headers and the like in the test log
kunit: improve KTAP compliance of KUnit test output
kunit: tool: parse KTAP compliant test output
mm: slub: test: Use the kunit_get_current_test() function
kunit: Use the static key when retrieving the current test
kunit: Provide a static key to check if KUnit is actively running tests
kunit: tool: make --json do nothing if --raw_ouput is set
kunit: tool: tweak error message when no KTAP found
kunit: remove KUNIT_INIT_MEM_ASSERTION macro
Documentation: kunit: Remove redundant 'tips.rst' page
Documentation: KUnit: reword description of assertions
Documentation: KUnit: make usage.rst a superset of tips.rst, remove duplication
kunit: eliminate KUNIT_INIT_*_ASSERT_STRUCT macros
kunit: tool: remove redundant file.close() call in unit test
kunit: tool: unit tests all check parser errors, standardize formatting a bit
...
|
||
|
Linus Torvalds
|
268325bda5 |
Random number generator updates for Linux 6.2-rc1.
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Merge tag 'random-6.2-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull random number generator updates from Jason Donenfeld:
- Replace prandom_u32_max() and various open-coded variants of it,
there is now a new family of functions that uses fast rejection
sampling to choose properly uniformly random numbers within an
interval:
get_random_u32_below(ceil) - [0, ceil)
get_random_u32_above(floor) - (floor, U32_MAX]
get_random_u32_inclusive(floor, ceil) - [floor, ceil]
Coccinelle was used to convert all current users of
prandom_u32_max(), as well as many open-coded patterns, resulting in
improvements throughout the tree.
I'll have a "late" 6.1-rc1 pull for you that removes the now unused
prandom_u32_max() function, just in case any other trees add a new
use case of it that needs to converted. According to linux-next,
there may be two trivial cases of prandom_u32_max() reintroductions
that are fixable with a 's/.../.../'. So I'll have for you a final
conversion patch doing that alongside the removal patch during the
second week.
This is a treewide change that touches many files throughout.
- More consistent use of get_random_canary().
- Updates to comments, documentation, tests, headers, and
simplification in configuration.
- The arch_get_random*_early() abstraction was only used by arm64 and
wasn't entirely useful, so this has been replaced by code that works
in all relevant contexts.
- The kernel will use and manage random seeds in non-volatile EFI
variables, refreshing a variable with a fresh seed when the RNG is
initialized. The RNG GUID namespace is then hidden from efivarfs to
prevent accidental leakage.
These changes are split into random.c infrastructure code used in the
EFI subsystem, in this pull request, and related support inside of
EFISTUB, in Ard's EFI tree. These are co-dependent for full
functionality, but the order of merging doesn't matter.
- Part of the infrastructure added for the EFI support is also used for
an improvement to the way vsprintf initializes its siphash key,
replacing an sleep loop wart.
- The hardware RNG framework now always calls its correct random.c
input function, add_hwgenerator_randomness(), rather than sometimes
going through helpers better suited for other cases.
- The add_latent_entropy() function has long been called from the fork
handler, but is a no-op when the latent entropy gcc plugin isn't
used, which is fine for the purposes of latent entropy.
But it was missing out on the cycle counter that was also being mixed
in beside the latent entropy variable. So now, if the latent entropy
gcc plugin isn't enabled, add_latent_entropy() will expand to a call
to add_device_randomness(NULL, 0), which adds a cycle counter,
without the absent latent entropy variable.
- The RNG is now reseeded from a delayed worker, rather than on demand
when used. Always running from a worker allows it to make use of the
CPU RNG on platforms like S390x, whose instructions are too slow to
do so from interrupts. It also has the effect of adding in new inputs
more frequently with more regularity, amounting to a long term
transcript of random values. Plus, it helps a bit with the upcoming
vDSO implementation (which isn't yet ready for 6.2).
- The jitter entropy algorithm now tries to execute on many different
CPUs, round-robining, in hopes of hitting even more memory latencies
and other unpredictable effects. It also will mix in a cycle counter
when the entropy timer fires, in addition to being mixed in from the
main loop, to account more explicitly for fluctuations in that timer
firing. And the state it touches is now kept within the same cache
line, so that it's assured that the different execution contexts will
cause latencies.
* tag 'random-6.2-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random: (23 commits)
random: include <linux/once.h> in the right header
random: align entropy_timer_state to cache line
random: mix in cycle counter when jitter timer fires
random: spread out jitter callback to different CPUs
random: remove extraneous period and add a missing one in comments
efi: random: refresh non-volatile random seed when RNG is initialized
vsprintf: initialize siphash key using notifier
random: add back async readiness notifier
random: reseed in delayed work rather than on-demand
random: always mix cycle counter in add_latent_entropy()
hw_random: use add_hwgenerator_randomness() for early entropy
random: modernize documentation comment on get_random_bytes()
random: adjust comment to account for removed function
random: remove early archrandom abstraction
random: use random.trust_{bootloader,cpu} command line option only
stackprotector: actually use get_random_canary()
stackprotector: move get_random_canary() into stackprotector.h
treewide: use get_random_u32_inclusive() when possible
treewide: use get_random_u32_{above,below}() instead of manual loop
treewide: use get_random_u32_below() instead of deprecated function
...
|
||
|
Linus Torvalds
|
a312a8cc3c |
cgroup changes for v6.2-rc1
Nothing too interesting.
* Add CONFIG_DEBUG_GROUP_REF which makes cgroup refcnt operations kprobable.
* A couple cpuset optimizations.
* Other misc changes including doc and test updates.
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Merge tag 'cgroup-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
"Nothing too interesting:
- Add CONFIG_DEBUG_GROUP_REF which makes cgroup refcnt operations
kprobable
- A couple cpuset optimizations
- Other misc changes including doc and test updates"
* tag 'cgroup-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: remove rcu_read_lock()/rcu_read_unlock() in critical section of spin_lock_irq()
cgroup/cpuset: Improve cpuset_css_alloc() description
kselftest/cgroup: Add cleanup() to test_cpuset_prs.sh
cgroup/cpuset: Optimize cpuset_attach() on v2
cgroup/cpuset: Skip spread flags update on v2
kselftest/cgroup: Fix gathering number of CPUs
cgroup: cgroup refcnt functions should be exported when CONFIG_DEBUG_CGROUP_REF
cgroup: Implement DEBUG_CGROUP_REF
|
||
Uladzislau Koshchanka
|
1280d4b76f |
lib: packing: replace bit_reverse() with bitrev8()
Remove bit_reverse() function. Instead use bitrev8() from linux/bitrev.h + bitshift. Reduces code-repetition. Signed-off-by: Uladzislau Koshchanka <koshchanka@gmail.com> Link: https://lore.kernel.org/r/20221210004423.32332-1-koshchanka@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
|
Linus Torvalds
|
c1f0fcd85d |
cxl for 6.2
- Add the cpu_cache_invalidate_memregion() API for cache flushing in
response to physical memory reconfiguration, or memory-side data
invalidation from operations like secure erase or memory-device unlock.
- Add a facility for the kernel to warn about collisions between kernel
and userspace access to PCI configuration registers
- Add support for Restricted CXL Host (RCH) topologies (formerly CXL 1.1)
- Add handling and reporting of CXL errors reported via the PCIe AER
mechanism
- Add support for CXL Persistent Memory Security commands
- Add support for the "XOR" algorithm for CXL host bridge interleave
- Rework / simplify CXL to NVDIMM interactions
- Miscellaneous cleanups and fixes
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Merge tag 'cxl-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull cxl updates from Dan Williams:
"Compute Express Link (CXL) updates for 6.2.
While it may seem backwards, the CXL update this time around includes
some focus on CXL 1.x enabling where the work to date had been with
CXL 2.0 (VH topologies) in mind.
First generation CXL can mostly be supported via BIOS, similar to DDR,
however it became clear there are use cases for OS native CXL error
handling and some CXL 3.0 endpoint features can be deployed on CXL 1.x
hosts (Restricted CXL Host (RCH) topologies). So, this update brings
RCH topologies into the Linux CXL device model.
In support of the ongoing CXL 2.0+ enabling two new core kernel
facilities are added.
One is the ability for the kernel to flag collisions between userspace
access to PCI configuration registers and kernel accesses. This is
brought on by the PCIe Data-Object-Exchange (DOE) facility, a hardware
mailbox over config-cycles.
The other is a cpu_cache_invalidate_memregion() API that maps to
wbinvd_on_all_cpus() on x86. To prevent abuse it is disabled in guest
VMs and architectures that do not support it yet. The CXL paths that
need it, dynamic memory region creation and security commands (erase /
unlock), are disabled when it is not present.
As for the CXL 2.0+ this cycle the subsystem gains support Persistent
Memory Security commands, error handling in response to PCIe AER
notifications, and support for the "XOR" host bridge interleave
algorithm.
Summary:
- Add the cpu_cache_invalidate_memregion() API for cache flushing in
response to physical memory reconfiguration, or memory-side data
invalidation from operations like secure erase or memory-device
unlock.
- Add a facility for the kernel to warn about collisions between
kernel and userspace access to PCI configuration registers
- Add support for Restricted CXL Host (RCH) topologies (formerly CXL
1.1)
- Add handling and reporting of CXL errors reported via the PCIe AER
mechanism
- Add support for CXL Persistent Memory Security commands
- Add support for the "XOR" algorithm for CXL host bridge interleave
- Rework / simplify CXL to NVDIMM interactions
- Miscellaneous cleanups and fixes"
* tag 'cxl-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (71 commits)
cxl/region: Fix memdev reuse check
cxl/pci: Remove endian confusion
cxl/pci: Add some type-safety to the AER trace points
cxl/security: Drop security command ioctl uapi
cxl/mbox: Add variable output size validation for internal commands
cxl/mbox: Enable cxl_mbox_send_cmd() users to validate output size
cxl/security: Fix Get Security State output payload endian handling
cxl: update names for interleave ways conversion macros
cxl: update names for interleave granularity conversion macros
cxl/acpi: Warn about an invalid CHBCR in an existing CHBS entry
tools/testing/cxl: Require cache invalidation bypass
cxl/acpi: Fail decoder add if CXIMS for HBIG is missing
cxl/region: Fix spelling mistake "memergion" -> "memregion"
cxl/regs: Fix sparse warning
cxl/acpi: Set ACPI's CXL _OSC to indicate RCD mode support
tools/testing/cxl: Add an RCH topology
cxl/port: Add RCD endpoint port enumeration
cxl/mem: Move devm_cxl_add_endpoint() from cxl_core to cxl_mem
tools/testing/cxl: Add XOR Math support to cxl_test
cxl/acpi: Support CXL XOR Interleave Math (CXIMS)
...
|
||
|
Rae Moar
|
6c738b5231 |
kunit: improve KTAP compliance of KUnit test output
Change KUnit test output to better comply with KTAP v1 specifications found here: https://kernel.org/doc/html/latest/dev-tools/ktap.html. 1) Use "KTAP version 1" instead of "TAP version 14" as test output header 2) Remove '-' between test number and test name on test result lines 2) Add KTAP version lines to each subtest header as well Note that the new KUnit output still includes the “# Subtest” line now located after the KTAP version line. This does not completely match the KTAP v1 spec but since it is classified as a diagnostic line, it is not expected to be disruptive or break any existing parsers. This “# Subtest” line comes from the TAP 14 spec (https://testanything.org/tap-version-14-specification.html) and it is used to define the test name before the results. Original output: TAP version 14 1..1 # Subtest: kunit-test-suite 1..3 ok 1 - kunit_test_1 ok 2 - kunit_test_2 ok 3 - kunit_test_3 # kunit-test-suite: pass:3 fail:0 skip:0 total:3 # Totals: pass:3 fail:0 skip:0 total:3 ok 1 - kunit-test-suite New output: KTAP version 1 1..1 KTAP version 1 # Subtest: kunit-test-suite 1..3 ok 1 kunit_test_1 ok 2 kunit_test_2 ok 3 kunit_test_3 # kunit-test-suite: pass:3 fail:0 skip:0 total:3 # Totals: pass:3 fail:0 skip:0 total:3 ok 1 kunit-test-suite Signed-off-by: Rae Moar <rmoar@google.com> Reviewed-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: David Gow <davidgow@google.com> Tested-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
||
David Gow
|
909c6475d5 |
mm: slub: test: Use the kunit_get_current_test() function
Use the newly-added function kunit_get_current_test() instead of accessing current->kunit_test directly. This function uses a static key to return more quickly when KUnit is enabled, but no tests are actively running. There should therefore be a negligible performance impact to enabling the slub KUnit tests. Other than the performance improvement, this should be a no-op. Cc: Oliver Glitta <glittao@gmail.com> Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com> Cc: Christoph Lameter <cl@linux.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: David Rientjes <rientjes@google.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Gow <davidgow@google.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
||
|
David Gow
|
908d0c177b |
kunit: Provide a static key to check if KUnit is actively running tests
KUnit does a few expensive things when enabled. This hasn't been a problem because KUnit was only enabled on test kernels, but with a few people enabling (but not _using_) KUnit on production systems, we need a runtime way of handling this. Provide a 'kunit_running' static key (defaulting to false), which allows us to hide any KUnit code behind a static branch. This should reduce the performance impact (on other code) of having KUnit enabled to a single NOP when no tests are running. Note that, while it looks unintuitive, tests always run entirely within __kunit_test_suites_init(), so it's safe to decrement the static key at the end of this function, rather than in __kunit_test_suites_exit(), which is only there to clean up results in debugfs. Signed-off-by: David Gow <davidgow@google.com> Reviewed-by: Daniel Latypov <dlatypov@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
||
|
Linus Torvalds
|
f10bc40168 |
A single update for debugobjetcs:
Add the object pointer to the debug output for better correlation with other debug facilities. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmOUeukTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoWdCD/93/TiOebMyE/ghYWzmbgXPgCS2WD8H Wo7mRqm//4ZkKlpfurSQMjsdabdUyxeD7rSmxk4bgiz6RM9gAiK4ruRg/36tWzoS 2seTgsPaYiluTCI5k6buWejBmO72d3yTAypmnAjHc8yRYverHEEkcUGnxMtiUowg XhmAsFf02zNlTZjwgNAoDDAoEWICTdozWg74j0vYmCP3oH9i08n9JI+TK14C8dUr Rnhigq5mdDDsrNk7336dNPbg5yudT1IPNFtckV+FQ4xIi6xZEsfcP+XMw/K//pEL EJ2WItkcVPCXZCsfHr4QcFgtSDd+XPYcYKvenwLdctceT1/Kely7soYsi1nSc7FA 46Bp+qeVyiASqbYw1O2U4Zec/DEcjdd4PH0ISs2zxX2t1N63F5e6WZ1kfI9IQRA6 wjA9KGD86hX5DCtAUF0zGZNUcSHXjELuL8RNLXlnK3ahDQLNi2hrKrLNLEk9368C BfWjjSDHXY/SK8uITHcwjjCmmTb8YdftLJlxpE35n/tTKdyKxpN4HQBK/dAiaD2/ CsfzyH5XdIDe0jdLo1AT+ukhpSjGetWStbBx9wFY7E88OIIBQfGbwHYofZRcu0+f IjXQxObFO2xqd3U28rM5Oa6Xv/s16tcKxkULxO3lzeDMZ3TD9HzbiJds8Dq8223g I/I7kIrd/XjVag== =JERo -----END PGP SIGNATURE----- Merge tag 'core-debugobjects-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull debugobjects update from Thomas Gleixner: "A single update for debugobjects: Add the object pointer to the debug output for better correlation with other debug facilities" * tag 'core-debugobjects-2022-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: debugobjects: Print object pointer in debug_print_object() |
||
|
Linus Torvalds
|
47477c84b8 |
s390 updates for 6.2 merge window
- Factor out handle_write() function and simplify 3215 console
write operation.
- When 3170 terminal emulator is connected to the 3215 console
driver the boot time could be very long due to limited buffer
space or missing operator input. Add con3215_drop command line
parameter and con3215_drop sysfs attribute file to instruct
the kernel drop console data when such conditions are met.
- Fix white space errors in 3215 console driver.
- Move enum paiext_mode definition to a header file and rename
it to paievt_mode to indicate this is now used for several
events. Rename PAI_MODE_COUNTER to PAI_MODE_COUNTING to make
consistent with PAI_MODE_SAMPLING.
- Simplify the logic of PMU pai_crypto mapped buffer reference
counter and make it consistent with PMU pai_ext.
- Rename PMU pai_crypto mapped buffer structure member users
to active_events to make it consistent with PMU pai_ext.
- Enable HUGETLB_PAGE_OPTIMIZE_VMEMMAP configuration option.
This results in saving of 12K per 1M hugetlb page (~1.2%)
and 32764K per 2G hugetlb page (~1.6%).
- Use generic serial.h, bugs.h, shmparam.h and vga.h header
files and scrap s390-specific versions.
- The generic percpu setup code does not expect the s390-like
implementation and emits a warning. To get rid of that warning
and provide sane CPU-to-node and CPU-to-CPU distance mappings
implementat a minimal version of setup_per_cpu_areas().
- Use kstrtobool() instead of strtobool() for re-IPL sysfs device
attributes.
- Avoid unnecessary lookup of a pointer to MSI descriptor when
setting IRQ affinity for a PCI device.
- Get rid of "an incompatible function type cast" warning by
changing debug_sprintf_format_fn() function prototype so it
matches the debug_format_proc_t function type.
- Remove unused info_blk_hdr__pcpus() and get_page_state()
functions.
- Get rid of clang "unused unused insn cache ops function"
warning by moving s390_insn definition to a private header.
- Get rid of clang "unused function" warning by making function
raw3270_state_final() only available if CONFIG_TN3270_CONSOLE
is enabled.
- Use kstrobool() to parse sclp_con_drop parameter to make it
identical to the con3215_drop parameter and allow passing
values like "yes" and "true".
- Use sysfs_emit() for all SCLP sysfs show functions, which is
the current standard way to generate output strings.
- Make SCLP con_drop sysfs attribute also writable and allow to
change its value during runtime. This makes SCLP console drop
handling consistent with the 3215 device driver.
- Virtual and physical addresses are indentical on s390. However,
there is still a confusion when pointers are directly casted to
physical addresses or vice versa. Use correct address converters
virt_to_phys() and phys_to_virt() for s390 channel IO drivers.
- Support for power managemant has been removed from s390 since
quite some time. Remove unused power managemant code from the
appldata device driver.
- Allow memory tools like KASAN see memory accesses from the
checksum code. Switch to GENERIC_CSUM if KASAN is enabled,
just like x86 does.
- Add support of ECKD DASDs disks so it could be used as boot
and dump devices.
- Follow checkpatch recommendations and use octal values instead
of S_IRUGO and S_IWUSR for dump device attributes in sysfs.
- Changes to vx-insn.h do not cause a recompile of C files that
use asm(".include \"asm/vx-insn.h\"\n") magic to access vector
instruction macros from inline assemblies. Add wrapper include
header file to avoid this problem.
- Use vector instruction macros instead of byte patterns to
increase register validation routine readability.
- The current machine check register validation handling does not
take into account various scenarios and might lead to killing a
wrong user process or potentially ignore corrupted FPU registers.
Simplify logic of the machine check handler and stop the whole
machine if the previous context was kerenel mode. If the previous
context was user mode, kill the current task.
- Introduce sclp_emergency_printk() function which can be used to
emit a message in emergency cases. It is supposed to be used in
cases where regular console device drivers may not work anymore,
e.g. unrecoverable machine checks.
Keep the early Service-Call Control Block so it can also be used
after initdata has been freed to allow sclp_emergency_printk()
implementation.
- In case a system will be stopped because of an unrecoverable
machine check error print the machine check interruption code
to give a hint of what went wrong.
- Move storage error checking from the assembly entry code to C
in order to simplify machine check handling. Enter the handler
with DAT turned on, which simplifies the entry code even more.
- The machine check extended save areas are allocated using
a private "nmi_save_areas" slab cache which guarantees a
required power-of-two alignment. Get rid of that cache in
favour of kmalloc().
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Merge tag 's390-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Alexander Gordeev:
- Factor out handle_write() function and simplify 3215 console write
operation
- When 3170 terminal emulator is connected to the 3215 console driver
the boot time could be very long due to limited buffer space or
missing operator input. Add con3215_drop command line parameter and
con3215_drop sysfs attribute file to instruct the kernel drop console
data when such conditions are met
- Fix white space errors in 3215 console driver
- Move enum paiext_mode definition to a header file and rename it to
paievt_mode to indicate this is now used for several events. Rename
PAI_MODE_COUNTER to PAI_MODE_COUNTING to make consistent with
PAI_MODE_SAMPLING
- Simplify the logic of PMU pai_crypto mapped buffer reference counter
and make it consistent with PMU pai_ext
- Rename PMU pai_crypto mapped buffer structure member users to
active_events to make it consistent with PMU pai_ext
- Enable HUGETLB_PAGE_OPTIMIZE_VMEMMAP configuration option. This
results in saving of 12K per 1M hugetlb page (~1.2%) and 32764K per
2G hugetlb page (~1.6%)
- Use generic serial.h, bugs.h, shmparam.h and vga.h header files and
scrap s390-specific versions
- The generic percpu setup code does not expect the s390-like
implementation and emits a warning. To get rid of that warning and
provide sane CPU-to-node and CPU-to-CPU distance mappings implementat
a minimal version of setup_per_cpu_areas()
- Use kstrtobool() instead of strtobool() for re-IPL sysfs device
attributes
- Avoid unnecessary lookup of a pointer to MSI descriptor when setting
IRQ affinity for a PCI device
- Get rid of "an incompatible function type cast" warning by changing
debug_sprintf_format_fn() function prototype so it matches the
debug_format_proc_t function type
- Remove unused info_blk_hdr__pcpus() and get_page_state() functions
- Get rid of clang "unused unused insn cache ops function" warning by
moving s390_insn definition to a private header
- Get rid of clang "unused function" warning by making function
raw3270_state_final() only available if CONFIG_TN3270_CONSOLE is
enabled
- Use kstrobool() to parse sclp_con_drop parameter to make it identical
to the con3215_drop parameter and allow passing values like "yes" and
"true"
- Use sysfs_emit() for all SCLP sysfs show functions, which is the
current standard way to generate output strings
- Make SCLP con_drop sysfs attribute also writable and allow to change
its value during runtime. This makes SCLP console drop handling
consistent with the 3215 device driver
- Virtual and physical addresses are indentical on s390. However, there
is still a confusion when pointers are directly casted to physical
addresses or vice versa. Use correct address converters
virt_to_phys() and phys_to_virt() for s390 channel IO drivers
- Support for power managemant has been removed from s390 since quite
some time. Remove unused power managemant code from the appldata
device driver
- Allow memory tools like KASAN see memory accesses from the checksum
code. Switch to GENERIC_CSUM if KASAN is enabled, just like x86 does
- Add support of ECKD DASDs disks so it could be used as boot and dump
devices
- Follow checkpatch recommendations and use octal values instead of
S_IRUGO and S_IWUSR for dump device attributes in sysfs
- Changes to vx-insn.h do not cause a recompile of C files that use
asm(".include \"asm/vx-insn.h\"\n") magic to access vector
instruction macros from inline assemblies. Add wrapper include header
file to avoid this problem
- Use vector instruction macros instead of byte patterns to increase
register validation routine readability
- The current machine check register validation handling does not take
into account various scenarios and might lead to killing a wrong user
process or potentially ignore corrupted FPU registers. Simplify logic
of the machine check handler and stop the whole machine if the
previous context was kerenel mode. If the previous context was user
mode, kill the current task
- Introduce sclp_emergency_printk() function which can be used to emit
a message in emergency cases. It is supposed to be used in cases
where regular console device drivers may not work anymore, e.g.
unrecoverable machine checks
Keep the early Service-Call Control Block so it can also be used
after initdata has been freed to allow sclp_emergency_printk()
implementation
- In case a system will be stopped because of an unrecoverable machine
check error print the machine check interruption code to give a hint
of what went wrong
- Move storage error checking from the assembly entry code to C in
order to simplify machine check handling. Enter the handler with DAT
turned on, which simplifies the entry code even more
- The machine check extended save areas are allocated using a private
"nmi_save_areas" slab cache which guarantees a required power-of-two
alignment. Get rid of that cache in favour of kmalloc()
* tag 's390-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (38 commits)
s390/nmi: get rid of private slab cache
s390/nmi: move storage error checking back to C, enter with DAT on
s390/nmi: print machine check interruption code before stopping system
s390/sclp: introduce sclp_emergency_printk()
s390/sclp: keep sclp_early_sccb
s390/nmi: rework register validation handling
s390/nmi: use vector instruction macros instead of byte patterns
s390/vx: add vx-insn.h wrapper include file
s390/ipl: use octal values instead of S_* macros
s390/ipl: add eckd dump support
s390/ipl: add eckd support
vfio/ccw: identify CCW data addresses as physical
vfio/ccw: sort out physical vs virtual pointers usage
s390/checksum: support GENERIC_CSUM, enable it for KASAN
s390/appldata: remove power management callbacks
s390/cio: sort out physical vs virtual pointers usage
s390/sclp: allow to change sclp_console_drop during runtime
s390/sclp: convert to use sysfs_emit()
s390/sclp: use kstrobool() to parse sclp_con_drop parameter
s390/3270: make raw3270_state_final() depend on CONFIG_TN3270_CONSOLE
...
|
||
|
Linus Torvalds
|
893660b0e1 |
slab updates for 6.2-rc1
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Merge tag 'slab-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab updates from Vlastimil Babka:
- SLOB deprecation and SLUB_TINY
The SLOB allocator adds maintenance burden and stands in the way of
API improvements [1]. Deprecate it by renaming the config option (to
make users notice) to CONFIG_SLOB_DEPRECATED with updated help text.
SLUB should be used instead as SLAB will be the next on the removal
list.
Based on reports from a riscv k210 board with 8MB RAM, add a
CONFIG_SLUB_TINY option to minimize SLUB's memory usage at the
expense of scalability. This has resolved the k210 regression [2] so
in case there are no others (that wouldn't be resolvable by further
tweaks to SLUB_TINY) plan is to remove SLOB in a few cycles.
Existing defconfigs with CONFIG_SLOB are converted to
CONFIG_SLUB_TINY.
- kmalloc() slub_debug redzone improvements
A series from Feng Tang that builds on the tracking or requested size
for kmalloc() allocations (for caches with debugging enabled) added
in 6.1, to make redzone checks consider the requested size and not
the rounded up one, in order to catch more subtle buffer overruns.
Includes new slub_kunit test.
- struct slab fields reordering to accomodate larger rcu_head
RCU folks would like to grow rcu_head with debugging options, which
breaks current struct slab layout's assumptions, so reorganize it to
make this possible.
- Miscellaneous improvements/fixes:
- __alloc_size checking compiler workaround (Kees Cook)
- Optimize and cleanup SLUB's sysfs init (Rasmus Villemoes)
- Make SLAB compatible with PROVE_RAW_LOCK_NESTING (Jiri Kosina)
- Correct SLUB's percpu allocation estimates (Baoquan He)
- Re-enableS LUB's run-time failslab sysfs control (Alexander Atanasov)
- Make tools/vm/slabinfo more user friendly when not run as root (Rong Tao)
- Dead code removal in SLUB (Hyeonggon Yoo)
* tag 'slab-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: (31 commits)
mm, slob: rename CONFIG_SLOB to CONFIG_SLOB_DEPRECATED
mm, slub: don't aggressively inline with CONFIG_SLUB_TINY
mm, slub: remove percpu slabs with CONFIG_SLUB_TINY
mm, slub: split out allocations from pre/post hooks
mm/slub, kunit: Add a test case for kmalloc redzone check
mm/slub, kunit: add SLAB_SKIP_KFENCE flag for cache creation
mm, slub: refactor free debug processing
mm, slab: ignore SLAB_RECLAIM_ACCOUNT with CONFIG_SLUB_TINY
mm, slub: don't create kmalloc-rcl caches with CONFIG_SLUB_TINY
mm, slub: lower the default slub_max_order with CONFIG_SLUB_TINY
mm, slub: retain no free slabs on partial list with CONFIG_SLUB_TINY
mm, slub: disable SYSFS support with CONFIG_SLUB_TINY
mm, slub: add CONFIG_SLUB_TINY
mm, slab: ignore hardened usercopy parameters when disabled
slab: Remove special-casing of const 0 size allocations
slab: Clean up SLOB vs kmalloc() definition
mm/sl[au]b: rearrange struct slab fields to allow larger rcu_head
mm/migrate: make isolate_movable_page() skip slab pages
mm/slab: move and adjust kernel-doc for kmem_cache_alloc
mm/slub, percpu: correct the calculation of early percpu allocation size
...
|
||
|
Linus Torvalds
|
98d0052d0d |
printk changes for 6.2
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Merge tag 'printk-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk updates from Petr Mladek:
- Add NMI-safe SRCU reader API. It uses atomic_inc() instead of
this_cpu_inc() on strong load-store architectures.
- Introduce new console_list_lock to synchronize a manipulation of the
list of registered consoles and their flags.
This is a first step in removing the big-kernel-lock-like behavior of
console_lock(). This semaphore still serializes console->write()
calbacks against:
- each other. It primary prevents potential races between early
and proper console drivers using the same device.
- suspend()/resume() callbacks and init() operations in some
drivers.
- various other operations in the tty/vt and framebufer
susbsystems. It is likely that console_lock() serializes even
operations that are not directly conflicting with the
console->write() callbacks here. This is the most complicated
big-kernel-lock aspect of the console_lock() that will be hard
to untangle.
- Introduce new console_srcu lock that is used to safely iterate and
access the registered console drivers under SRCU read lock.
This is a prerequisite for introducing atomic console drivers and
console kthreads. It will reduce the complexity of serialization
against normal consoles and console_lock(). Also it should remove the
risk of deadlock during critical situations, like Oops or panic, when
only atomic consoles are registered.
- Check whether the console is registered instead of enabled on many
locations. It was a historical leftover.
- Cleanly force a preferred console in xenfb code instead of a dirty
hack.
- A lot of code and comment clean ups and improvements.
* tag 'printk-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: (47 commits)
printk: htmldocs: add missing description
tty: serial: sh-sci: use setup() callback for early console
printk: relieve console_lock of list synchronization duties
tty: serial: kgdboc: use console_list_lock to trap exit
tty: serial: kgdboc: synchronize tty_find_polling_driver() and register_console()
tty: serial: kgdboc: use console_list_lock for list traversal
tty: serial: kgdboc: use srcu console list iterator
proc: consoles: use console_list_lock for list iteration
tty: tty_io: use console_list_lock for list synchronization
printk, xen: fbfront: create/use safe function for forcing preferred
netconsole: avoid CON_ENABLED misuse to track registration
usb: early: xhci-dbc: use console_is_registered()
tty: serial: xilinx_uartps: use console_is_registered()
tty: serial: samsung_tty: use console_is_registered()
tty: serial: pic32_uart: use console_is_registered()
tty: serial: earlycon: use console_is_registered()
tty: hvc: use console_is_registered()
efi: earlycon: use console_is_registered()
tty: nfcon: use console_is_registered()
serial_core: replace uart_console_enabled() with uart_console_registered()
...
|
||
|
Linus Torvalds
|
3a28c2c89f |
Enable -funsigned-char and fix code affected by that flag.
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Merge tag 'unsigned-char-6.2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/zx2c4/linux
Pull unsigned-char conversion from Jason Donenfeld:
"Enable -funsigned-char and fix code affected by that flag.
During the 6.1 cycle, several patches already made it into the tree,
which were for code that was already broken on at least one
architecture, where the naked char had a different sign than the code
author anticipated, or were part of some bug fix for an existing bug
that this initiative unearthed.
These 6.1-era fixes are:
|
||
|
Linus Torvalds
|
f433cf2102 |
KCSAN updates for v6.2
This series adds instrumentation for memcpy(), memset(), and memmove() for Clang v16+'s new function names that are used when the -fsanitize=thread argument is given. It also fixes objtool warnings from KCSAN's volatile instrumentation, and fixes a pair of typos in a pair of Kconfig options' help clauses. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEbK7UrM+RBIrCoViJnr8S83LZ+4wFAmOKn5gTHHBhdWxtY2tA a2VybmVsLm9yZwAKCRCevxLzctn7jHoyD/9gkMct9vIgKRZbMYW9haoLIJlYiwrT sps8x2PssOwy99I89BTEovnIyPdQ9y3uLuHWMHAUcSN0JZqe797OIEnFImPiXPQF q2dEg4zeHXGlD0+EDpr+FUcu1Sc4ppk2AqQiS4YiIfQzunS2RMETB+FkehLDMmgm sJCd40E+xsCbq8yeCYOP2UkDeeJbVvdekli3GsjCu8vjE2UYaBjjZugXgIge9lOQ FnMfJfrcQutLgLrm4oz2s2Jt7Km3Bl40IJVYeFGdrKBaIXhCXKsbESfOdudRGRTb jPNf7s7Ofce8b3DQcT/sr8II49CZ0ekhEsExTfGdQKTz+2tghxGolY7VOZ8Nvd78 fM4SHicN/JREMcLTES0VNR+qPQLoFX1qtIXWQUt6OvxP1EoMandRahaGv+OYJ2Cm lWcmiZWJIDNhQukgnFn2wSd2pkn+Bqj5S6oUhBdcjvVBvt2vCCJtHfZenCLJvJLq k7nPvofvxA7oec9kDRcwJz+Np29DT7MR8gcn0kElF/Biq1F/wlKNuXyX9Sexm821 XQWEWUGFOtirK9BtxDI8R1uIpKWvLm66mnoXDWSb9kTZrkZHc2sa5j7ipPfOtWkr GAPfGrn2o6ckg7M5SKlRo87RdjDzyFxLXn5vqkmwMM8ntRTq8nc7JpJSxX96wVJm v5+HXwRwB5iT0w== =/aBz -----END PGP SIGNATURE----- Merge tag 'kcsan.2022.12.02a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull KCSAN updates from Paul McKenney: - Add instrumentation for memcpy(), memset(), and memmove() for Clang v16+'s new function names that are used when the -fsanitize=thread argument is given - Fix objtool warnings from KCSAN's volatile instrumentation, and typos in a pair of Kconfig options' help clauses * tag 'kcsan.2022.12.02a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: kcsan: Fix trivial typo in Kconfig help comments objtool, kcsan: Add volatile read/write instrumentation to whitelist kcsan: Instrument memcpy/memset/memmove with newer Clang |
||
|
Linus Torvalds
|
1fab45ab6e |
RCU pull request for v6.2
This pull request contains the following branches: doc.2022.10.20a: Documentation updates. This is the second in a series from an ongoing review of the RCU documentation. fixes.2022.10.21a: Miscellaneous fixes. lazy.2022.11.30a: Introduces a default-off Kconfig option that depends on RCU_NOCB_CPU that, on CPUs mentioned in the nohz_full or rcu_nocbs boot-argument CPU lists, causes call_rcu() to introduce delays. These delays result in significant power savings on nearly idle Android and ChromeOS systems. These savings range from a few percent to more than ten percent. This series also includes several commits that change call_rcu() to a new call_rcu_hurry() function that avoids these delays in a few cases, for example, where timely wakeups are required. Several of these are outside of RCU and thus have acks and reviews from the relevant maintainers. srcunmisafe.2022.11.09a: Creates an srcu_read_lock_nmisafe() and an srcu_read_unlock_nmisafe() for architectures that support NMIs, but which do not provide NMI-safe this_cpu_inc(). These NMI-safe SRCU functions are required by the upcoming lockless printk() work by John Ogness et al. That printk() series depends on these commits, so if you pull the printk() series before this one, you will have already pulled in this branch, plus two more SRCU commits: |
||
Tejun Heo
|
e47877c7aa |
rhashtable: Allow rhashtable to be used from irq-safe contexts
rhashtable currently only does bh-safe synchronization making it impossible
to use from irq-safe contexts. Switch it to use irq-safe synchronization to
remove the restriction.
v2: Update the lock functions to return the ulong flags value and unlock
functions to take the value directly instead of passing around the
pointer. Suggested by Linus.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: David Vernet <dvernet@meta.com>
Acked-by: Josh Don <joshdon@google.com>
Acked-by: Hao Luo <haoluo@google.com>
Acked-by: Barret Rhoden <brho@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
||
|
Jakub Kicinski
|
837e8ac871 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
Petr Mladek
|
6b2b0d839a | Merge branch 'rework/console-list-lock' into for-linus | ||
Heiko Carstens
|
706f2ada82 |
s390/vx: add vx-insn.h wrapper include file
The vector instruction macros can also be used in inline assemblies. For
this the magic
asm(".include \"asm/vx-insn.h\"\n");
must be added to C files in order to avoid that the pre-processor
eliminates the __ASSEMBLY__ guarded macros. This however comes with the
problem that changes to asm/vx-insn.h do not cause a recompile of C files
which have only this magic statement instead of a proper include statement.
This can be observed with the arch/s390/kernel/fpu.c file.
In order to fix this problem and also to avoid that the include must
be specified twice, add a wrapper include header file which will do
all necessary steps.
This way only the vx-insn.h header file needs to be included and changes to
the new vx-insn-asm.h header file cause a recompile of all dependent files
like it should.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
|
||
Gary Guo
|
ecaa6ddff2 |
rust: add build_error crate
The `build_error` crate provides a function `build_error` which will panic at compile-time if executed in const context and, by default, will cause a build error if not executed at compile time and the optimizer does not optimise away the call. The `CONFIG_RUST_BUILD_ASSERT_ALLOW` kernel option allows to relax the default build failure and convert it to a runtime check. If the runtime check fails, `panic!` will be called. Its functionality will be exposed to users as a couple macros in the `kernel` crate in the following patch, thus some documentation here refers to them for simplicity. Signed-off-by: Gary Guo <gary@garyguo.net> Reviewed-by: Wei Liu <wei.liu@kernel.org> [Reworded, adapted for upstream and applied latest changes] Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
||
|
Linus Torvalds
|
bdaa78c6aa |
15 hotfixes. 11 marked cc:stable. Only three or four of the latter
address post-6.0 issues, which is hopefully a sign that things are converging. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY4pQpQAKCRDdBJ7gKXxA jquxAP9Lqif7CGDgdq8uWY2hHS/Ujc3k7Ohgyzs37olnCuU8KwEA6/J7SpjsBgtY OfzvnwxpCTh8Kfzu/oNckIHo/EEiIA8= =o6qT -----END PGP SIGNATURE----- Merge tag 'mm-hotfixes-stable-2022-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc hotfixes from Andrew Morton: "15 hotfixes, 11 marked cc:stable. Only three or four of the latter address post-6.0 issues, which is hopefully a sign that things are converging" * tag 'mm-hotfixes-stable-2022-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: revert "kbuild: fix -Wimplicit-function-declaration in license_is_gpl_compatible" Kconfig.debug: provide a little extra FRAME_WARN leeway when KASAN is enabled drm/amdgpu: temporarily disable broken Clang builds due to blown stack-frame mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths mm/khugepaged: fix GUP-fast interaction by sending IPI mm/khugepaged: take the right locks for page table retraction mm: migrate: fix THP's mapcount on isolation mm: introduce arch_has_hw_nonleaf_pmd_young() mm: add dummy pmd_young() for architectures not having it mm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damon_sysfs_set_schemes() tools/vm/slabinfo-gnuplot: use "grep -E" instead of "egrep" nilfs2: fix NULL pointer dereference in nilfs_palloc_commit_free_entry() hugetlb: don't delete vma_lock in hugetlb MADV_DONTNEED processing madvise: use zap_page_range_single for madvise dontneed mm: replace VM_WARN_ON to pr_warn if the node is offline with __GFP_THISNODE |
||
Anders Roxell
|
5abf698754 |
lib: fortify_kunit: build without structleak plugin
Building allmodconfig with aarch64-linux-gnu-gcc (Debian 11.3.0-6), fortify_kunit with strucleak plugin enabled makes the stack frame size to grow too large: lib/fortify_kunit.c:140:1: error: the frame size of 2368 bytes is larger than 2048 bytes [-Werror=frame-larger-than=] Turn off the structleak plugin checks for fortify_kunit. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Kees Cook <keescook@chromium.org> |
||
|
Kees Cook
|
79cc1ba7ba |
panic: Consolidate open-coded panic_on_warn checks
Several run-time checkers (KASAN, UBSAN, KFENCE, KCSAN, sched) roll their own warnings, and each check "panic_on_warn". Consolidate this into a single function so that future instrumentation can be added in a single location. Cc: Marco Elver <elver@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Ben Segall <bsegall@google.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Daniel Bristot de Oliveira <bristot@redhat.com> Cc: Valentin Schneider <vschneid@redhat.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: David Gow <davidgow@google.com> Cc: tangmeng <tangmeng@uniontech.com> Cc: Jann Horn <jannh@google.com> Cc: Shuah Khan <skhan@linuxfoundation.org> Cc: Petr Mladek <pmladek@suse.com> Cc: "Paul E. McKenney" <paulmck@kernel.org> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: "Guilherme G. Piccoli" <gpiccoli@igalia.com> Cc: Tiezhu Yang <yangtiezhu@loongson.cn> Cc: kasan-dev@googlegroups.com Cc: linux-mm@kvack.org Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Marco Elver <elver@google.com> Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com> Link: https://lore.kernel.org/r/20221117234328.594699-4-keescook@chromium.org |
||
Jason Gunthorpe
|
90337f526c |
Merge tag 'v6.1-rc7' into iommufd.git for-next
Resolve conflicts in drivers/vfio/vfio_main.c by using the iommfd version. The rc fix was done a different way when iommufd patches reworked this code. Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
||
Stephen Boyd
|
c4db2d3b70 |
debugobjects: Print object pointer in debug_print_object()
Delayed kobject debugging (CONFIG_DEBUG_KOBJECT_RELEASE) prints the kobject pointer that's being released in kobject_release() before scheduling a randomly delayed work to do the actual release work. If the caller of kobject_put() frees the kobject upon return then this will typically emit a debugobject warning about freeing an active timer. Usually the release function is the function that does the kfree() of the struct containing the kobject. For example the following print is seen kobject: 'queue' (ffff888114236190): kobject_release, parent 0000000000000000 (delayed 1000) ------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: kobject_delayed_cleanup+0x0/0x390 but the kobject printk cannot be matched with the debug object printk because it could be any number of kobjects that was released around that time. The random delay for the work doesn't help either. Print the address of the object being tracked to help to figure out which kobject is the problem here. Note that this does not use %px here to match the other %p usage in debugobject debugging. Due to %p usage it is required to disable pointer hashing to correlate the two pointer printks. Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20220519202201.2348343-1-swboyd@chromium.org |
||
Steven Rostedt (Google)
|
a4412fdd49 |
error-injection: Add prompt for function error injection
The config to be able to inject error codes into any function annotated
with ALLOW_ERROR_INJECTION() is enabled when FUNCTION_ERROR_INJECTION is
enabled. But unfortunately, this is always enabled on x86 when KPROBES
is enabled, and there's no way to turn it off.
As kprobes is useful for observability of the kernel, it is useful to
have it enabled in production environments. But error injection should
be avoided. Add a prompt to the config to allow it to be disabled even
when kprobes is enabled, and get rid of the "def_bool y".
This is a kernel debug feature (it's in Kconfig.debug), and should have
never been something enabled by default.
Cc: stable@vger.kernel.org
Fixes:
|
||
Yury Norov
|
fe5759d5bf |
cpumask: limit visibility of FORCE_NR_CPUS
In current form, FORCE_NR_CPUS is visible to all users building their kernels, even not experts. It is also set in allmodconfig or allyesconfig, which is not a correct behavior. This patch fixes it. It also changes the parameter short description: removes implementation details and highlights the effect of the change. Link: https://lkml.kernel.org/r/20221116172451.274938-1-yury.norov@gmail.com Signed-off-by: Yury Norov <yury.norov@gmail.com> Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Reviewed-by: Valentin Schneider <vschneid@redhat.com> Cc: Alexey Klimov <klimov.linux@gmail.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Eric Biggers <ebiggers@google.com> Cc: Paul E. McKenney <paulmck@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sander Vanheule <sander@svanheule.net> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Rong Tao
|
fc0e738792 |
lib/radix-tree.c: fix uninitialized variable compilation warning
We need to set an initial value for offset to eliminate compilation
warning.
How to reproduce warning:
$ make -C tools/testing/radix-tree
radix-tree.c: In function `radix_tree_tag_clear':
radix-tree.c:1046:17: warning: `offset' may be used uninitialized in this function [-Wmaybe-uninitialized]
1046 | node_tag_clear(root, parent, tag, offset);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Link: https://lkml.kernel.org/r/tencent_DF74099967595DCEA93CBDC28D062026180A@qq.com
Signed-off-by: Rong Tao <rongtao@cestc.cn>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
||
Akinobu Mita
|
f883c3edd2 |
lib/notifier-error-inject: fix error when writing -errno to debugfs file
The simple attribute files do not accept a negative value since the commit |
||
|
Randy Dunlap
|
845aad0aa0 |
maple_tree: allow TEST_MAPLE_TREE only when DEBUG_KERNEL is set
Prevent a kconfig warning that is caused by TEST_MAPLE_TREE by adding a
"depends on" clause for TEST_MAPLE_TREE since 'select' does not follow any
kconfig dependencies.
WARNING: unmet direct dependencies detected for DEBUG_MAPLE_TREE
Depends on [n]: DEBUG_KERNEL [=n]
Selected by [y]:
- TEST_MAPLE_TREE [=y] && RUNTIME_TESTING_MENU [=y]
Link: https://lkml.kernel.org/r/20221119055117.14094-1-rdunlap@infradead.org
Fixes:
|
||
|
Liam Howlett
|
6e7ba8b5e2 |
maple_tree: mte_set_full() and mte_clear_full() clang-analyzer clean up
mte_set_full() and mte_clear_full() were incorrectly setting a pointer to a value without returning a result. Fix this by returning the modified pointer to be use as necessary. Also add a third function to return if the bit is set or not. Link: https://lore.kernel.org/lkml/20221026120029.12555-1-lukas.bulwahn@gmail.com/ Link: https://lkml.kernel.org/r/20221028144520.2776767-1-Liam.Howlett@oracle.com Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> Suggested-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Suggested-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Shakeel Butt
|
f689054aac |
percpu_counter: add percpu_counter_sum_all interface
The percpu_counter is used for scenarios where performance is more important than the accuracy. For percpu_counter users, who want more accurate information in their slowpath, percpu_counter_sum is provided which traverses all the online CPUs to accumulate the data. The reason it only needs to traverse online CPUs is because percpu_counter does implement CPU offline callback which syncs the local data of the offlined CPU. However there is a small race window between the online CPUs traversal of percpu_counter_sum and the CPU offline callback. The offline callback has to traverse all the percpu_counters on the system to flush the CPU local data which can be a lot. During that time, the CPU which is going offline has already been published as offline to all the readers. So, as the offline callback is running, percpu_counter_sum can be called for one counter which has some state on the CPU going offline. Since percpu_counter_sum only traverses online CPUs, it will skip that specific CPU and the offline callback might not have flushed the state for that specific percpu_counter on that offlined CPU. Normally this is not an issue because percpu_counter users can deal with some inaccuracy for small time window. However a new user i.e. mm_struct on the cleanup path wants to check the exact state of the percpu_counter through check_mm(). For such users, this patch introduces percpu_counter_sum_all() which traverses all possible CPUs and it is used in fork.c:check_mm() to avoid the potential race. This issue is exposed by the later patch "mm: convert mm's rss stats into percpu_counter". Link: https://lkml.kernel.org/r/20221109012011.881058-1-shakeelb@google.com Signed-off-by: Shakeel Butt <shakeelb@google.com> Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Vlastimil Babka
|
dc19745ad0 |
Merge branch 'slub-tiny-v1r6' into slab/for-next
Merge my series [1] to deprecate the SLOB allocator. - Renames CONFIG_SLOB to CONFIG_SLOB_DEPRECATED with deprecation notice. - The recommended replacement is CONFIG_SLUB, optionally with the new CONFIG_SLUB_TINY tweaks for systems with 16MB or less RAM. - Use cases that stopped working with CONFIG_SLUB_TINY instead of SLOB should be reported to linux-mm@kvack.org and slab maintainers, otherwise SLOB will be removed in few cycles. [1] https://lore.kernel.org/all/20221121171202.22080-1-vbabka@suse.cz/ |
||
Feng Tang
|
6cd6d33ca4 |
mm/slub, kunit: Add a test case for kmalloc redzone check
kmalloc redzone check for slub has been merged, and it's better to add
a kunit case for it, which is inspired by a real-world case as described
in commit
|
||
|
Andrew Morton
|
a38358c934 | Merge branch 'mm-hotfixes-stable' into mm-stable | ||
Lee Jones
|
152fe65f30 |
Kconfig.debug: provide a little extra FRAME_WARN leeway when KASAN is enabled
When enabled, KASAN enlarges function's stack-frames. Pushing quite a few over the current threshold. This can mainly be seen on 32-bit architectures where the present limit (when !GCC) is a lowly 1024-Bytes. Link: https://lkml.kernel.org/r/20221125120750.3537134-3-lee@kernel.org Signed-off-by: Lee Jones <lee@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@gmail.com> Cc: Harry Wentland <harry.wentland@amd.com> Cc: Leo Li <sunpeng.li@amd.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Tom Rix <trix@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Feng Tang
|
4d9dd4b0ce |
mm/slub, kunit: add SLAB_SKIP_KFENCE flag for cache creation
When kfence is enabled, the buffer allocated from the test case could be from a kfence pool, and the operation could be also caught and reported by kfence first, causing the case to fail. With default kfence setting, this is very difficult to be triggered. By changing CONFIG_KFENCE_NUM_OBJECTS from 255 to 16383, and CONFIG_KFENCE_SAMPLE_INTERVAL from 100 to 5, the allocation from kfence did hit 7 times in different slub_kunit cases out of 900 times of boot test. To avoid this, initially we tried is_kfence_address() to check this and repeated allocation till finding a non-kfence address. Vlastimil Babka suggested SLAB_SKIP_KFENCE flag could be used to achieve this, and better add a wrapper function for simplifying cache creation. Signed-off-by: Feng Tang <feng.tang@intel.com> Reviewed-by: Marco Elver <elver@google.com> Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Signed-off-by: Vlastimil Babka <vbabka@suse.cz> |
||
Joel Fernandes (Google)
|
343a72e5e3 |
percpu-refcount: Use call_rcu_hurry() for atomic switch
Earlier commits in this series allow battery-powered systems to build their kernels with the default-disabled CONFIG_RCU_LAZY=y Kconfig option. This Kconfig option causes call_rcu() to delay its callbacks in order to batch callbacks. This means that a given RCU grace period covers more callbacks, thus reducing the number of grace periods, in turn reducing the amount of energy consumed, which increases battery lifetime which can be a very good thing. This is not a subtle effect: In some important use cases, the battery lifetime is increased by more than 10%. This CONFIG_RCU_LAZY=y option is available only for CPUs that offload callbacks, for example, CPUs mentioned in the rcu_nocbs kernel boot parameter passed to kernels built with CONFIG_RCU_NOCB_CPU=y. Delaying callbacks is normally not a problem because most callbacks do nothing but free memory. If the system is short on memory, a shrinker will kick all currently queued lazy callbacks out of their laziness, thus freeing their memory in short order. Similarly, the rcu_barrier() function, which blocks until all currently queued callbacks are invoked, will also kick lazy callbacks, thus enabling rcu_barrier() to complete in a timely manner. However, there are some cases where laziness is not a good option. For example, synchronize_rcu() invokes call_rcu(), and blocks until the newly queued callback is invoked. It would not be a good for synchronize_rcu() to block for ten seconds, even on an idle system. Therefore, synchronize_rcu() invokes call_rcu_hurry() instead of call_rcu(). The arrival of a non-lazy call_rcu_hurry() callback on a given CPU kicks any lazy callbacks that might be already queued on that CPU. After all, if there is going to be a grace period, all callbacks might as well get full benefit from it. Yes, this could be done the other way around by creating a call_rcu_lazy(), but earlier experience with this approach and feedback at the 2022 Linux Plumbers Conference shifted the approach to call_rcu() being lazy with call_rcu_hurry() for the few places where laziness is inappropriate. And another call_rcu() instance that cannot be lazy is the one on the percpu refcounter's "per-CPU to atomic switch" code path, which uses RCU when switching to atomic mode. The enqueued callback wakes up waiters waiting in the percpu_ref_switch_waitq. Allowing this callback to be lazy would result in unacceptable slowdowns for users of per-CPU refcounts, such as blk_pre_runtime_suspend(). Therefore, make __percpu_ref_switch_to_atomic() use call_rcu_hurry() in order to revert to the old behavior. [ paulmck: Apply s/call_rcu_flush/call_rcu_hurry/ feedback from Tejun Heo. ] Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Dennis Zhou <dennis@kernel.org> Cc: Christoph Lameter <cl@linux.com> Cc: <linux-mm@kvack.org> |
||
|
Jakub Kicinski
|
f2bb566f5c |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
tools/lib/bpf/ringbuf.c |
||
|
Jason Gunthorpe
|
5fe937862c |
interval-tree: Add a utility to iterate over spans in an interval tree
The span iterator travels over the indexes of the interval_tree, not the nodes, and classifies spans of indexes as either 'used' or 'hole'. 'used' spans are fully covered by nodes in the tree and 'hole' spans have no node intersecting the span. This is done greedily such that spans are maximally sized and every iteration step switches between used/hole. As an example a trivial allocator can be written as: for (interval_tree_span_iter_first(&span, itree, 0, ULONG_MAX); !interval_tree_span_iter_done(&span); interval_tree_span_iter_next(&span)) if (span.is_hole && span.last_hole - span.start_hole >= allocation_size - 1) return span.start_hole; With all the tricky boundary conditions handled by the library code. The following iommufd patches have several algorithms for its overlapping node interval trees that are significantly simplified with this kind of iteration primitive. As it seems generally useful, put it into lib/. Link: https://lore.kernel.org/r/3-v6-a196d26f289e+11787-iommufd_jgg@nvidia.com Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Tested-by: Nicolin Chen <nicolinc@nvidia.com> Tested-by: Yi Liu <yi.l.liu@intel.com> Tested-by: Lixiao Yang <lixiao.yang@intel.com> Tested-by: Matthew Rosato <mjrosato@linux.ibm.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
||
|
Vlastimil Babka
|
e240e53ae0 |
mm, slub: add CONFIG_SLUB_TINY
For tiny systems that have used SLOB until now, SLUB might be impractical due to its higher memory usage. To help with that, introduce an option CONFIG_SLUB_TINY that modifies SLUB to use less memory. This is done by sacrificing scalability, security and debugging features, therefore not recommended for any system with more than 16MB RAM. This commit introduces the option and uses it to set other related options in a way that reduces memory usage. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Reviewed-by: Christoph Lameter <cl@linux.com> |
||
|
Linus Torvalds
|
db3182484f |
Char/Misc driver fixes for 6.1-rc7
Here are some small driver fixes for 6.1-rc7, they include:
- build warning fix for the vdso when using new versions of grep
- iio driver fixes for reported issues
- small nvmem driver fixes
- fpga Kconfig fix
- interconnect dt binding fix
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small driver fixes for 6.1-rc7, they include:
- build warning fix for the vdso when using new versions of grep
- iio driver fixes for reported issues
- small nvmem driver fixes
- fpga Kconfig fix
- interconnect dt binding fix
All of these have been in linux-next with no reported issues"
* tag 'char-misc-6.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
lib/vdso: use "grep -E" instead of "egrep"
nvmem: lan9662-otp: Change return type of lan9662_otp_wait_flag_clear()
nvmem: rmem: Fix return value check in rmem_read()
fpga: m10bmc-sec: Fix kconfig dependencies
dt-bindings: iio: adc: Remove the property "aspeed,trim-data-valid"
iio: adc: aspeed: Remove the trim valid dts property.
iio: core: Fix entry not deleted when iio_register_sw_trigger_type() fails
iio: accel: bma400: Fix memory leak in bma400_get_steps_reg()
iio: light: rpr0521: add missing Kconfig dependencies
iio: health:
|
||
Mark Brown
|
0b21b4dc9a |
Linux 6.1-rc4
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmNoPiAeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGPmcH/2dl4Zu+ofzwziH4 MxIHeSdL62tFEtD+643hTArXLR/8YeZkt17q0vaQa0WQFC09vtYepdvAuiQIGrDm 69hXY20BIARz1bwqmGuP+gNhjFeuHVy5B9qIKV7z0HoO3Guf2BoAG14LEEBsc5SO RrZSVDRlGHnstMBx4zplWDNXOxehumwoPInFyKC8SqDg464BCeo/ErJbzwMXPdBw RPUuDh3m9iwN6BhjlbM9UhtNEbakVKw+LaTO5eYtiPValyJ40ws/wQ/SrDc/k9YA 1E1gFlUMgPwNz0uVBEO+NcRRsQHiBqrEyLDpvg5RkE2xnOJwMrm9LDY6RqwJD/w1 4UKcuAs= =ls46 -----END PGP SIGNATURE----- gpgsig -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmOBFGsACgkQJNaLcl1U h9A75wf9HTxaho6c6yJYjC5JpRccQ8JLwV1efLZE8FrbxhlOHqty7MqIOD0tuKzm FDXgEIXWSJGfAwN0PrbmeKF90adqzXPELPr7C5UAm4gTV5aONkcE9BEjzOgZJB5H ocLZswqAX96GtCOgR0l8KHEmNmYwlqhirFlHwyfuP6hh4lqSZGRraEl6wz4Nlmcs 5njf7uIbCaR6/0+OFlLJC4kVxor2mGDvDF0re7kQ1T5wb8oYVOjEbxPEZXjEkUqX avp4QUujBb3Usf3Q4lu4Z+I2WTvAUXeX+B/nbNQAGxzQUHOBFPibdex7bJLrM4LK ESDZ+TXBBT656ZbC+hpYf2tvVcZ83Q== =K+RP -----END PGP SIGNATURE----- Merge tag 'v6.1-rc4' into regulator-6.2 Linux 6.1-rc4 which should get my CI working on RPi3s again. |
||
Al Viro
|
a41dad905e |
iov_iter: saner checks for attempt to copy to/from iterator
instead of "don't do it to ITER_PIPE" check for ->data_source being false on copying from iterator. Check for !->data_source for copying to iterator, while we are at it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
||
|
Al Viro
|
c67f1fd2b2 |
csum_and_copy_to_iter(): handle ITER_DISCARD
Not hard to implement - we are not copying anything here, so csum_and_memcpy() is not usable, but calculating a checksum of source directly is trivial... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
||
|
Al Viro
|
40a86061a5 |
get rid of unlikely() on page_copy_sane() calls
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
||
Jiapeng Chong
|
b084f6cc35 |
lib/test_rhashtable: Remove set but unused variable 'insert_retries'
Variable 'insert_retries' is not effectively used in the function, so delete it. lib/test_rhashtable.c:437:18: warning: variable 'insert_retries' set but not used. Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=3242 Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
|
Greg Kroah-Hartman
|
8ac3b5cd3e |
lib/vdso: use "grep -E" instead of "egrep"
The latest version of grep claims the egrep is now obsolete so the build now contains warnings that look like: egrep: warning: egrep is obsolescent; using grep -E fix this up by moving the vdso Makefile to use "grep -E" instead. Cc: Andy Lutomirski <luto@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Link: https://lore.kernel.org/r/20220920170633.3133829-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
Zhengchao Shao
|
7610615e8c |
test_firmware: fix memory leak in test_firmware_init()
When misc_register() failed in test_firmware_init(), the memory pointed
by test_fw_config->name is not released. The memory leak information is
as follows:
unreferenced object 0xffff88810a34cb00 (size 32):
comm "insmod", pid 7952, jiffies 4294948236 (age 49.060s)
hex dump (first 32 bytes):
74 65 73 74 2d 66 69 72 6d 77 61 72 65 2e 62 69 test-firmware.bi
6e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 n...............
backtrace:
[<ffffffff81b21fcb>] __kmalloc_node_track_caller+0x4b/0xc0
[<ffffffff81affb96>] kstrndup+0x46/0xc0
[<ffffffffa0403a49>] __test_firmware_config_init+0x29/0x380 [test_firmware]
[<ffffffffa040f068>] 0xffffffffa040f068
[<ffffffff81002c41>] do_one_initcall+0x141/0x780
[<ffffffff816a72c3>] do_init_module+0x1c3/0x630
[<ffffffff816adb9e>] load_module+0x623e/0x76a0
[<ffffffff816af471>] __do_sys_finit_module+0x181/0x240
[<ffffffff89978f99>] do_syscall_64+0x39/0xb0
[<ffffffff89a0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
Fixes:
|
||
|
Kees Cook
|
9124a26401 |
kunit/fortify: Validate __alloc_size attribute results
Validate the effect of the __alloc_size attribute on allocators. If the
compiler doesn't support __builtin_dynamic_object_size(), skip the
associated tests.
(For GCC, just remove the "--make_options" line below...)
$ ./tools/testing/kunit/kunit.py run --arch x86_64 \
--kconfig_add CONFIG_FORTIFY_SOURCE=y \
--make_options LLVM=1
fortify
...
[15:16:30] ================== fortify (10 subtests) ===================
[15:16:30] [PASSED] known_sizes_test
[15:16:30] [PASSED] control_flow_split_test
[15:16:30] [PASSED] alloc_size_kmalloc_const_test
[15:16:30] [PASSED] alloc_size_kmalloc_dynamic_test
[15:16:30] [PASSED] alloc_size_vmalloc_const_test
[15:16:30] [PASSED] alloc_size_vmalloc_dynamic_test
[15:16:30] [PASSED] alloc_size_kvmalloc_const_test
[15:16:30] [PASSED] alloc_size_kvmalloc_dynamic_test
[15:16:30] [PASSED] alloc_size_devm_kmalloc_const_test
[15:16:30] [PASSED] alloc_size_devm_kmalloc_dynamic_test
[15:16:30] ===================== [PASSED] fortify =====================
[15:16:30] ============================================================
[15:16:30] Testing complete. Ran 10 tests: passed: 10
[15:16:31] Elapsed time: 8.348s total, 0.002s configuring, 6.923s building, 1.075s running
For earlier GCC prior to version 12, the dynamic tests will be skipped:
[15:18:59] ================== fortify (10 subtests) ===================
[15:18:59] [PASSED] known_sizes_test
[15:18:59] [PASSED] control_flow_split_test
[15:18:59] [PASSED] alloc_size_kmalloc_const_test
[15:18:59] [SKIPPED] alloc_size_kmalloc_dynamic_test
[15:18:59] [PASSED] alloc_size_vmalloc_const_test
[15:18:59] [SKIPPED] alloc_size_vmalloc_dynamic_test
[15:18:59] [PASSED] alloc_size_kvmalloc_const_test
[15:18:59] [SKIPPED] alloc_size_kvmalloc_dynamic_test
[15:18:59] [PASSED] alloc_size_devm_kmalloc_const_test
[15:18:59] [SKIPPED] alloc_size_devm_kmalloc_dynamic_test
[15:18:59] ===================== [PASSED] fortify =====================
[15:18:59] ============================================================
[15:18:59] Testing complete. Ran 10 tests: passed: 6, skipped: 4
[15:18:59] Elapsed time: 11.965s total, 0.002s configuring, 10.540s building, 1.068s running
Cc: David Gow <davidgow@google.com>
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
|
||
Li Hua
|
de3db3f883 |
test_kprobes: fix implicit declaration error of test_kprobes
If KPROBES_SANITY_TEST and ARCH_CORRECT_STACKTRACE_ON_KRETPROBE is enabled, but
STACKTRACE is not set. Build failed as below:
lib/test_kprobes.c: In function `stacktrace_return_handler':
lib/test_kprobes.c:228:8: error: implicit declaration of function `stack_trace_save'; did you mean `stacktrace_driver'? [-Werror=implicit-function-declaration]
ret = stack_trace_save(stack_buf, STACK_BUF_SIZE, 0);
^~~~~~~~~~~~~~~~
stacktrace_driver
cc1: all warnings being treated as errors
scripts/Makefile.build:250: recipe for target 'lib/test_kprobes.o' failed
make[2]: *** [lib/test_kprobes.o] Error 1
To fix this error, Select STACKTRACE if ARCH_CORRECT_STACKTRACE_ON_KRETPROBE is enabled.
Link: https://lkml.kernel.org/r/20221121030620.63181-1-hucool.lihua@huawei.com
Fixes:
|
||
Qi Zheng
|
ea4452de2a |
mm: fix unexpected changes to {failslab|fail_page_alloc}.attr
When we specify __GFP_NOWARN, we only expect that no warnings will be
issued for current caller. But in the __should_failslab() and
__should_fail_alloc_page(), the local GFP flags alter the global
{failslab|fail_page_alloc}.attr, which is persistent and shared by all
tasks. This is not what we expected, let's fix it.
[akpm@linux-foundation.org: unexport should_fail_ex()]
Link: https://lkml.kernel.org/r/20221118100011.2634-1-zhengqi.arch@bytedance.com
Fixes:
|
||
Joel Colledge
|
2cd10a496a |
lru_cache: remove unused lc_private, lc_set, lc_index_of
Signed-off-by: Joel Colledge <joel.colledge@linbit.com> Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com> Link: https://lore.kernel.org/r/20221122134301.69258-4-christoph.boehmwalder@linbit.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
Christoph Böhmwalder
|
9933438430 |
lru_cache: remove compiled out code
Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com> Link: https://lore.kernel.org/r/20221122134301.69258-3-christoph.boehmwalder@linbit.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
Lars Ellenberg
|
f2d03d8961 |
lru_cache: use atomic operations when accessing lc->flags, always
Or, depending on the way locking is implemented at the call sites, some updates could be lost (has not been observed). Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com> Link: https://lore.kernel.org/r/20221122134301.69258-2-christoph.boehmwalder@linbit.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
|
Greg Kroah-Hartman
|
542aa24646 |
kobject: make kobject_namespace take a const *
kobject_namespace() should take a const *kobject as it does not modify the kobject passed to it. Change that, and the functions kobj_child_ns_ops() and kobj_ns_ops() needed to also be changed to const *. Acked-by: Rafael J. Wysocki <rafael@kernel.org> Link: https://lore.kernel.org/r/20221121094649.1556002-2-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Greg Kroah-Hartman
|
02a476d932 |
kobject: make kobject_get_ownership() take a constant kobject *
The call, kobject_get_ownership(), does not modify the kobject passed into it, so make it const. This propagates down into the kobj_type function callbacks so make the kobject passed into them also const, ensuring that nothing in the kobject is being changed here. This helps make it more obvious what calls and callbacks do, and do not, modify structures passed to them. Cc: Trond Myklebust <trond.myklebust@hammerspace.com> Cc: Anna Schumaker <anna@kernel.org> Cc: Roopa Prabhu <roopa@nvidia.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: Jeff Layton <jlayton@kernel.org> Cc: linux-nfs@vger.kernel.org Cc: bridge@lists.linux-foundation.org Cc: netdev@vger.kernel.org Acked-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Rafael J. Wysocki <rafael@kernel.org> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://lore.kernel.org/r/20221121094649.1556002-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Jason A. Donenfeld
|
898f1e5c37 |
vsprintf: initialize siphash key using notifier
Rather than polling every second, use the new notifier to do this at exactly the right moment. Reviewed-by: Petr Mladek <pmladek@suse.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> |
||
|
Ingo Molnar
|
0ce096db71 |
Linux 6.1-rc6
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmN6wAgeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG0EYH/3/RO90NbrFItraN Lzr+d3VdbGjTu8xd1M+PRTmwh3zxLpB+Jwqr0T0A2gzL9B/D+AUPUJdrCVbv9DqS FLJAVqoeV20dNBAHSffOOLPsgCZ+Eu+LzlNN7Iqde0e8cyZICFMNktitui84Xm/i 1NgFVgz9OZ6+aieYvUj3FrFq0p8GTIaC/oybDZrxYKcO8ZzKVMJ11swRw10wwq0g qOOECvV3w7wlQ8upQZkzFxItKFc7EexZI6R4elXeGSJJ9Hlc092dv/zsKB9dwV+k WcwkJrZRoezYXzgGBFxUcQtzi+ethjrPjuJuM1rYLUSIcfIW/0lkaSLgRoBu8D+I 1GfXkXs= =gt6P -----END PGP SIGNATURE----- Merge tag 'v6.1-rc6' into x86/core, to resolve conflicts Resolve conflicts between these commits in arch/x86/kernel/asm-offsets.c: # upstream: |
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Liam Beguin
|
d28a1de5d1 |
math64: favor kernel-doc from header files
Fix the kernel-doc markings for div64 functions to point to the header file instead of the lib/ directory. This avoids having implementation specific comments in generic documentation. Furthermore, given that some kernel-doc comments are identical, drop them from lib/math64 and only keep there comments that add implementation details. Signed-off-by: Liam Beguin <liambeguin@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20221118182309.3824530-1-liambeguin@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
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Sai Prakash Ranjan
|
5e5ff73c2e |
asm-generic/io: Add _RET_IP_ to MMIO trace for more accurate debug info
Due to compiler optimizations like inlining, there are cases where
MMIO traces using _THIS_IP_ for caller information might not be
sufficient to provide accurate debug traces.
1) With optimizations (Seen with GCC):
In this case, _THIS_IP_ works fine and prints the caller information
since it will be inlined into the caller and we get the debug traces
on who made the MMIO access, for ex:
rwmmio_read: qcom_smmu_tlb_sync+0xe0/0x1b0 width=32 addr=0xffff8000087447f4
rwmmio_post_read: qcom_smmu_tlb_sync+0xe0/0x1b0 width=32 val=0x0 addr=0xffff8000087447f4
2) Without optimizations (Seen with Clang):
_THIS_IP_ will not be sufficient in this case as it will print only
the MMIO accessors itself which is of not much use since it is not
inlined as below for example:
rwmmio_read: readl+0x4/0x80 width=32 addr=0xffff8000087447f4
rwmmio_post_read: readl+0x48/0x80 width=32 val=0x4 addr=0xffff8000087447f4
So in order to handle this second case as well irrespective of the compiler
optimizations, add _RET_IP_ to MMIO trace to make it provide more accurate
debug information in all these scenarios.
Before:
rwmmio_read: readl+0x4/0x80 width=32 addr=0xffff8000087447f4
rwmmio_post_read: readl+0x48/0x80 width=32 val=0x4 addr=0xffff8000087447f4
After:
rwmmio_read: qcom_smmu_tlb_sync+0xe0/0x1b0 -> readl+0x4/0x80 width=32 addr=0xffff8000087447f4
rwmmio_post_read: qcom_smmu_tlb_sync+0xe0/0x1b0 -> readl+0x4/0x80 width=32 val=0x0 addr=0xffff8000087447f4
Fixes:
|
||
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Greg Kroah-Hartman
|
05df6ab8eb |
Merge 6.1-rc6 into driver-core-next
We need the kernfs changes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
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Greg Kroah-Hartman
|
210a671cc3 |
Linux 6.1-rc6
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmN6wAgeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG0EYH/3/RO90NbrFItraN Lzr+d3VdbGjTu8xd1M+PRTmwh3zxLpB+Jwqr0T0A2gzL9B/D+AUPUJdrCVbv9DqS FLJAVqoeV20dNBAHSffOOLPsgCZ+Eu+LzlNN7Iqde0e8cyZICFMNktitui84Xm/i 1NgFVgz9OZ6+aieYvUj3FrFq0p8GTIaC/oybDZrxYKcO8ZzKVMJ11swRw10wwq0g qOOECvV3w7wlQ8upQZkzFxItKFc7EexZI6R4elXeGSJJ9Hlc092dv/zsKB9dwV+k WcwkJrZRoezYXzgGBFxUcQtzi+ethjrPjuJuM1rYLUSIcfIW/0lkaSLgRoBu8D+I 1GfXkXs= =gt6P -----END PGP SIGNATURE----- Merge 6.1-rc6 into char-misc-next We need the char/misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
Nick Desaulniers
|
9f8fe64779 |
Makefile.debug: support for -gz=zstd
Make DEBUG_INFO_COMPRESSED a choice; DEBUG_INFO_COMPRESSED_NONE is the default, DEBUG_INFO_COMPRESSED_ZLIB uses zlib, DEBUG_INFO_COMPRESSED_ZSTD uses zstd. This renames the existing KConfig option DEBUG_INFO_COMPRESSED to DEBUG_INFO_COMPRESSED_ZLIB so users upgrading may need to reset the new Kconfigs. Some quick N=1 measurements with du, /usr/bin/time -v, and bloaty: clang-16, x86_64 defconfig plus CONFIG_DEBUG_INFO=y CONFIG_DEBUG_INFO_COMPRESSED_NONE=y: Elapsed (wall clock) time (h:mm:ss or m:ss): 0:55.43 488M vmlinux 27.6% 136Mi 0.0% 0 .debug_info 6.1% 30.2Mi 0.0% 0 .debug_str_offsets 3.5% 17.2Mi 0.0% 0 .debug_line 3.3% 16.3Mi 0.0% 0 .debug_loclists 0.9% 4.62Mi 0.0% 0 .debug_str clang-16, x86_64 defconfig plus CONFIG_DEBUG_INFO=y CONFIG_DEBUG_INFO_COMPRESSED_ZLIB=y: Elapsed (wall clock) time (h:mm:ss or m:ss): 1:00.35 385M vmlinux 21.8% 85.4Mi 0.0% 0 .debug_info 2.1% 8.26Mi 0.0% 0 .debug_str_offsets 2.1% 8.24Mi 0.0% 0 .debug_loclists 1.9% 7.48Mi 0.0% 0 .debug_line 0.5% 1.94Mi 0.0% 0 .debug_str clang-16, x86_64 defconfig plus CONFIG_DEBUG_INFO=y CONFIG_DEBUG_INFO_COMPRESSED_ZSTD=y: Elapsed (wall clock) time (h:mm:ss or m:ss): 0:59.69 373M vmlinux 21.4% 81.4Mi 0.0% 0 .debug_info 2.3% 8.85Mi 0.0% 0 .debug_loclists 1.5% 5.71Mi 0.0% 0 .debug_line 0.5% 1.95Mi 0.0% 0 .debug_str_offsets 0.4% 1.62Mi 0.0% 0 .debug_str That's only a 3.11% overall binary size savings over zlib, but at no performance regression. Link: https://maskray.me/blog/2022-09-09-zstd-compressed-debug-sections Link: https://maskray.me/blog/2022-01-23-compressed-debug-sections Suggested-by: Sedat Dilek (DHL Supply Chain) <sedat.dilek@dhl.com> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> |
||
|
Jason A. Donenfeld
|
0445d1bae1 |
lib: assume char is unsigned
Now that we use -funsigned-char, there's no need for this kind of ifdef. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> |
||
Gaosheng Cui
|
6fe888c4d2 |
lib/fonts: fix undefined behavior in bit shift for get_default_font
Shifting signed 32-bit value by 31 bits is undefined, so changing
significant bit to unsigned. The UBSAN warning calltrace like below:
UBSAN: shift-out-of-bounds in lib/fonts/fonts.c:139:20
left shift of 1 by 31 places cannot be represented in type 'int'
<TASK>
dump_stack_lvl+0x7d/0xa5
dump_stack+0x15/0x1b
ubsan_epilogue+0xe/0x4e
__ubsan_handle_shift_out_of_bounds+0x1e7/0x20c
get_default_font+0x1c7/0x1f0
fbcon_startup+0x347/0x3a0
do_take_over_console+0xce/0x270
do_fbcon_takeover+0xa1/0x170
do_fb_registered+0x2a8/0x340
fbcon_fb_registered+0x47/0xe0
register_framebuffer+0x294/0x4a0
__drm_fb_helper_initial_config_and_unlock+0x43c/0x880 [drm_kms_helper]
drm_fb_helper_initial_config+0x52/0x80 [drm_kms_helper]
drm_fbdev_client_hotplug+0x156/0x1b0 [drm_kms_helper]
drm_fbdev_generic_setup+0xfc/0x290 [drm_kms_helper]
bochs_pci_probe+0x6ca/0x772 [bochs]
local_pci_probe+0x4d/0xb0
pci_device_probe+0x119/0x320
really_probe+0x181/0x550
__driver_probe_device+0xc6/0x220
driver_probe_device+0x32/0x100
__driver_attach+0x195/0x200
bus_for_each_dev+0xbb/0x120
driver_attach+0x27/0x30
bus_add_driver+0x22e/0x2f0
driver_register+0xa9/0x190
__pci_register_driver+0x90/0xa0
bochs_pci_driver_init+0x52/0x1000 [bochs]
do_one_initcall+0x76/0x430
do_init_module+0x61/0x28a
load_module+0x1f82/0x2e50
__do_sys_finit_module+0xf8/0x190
__x64_sys_finit_module+0x23/0x30
do_syscall_64+0x58/0x80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
</TASK>
Link: https://lkml.kernel.org/r/20221031113829.4183153-1-cuigaosheng1@huawei.com
Fixes:
|
||
Uros Bizjak
|
6a6d7602ca |
llist: avoid extra memory read in llist_add_batch
try_cmpxchg implicitly assigns old head->first value to "first" when cmpxchg fails. There is no need to re-read the value in the loop. Link: https://lkml.kernel.org/r/20221017145226.4044-1-ubizjak@gmail.com Signed-off-by: Uros Bizjak <ubizjak@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
Colin Ian King
|
1aae9056b1 |
lib/oid_registry.c: remove redundant assignment to variable num
The variable num is being assigned a value that is never read, it is being re-assigned a new value in both paths if an if-statement. The assignment is redundant and can be removed. Cleans up clang scan build warning: lib/oid_registry.c:149:3: warning: Value stored to 'num' is never read [deadcode.DeadStores] Link: https://lkml.kernel.org/r/20221017214556.863357-1-colin.i.king@gmail.com Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
||
|
Jakub Kicinski
|
224b744abf |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
include/linux/bpf.h |
||
|
Jason A. Donenfeld
|
e8a533cbeb |
treewide: use get_random_u32_inclusive() when possible
These cases were done with this Coccinelle: @@ expression H; expression L; @@ - (get_random_u32_below(H) + L) + get_random_u32_inclusive(L, H + L - 1) @@ expression H; expression L; expression E; @@ get_random_u32_inclusive(L, H - + E - - E ) @@ expression H; expression L; expression E; @@ get_random_u32_inclusive(L, H - - E - + E ) @@ expression H; expression L; expression E; expression F; @@ get_random_u32_inclusive(L, H - - E + F - + E ) @@ expression H; expression L; expression E; expression F; @@ get_random_u32_inclusive(L, H - + E + F - - E ) And then subsequently cleaned up by hand, with several automatic cases rejected if it didn't make sense contextually. Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> # for infiniband Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> |
||
|
Jason A. Donenfeld
|
d247aabd39 |
treewide: use get_random_u32_{above,below}() instead of manual loop
These cases were done with this Coccinelle:
@@
expression E;
identifier I;
@@
- do {
... when != I
- I = get_random_u32();
... when != I
- } while (I > E);
+ I = get_random_u32_below(E + 1);
@@
expression E;
identifier I;
@@
- do {
... when != I
- I = get_random_u32();
... when != I
- } while (I >= E);
+ I = get_random_u32_below(E);
@@
expression E;
identifier I;
@@
- do {
... when != I
- I = get_random_u32();
... when != I
- } while (I < E);
+ I = get_random_u32_above(E - 1);
@@
expression E;
identifier I;
@@
- do {
... when != I
- I = get_random_u32();
... when != I
- } while (I <= E);
+ I = get_random_u32_above(E);
@@
identifier I;
@@
- do {
... when != I
- I = get_random_u32();
... when != I
- } while (!I);
+ I = get_random_u32_above(0);
@@
identifier I;
@@
- do {
... when != I
- I = get_random_u32();
... when != I
- } while (I == 0);
+ I = get_random_u32_above(0);
@@
expression E;
@@
- E + 1 + get_random_u32_below(U32_MAX - E)
+ get_random_u32_above(E)
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
|
||
|
Jason A. Donenfeld
|
8032bf1233 |
treewide: use get_random_u32_below() instead of deprecated function
This is a simple mechanical transformation done by: @@ expression E; @@ - prandom_u32_max + get_random_u32_below (E) Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Darrick J. Wong <djwong@kernel.org> # for xfs Reviewed-by: SeongJae Park <sj@kernel.org> # for damon Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> # for infiniband Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> # for arm Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # for mmc Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> |