With recent changes necessitating mmap_lock to be held for write while
expanding a stack, per-VMA locks should follow the same rules and be
write-locked to prevent page faults into the VMA being expanded. Add
the necessary locking.
Cc: stable@vger.kernel.org
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A few late arriving patches that missed the initial pull request.
It's mostly bug fixes (the dt-bindings is a fix for the initial pull).
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"A few late arriving patches that missed the initial pull request. It's
mostly bug fixes (the dt-bindings is a fix for the initial pull)"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: core: Remove unused function declaration
scsi: target: docs: Remove tcm_mod_builder.py
scsi: target: iblock: Quiet bool conversion warning with pr_preempt use
scsi: dt-bindings: ufs: qcom: Fix ICE phandle
scsi: core: Simplify scsi_cdl_check_cmd()
scsi: isci: Fix comment typo
scsi: smartpqi: Replace one-element arrays with flexible-array members
scsi: target: tcmu: Replace strlcpy() with strscpy()
scsi: ncr53c8xx: Replace strlcpy() with strscpy()
scsi: lpfc: Fix lpfc_name struct packing
* xiic patch should have been in part 1 but slipped through
* mpc patch fixes a build regression from part 1
* nomadik is a fix which needed a rebase after part 1
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Merge tag 'i2c-for-6.5-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull more i2c updates from Wolfram Sang:
- xiic patch should have been in the original pull but slipped through
- mpc patch fixes a build regression
- nomadik cleanup
* tag 'i2c-for-6.5-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: mpc: Drop unused variable
i2c: nomadik: Remove a useless call in the remove function
i2c: xiic: Don't try to handle more interrupt events after error
The debugfs_create_dir function returns ERR_PTR in case of error, and the
only correct way to check if an error occurred is 'IS_ERR' inline function.
This patch will replace the null-comparison with IS_ERR.
Signed-off-by: Anup Sharma <anupnewsmail@gmail.com>
Suggested-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Build:
- Allow to generate vmlinux.h from BTF using `make GEN_VMLINUX_H=1`
and skip if the vmlinux has no BTF.
- Replace deprecated clang -target xxx option by --target=xxx.
perf record:
- Print event attributes with well known type and config symbols in the
debug output like below:
# perf record -e cycles,cpu-clock -C0 -vv true
<SNIP>
------------------------------------------------------------
perf_event_attr:
type 0 (PERF_TYPE_HARDWARE)
size 136
config 0 (PERF_COUNT_HW_CPU_CYCLES)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 5
------------------------------------------------------------
perf_event_attr:
type 1 (PERF_TYPE_SOFTWARE)
size 136
config 0 (PERF_COUNT_SW_CPU_CLOCK)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
- Update AMD IBS event error message since it now support per-process
profiling but no priviledge filters.
$ sudo perf record -e ibs_op//k -C 0
Error:
AMD IBS doesn't support privilege filtering. Try again without
the privilege modifiers (like 'k') at the end.
perf lock contention:
- Support CSV style output using -x option
$ sudo perf lock con -ab -x, sleep 1
# output: contended, total wait, max wait, avg wait, type, caller
19, 194232, 21415, 10222, spinlock, process_one_work+0x1f0
15, 162748, 23843, 10849, rwsem:R, do_user_addr_fault+0x40e
4, 86740, 23415, 21685, rwlock:R, ep_poll_callback+0x2d
1, 84281, 84281, 84281, mutex, iwl_mvm_async_handlers_wk+0x135
8, 67608, 27404, 8451, spinlock, __queue_work+0x174
3, 58616, 31125, 19538, rwsem:W, do_mprotect_pkey+0xff
3, 52953, 21172, 17651, rwlock:W, do_epoll_wait+0x248
2, 30324, 19704, 15162, rwsem:R, do_madvise+0x3ad
1, 24619, 24619, 24619, spinlock, rcu_core+0xd4
- Add --output option to save the data to a file not to be interfered
by other debug messages.
Test:
- Fix event parsing test on ARM where there's no raw PMU nor supports
PERF_PMU_CAP_EXTENDED_HW_TYPE.
- Update the lock contention test case for CSV output.
- Fix a segfault in the daemon command test.
Vendor events (JSON):
- Add has_event() to check if the given event is available on system
at runtime. On Intel machines, some transaction events may not be
present when TSC extensions are disabled.
- Update Intel event metrics.
Misc:
- Sort symbols by name using an external array of pointers instead of
a rbtree node in the symbol. This will save 16-bytes or 24-bytes
per symbol whether the sorting is actually requested or not.
- Fix unwinding DWARF callstacks using libdw when --symfs option is
used.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Merge tag 'perf-tools-for-v6.5-2-2023-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next
Pull more perf tools updates from Namhyung Kim:
"These are remaining changes and fixes for this cycle.
Build:
- Allow generating vmlinux.h from BTF using `make GEN_VMLINUX_H=1`
and skip if the vmlinux has no BTF.
- Replace deprecated clang -target xxx option by --target=xxx.
perf record:
- Print event attributes with well known type and config symbols in
the debug output like below:
# perf record -e cycles,cpu-clock -C0 -vv true
<SNIP>
------------------------------------------------------------
perf_event_attr:
type 0 (PERF_TYPE_HARDWARE)
size 136
config 0 (PERF_COUNT_HW_CPU_CYCLES)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
------------------------------------------------------------
sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8 = 5
------------------------------------------------------------
perf_event_attr:
type 1 (PERF_TYPE_SOFTWARE)
size 136
config 0 (PERF_COUNT_SW_CPU_CLOCK)
{ sample_period, sample_freq } 4000
sample_type IP|TID|TIME|CPU|PERIOD|IDENTIFIER
read_format ID
disabled 1
inherit 1
freq 1
sample_id_all 1
exclude_guest 1
- Update AMD IBS event error message since it now support per-process
profiling but no priviledge filters.
$ sudo perf record -e ibs_op//k -C 0
Error:
AMD IBS doesn't support privilege filtering. Try again without
the privilege modifiers (like 'k') at the end.
perf lock contention:
- Support CSV style output using -x option
$ sudo perf lock con -ab -x, sleep 1
# output: contended, total wait, max wait, avg wait, type, caller
19, 194232, 21415, 10222, spinlock, process_one_work+0x1f0
15, 162748, 23843, 10849, rwsem:R, do_user_addr_fault+0x40e
4, 86740, 23415, 21685, rwlock:R, ep_poll_callback+0x2d
1, 84281, 84281, 84281, mutex, iwl_mvm_async_handlers_wk+0x135
8, 67608, 27404, 8451, spinlock, __queue_work+0x174
3, 58616, 31125, 19538, rwsem:W, do_mprotect_pkey+0xff
3, 52953, 21172, 17651, rwlock:W, do_epoll_wait+0x248
2, 30324, 19704, 15162, rwsem:R, do_madvise+0x3ad
1, 24619, 24619, 24619, spinlock, rcu_core+0xd4
- Add --output option to save the data to a file not to be interfered
by other debug messages.
Test:
- Fix event parsing test on ARM where there's no raw PMU nor supports
PERF_PMU_CAP_EXTENDED_HW_TYPE.
- Update the lock contention test case for CSV output.
- Fix a segfault in the daemon command test.
Vendor events (JSON):
- Add has_event() to check if the given event is available on system
at runtime. On Intel machines, some transaction events may not be
present when TSC extensions are disabled.
- Update Intel event metrics.
Misc:
- Sort symbols by name using an external array of pointers instead of
a rbtree node in the symbol. This will save 16-bytes or 24-bytes
per symbol whether the sorting is actually requested or not.
- Fix unwinding DWARF callstacks using libdw when --symfs option is
used"
* tag 'perf-tools-for-v6.5-2-2023-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next: (38 commits)
perf test: Fix event parsing test when PERF_PMU_CAP_EXTENDED_HW_TYPE isn't supported.
perf test: Fix event parsing test on Arm
perf evsel amd: Fix IBS error message
perf: unwind: Fix symfs with libdw
perf symbol: Fix uninitialized return value in symbols__find_by_name()
perf test: Test perf lock contention CSV output
perf lock contention: Add --output option
perf lock contention: Add -x option for CSV style output
perf lock: Remove stale comments
perf vendor events intel: Update tigerlake to 1.13
perf vendor events intel: Update skylakex to 1.31
perf vendor events intel: Update skylake to 57
perf vendor events intel: Update sapphirerapids to 1.14
perf vendor events intel: Update icelakex to 1.21
perf vendor events intel: Update icelake to 1.19
perf vendor events intel: Update cascadelakex to 1.19
perf vendor events intel: Update meteorlake to 1.03
perf vendor events intel: Add rocketlake events/metrics
perf vendor metrics intel: Make transaction metrics conditional
perf jevents: Support for has_event function
...
Fixes for different bitmap pieces:
- lib/test_bitmap: increment failure counter properly
The tests that don't use expect_eq() macro to determine that a test is
failured must increment failed_tests explicitly.
- lib/bitmap: drop optimization of bitmap_{from,to}_arr64
bitmap_{from,to}_arr64() optimization is overly optimistic on 32-bit LE
architectures when it's wired to bitmap_copy_clear_tail().
- nodemask: Drop duplicate check in for_each_node_mask()
As the return value type of first_node() became unsigned, the node >= 0
became unnecessary.
- cpumask: fix function description kernel-doc notation
- MAINTAINERS: Add bits.h to the BITMAP API record
- MAINTAINERS: Add bitfield.h to the BITMAP API record
Add linux/bits.h and linux/bitfield.h for visibility
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Merge tag 'bitmap-6.5-rc1' of https://github.com/norov/linux
Pull bitmap updates from Yury Norov:
"Fixes for different bitmap pieces:
- lib/test_bitmap: increment failure counter properly
The tests that don't use expect_eq() macro to determine that a test
is failured must increment failed_tests explicitly.
- lib/bitmap: drop optimization of bitmap_{from,to}_arr64
bitmap_{from,to}_arr64() optimization is overly optimistic
on 32-bit LE architectures when it's wired to
bitmap_copy_clear_tail().
- nodemask: Drop duplicate check in for_each_node_mask()
As the return value type of first_node() became unsigned, the node
>= 0 became unnecessary.
- cpumask: fix function description kernel-doc notation
- MAINTAINERS: Add bits.h and bitfield.h to the BITMAP API record
Add linux/bits.h and linux/bitfield.h for visibility"
* tag 'bitmap-6.5-rc1' of https://github.com/norov/linux:
MAINTAINERS: Add bitfield.h to the BITMAP API record
MAINTAINERS: Add bits.h to the BITMAP API record
cpumask: fix function description kernel-doc notation
nodemask: Drop duplicate check in for_each_node_mask()
lib/bitmap: drop optimization of bitmap_{from,to}_arr64
lib/test_bitmap: increment failure counter properly
The Smatch static checker reports the following warnings:
lib/dhry_run.c:38 dhry_benchmark() warn: sleeping in atomic context
lib/dhry_run.c:43 dhry_benchmark() warn: sleeping in atomic context
Indeed, dhry() does sleeping allocations inside the non-preemptable
section delimited by get_cpu()/put_cpu().
Fix this by using atomic allocations instead.
Add error handling, as atomic these allocations may fail.
Link: https://lkml.kernel.org/r/bac6d517818a7cd8efe217c1ad649fffab9cc371.1688568764.git.geert+renesas@glider.be
Fixes: 13684e966d ("lib: dhry: fix unstable smp_processor_id(_) usage")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/0469eb3a-02eb-4b41-b189-de20b931fa56@moroto.mountain
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Commit 946fa0dbf2 ("mm/slub: extend redzone check to extra allocated
kmalloc space than requested") added precise kmalloc redzone poisoning to
the slub_debug functionality.
However, this commit didn't account for HW_TAGS KASAN fully initializing
the object via its built-in memory initialization feature. Even though
HW_TAGS KASAN memory initialization contains special memory initialization
handling for when slub_debug is enabled, it does not account for in-object
slub_debug redzones. As a result, HW_TAGS KASAN can overwrite these
redzones and cause false-positive slub_debug reports.
To fix the issue, avoid HW_TAGS KASAN memory initialization when
slub_debug is enabled altogether. Implement this by moving the
__slub_debug_enabled check to slab_post_alloc_hook. Common slab code
seems like a more appropriate place for a slub_debug check anyway.
Link: https://lkml.kernel.org/r/678ac92ab790dba9198f9ca14f405651b97c8502.1688561016.git.andreyknvl@google.com
Fixes: 946fa0dbf2 ("mm/slub: extend redzone check to extra allocated kmalloc space than requested")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reported-by: Will Deacon <will@kernel.org>
Acked-by: Marco Elver <elver@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Feng Tang <feng.tang@intel.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: kasan-dev@googlegroups.com
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Commit bb6e04a173 ("kasan: use internal prototypes matching gcc-13
builtins") introduced a bug into the memory_is_poisoned_n implementation:
it effectively removed the cast to a signed integer type after applying
KASAN_GRANULE_MASK.
As a result, KASAN started failing to properly check memset, memcpy, and
other similar functions.
Fix the bug by adding the cast back (through an additional signed integer
variable to make the code more readable).
Link: https://lkml.kernel.org/r/8c9e0251c2b8b81016255709d4ec42942dcaf018.1688431866.git.andreyknvl@google.com
Fixes: bb6e04a173 ("kasan: use internal prototypes matching gcc-13 builtins")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
I am going to lose my vrull.eu address at the end of july, and while
adding it to mailmap I also realised that there are more old addresses
from me dangling, so update .mailmap for all of them.
Link: https://lkml.kernel.org/r/20230704163919.1136784-3-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "Update .mailmap for my work address and fix manpage".
While updating mailmap for the going-away address, I also found that on
current systems the manpage linked from the header comment changed.
And in fact it looks like the git mailmap feature got its own manpage.
This patch (of 2):
On recent systems the git-shortlog manpage only tells people to
See gitmailmap(5)
So instead of sending people on a scavenger hunt, put that info into the
header directly. Though keep the old reference around for older systems.
Link: https://lkml.kernel.org/r/20230704163919.1136784-1-heiko@sntech.de
Link: https://lkml.kernel.org/r/20230704163919.1136784-2-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
commit dd0ff4d12d ("bootmem: remove the vmemmap pages from kmemleak in
put_page_bootmem") fix an overlaps existing problem of kmemleak. But the
problem still existed when HAVE_BOOTMEM_INFO_NODE is disabled, because in
this case, free_bootmem_page() will call free_reserved_page() directly.
Fix the problem by adding kmemleak_free_part() in free_bootmem_page() when
HAVE_BOOTMEM_INFO_NODE is disabled.
Link: https://lkml.kernel.org/r/20230704101942.2819426-1-liushixin2@huawei.com
Fixes: f41f2ed43c ("mm: hugetlb: free the vmemmap pages associated with each HugeTLB page")
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Acked-by: Muchun Song <songmuchun@bytedance.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Add linux-next info to MAINTAINERS for ease of finding this data.
Link: https://lkml.kernel.org/r/20230704054410.12527-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
nr_to_write is a count of pages, so we need to decrease it by the number
of pages in the folio we just wrote, not by 1. Most callers specify
either LONG_MAX or 1, so are unaffected, but writeback_sb_inodes() might
end up writing 512x as many pages as it asked for.
Dave added:
: XFS is the only filesystem this would affect, right? AFAIA, nothing
: else enables large folios and uses writeback through
: write_cache_pages() at this point...
:
: In which case, I'd be surprised if much difference, if any, gets
: noticed by anyone.
Link: https://lkml.kernel.org/r/20230628185548.981888-1-willy@infradead.org
Fixes: 793917d997 ("mm/readahead: Add large folio readahead")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Dave Chinner <david@fromorbit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Commit c145e0b47c ("mm: streamline COW logic in do_swap_page()") moved
the call to swap_free() before the call to set_pte_at(), which meant that
the MTE tags could end up being freed before set_pte_at() had a chance to
restore them. Fix it by adding a call to the arch_swap_restore() hook
before the call to swap_free().
Link: https://lkml.kernel.org/r/20230523004312.1807357-2-pcc@google.com
Link: https://linux-review.googlesource.com/id/I6470efa669e8bd2f841049b8c61020c510678965
Fixes: c145e0b47c ("mm: streamline COW logic in do_swap_page()")
Signed-off-by: Peter Collingbourne <pcc@google.com>
Reported-by: Qun-wei Lin <Qun-wei.Lin@mediatek.com>
Closes: https://lore.kernel.org/all/5050805753ac469e8d727c797c2218a9d780d434.camel@mediatek.com/
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: "Huang, Ying" <ying.huang@intel.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@vger.kernel.org> [6.1+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Migration replaces the page in the mapping before copying the contents and
the flags over from the old page, so check that the page in the page cache
is really up to date before using it. Without this, stressing squashfs
reads with parallel compaction sometimes results in squashfs reporting
data corruption.
Link: https://lkml.kernel.org/r/20230629-squashfs-cache-migration-v1-1-d50ebe55099d@axis.com
Fixes: e994f5b677 ("squashfs: cache partial compressed blocks")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Phillip Lougher <phillip@squashfs.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The following crash happens for me when running the -mm selftests (below).
Specifically, it happens while running the uffd-stress subtests:
kernel BUG at mm/hugetlb.c:7249!
invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
CPU: 0 PID: 3238 Comm: uffd-stress Not tainted 6.4.0-hubbard-github+ #109
Hardware name: ASUS X299-A/PRIME X299-A, BIOS 1503 08/03/2018
RIP: 0010:huge_pte_alloc+0x12c/0x1a0
...
Call Trace:
<TASK>
? __die_body+0x63/0xb0
? die+0x9f/0xc0
? do_trap+0xab/0x180
? huge_pte_alloc+0x12c/0x1a0
? do_error_trap+0xc6/0x110
? huge_pte_alloc+0x12c/0x1a0
? handle_invalid_op+0x2c/0x40
? huge_pte_alloc+0x12c/0x1a0
? exc_invalid_op+0x33/0x50
? asm_exc_invalid_op+0x16/0x20
? __pfx_put_prev_task_idle+0x10/0x10
? huge_pte_alloc+0x12c/0x1a0
hugetlb_fault+0x1a3/0x1120
? finish_task_switch+0xb3/0x2a0
? lock_is_held_type+0xdb/0x150
handle_mm_fault+0xb8a/0xd40
? find_vma+0x5d/0xa0
do_user_addr_fault+0x257/0x5d0
exc_page_fault+0x7b/0x1f0
asm_exc_page_fault+0x22/0x30
That happens because a BUG() statement in huge_pte_alloc() attempts to
check that a pte, if present, is a hugetlb pte, but it does so in a
non-lockless-safe manner that leads to a false BUG() report.
We got here due to a couple of bugs, each of which by itself was not quite
enough to cause a problem:
First of all, before commit c33c794828f2("mm: ptep_get() conversion"), the
BUG() statement in huge_pte_alloc() was itself fragile: it relied upon
compiler behavior to only read the pte once, despite using it twice in the
same conditional.
Next, commit c33c794828 ("mm: ptep_get() conversion") broke that
delicate situation, by causing all direct pte reads to be done via
READ_ONCE(). And so READ_ONCE() got called twice within the same BUG()
conditional, leading to comparing (potentially, occasionally) different
versions of the pte, and thus to false BUG() reports.
Fix this by taking a single snapshot of the pte before using it in the
BUG conditional.
Now, that commit is only partially to blame here but, people doing
bisections will invariably land there, so this will help them find a fix
for a real crash. And also, the previous behavior was unlikely to ever
expose this bug--it was fragile, yet not actually broken.
So that's why I chose this commit for the Fixes tag, rather than the
commit that created the original BUG() statement.
Link: https://lkml.kernel.org/r/20230701010442.2041858-1-jhubbard@nvidia.com
Fixes: c33c794828 ("mm: ptep_get() conversion")
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: James Houghton <jthoughton@google.com>
Acked-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Airlie <airlied@gmail.com>
Cc: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: SeongJae Park <sj@kernel.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The ocfs2-devel mailing list has been migrated to the kernel.org
infrastructure, update all related documentation pointers to reflect the
change.
Link: https://lkml.kernel.org/r/20230628013437.47030-3-ailiop@suse.com
Signed-off-by: Anthony Iliopoulos <ailiop@suse.com>
Acked-by: Joseph Qi <jiangqi903@gmail.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Mark Fasheh <mark@fasheh.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The ocfs2-devel mailing list has been migrated to the kernel.org
infrastructure, update the related entry to reflect the change.
Link: https://lkml.kernel.org/r/20230628013437.47030-2-ailiop@suse.com
Signed-off-by: Anthony Iliopoulos <ailiop@suse.com>
Acked-by: Joseph Qi <jiangqi903@gmail.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "Avoid memory corruption caused by per-VMA locks", v4.
A memory corruption was reported in [1] with bisection pointing to the
patch [2] enabling per-VMA locks for x86. Based on the reproducer
provided in [1] we suspect this is caused by the lack of VMA locking while
forking a child process.
Patch 1/2 in the series implements proper VMA locking during fork. I
tested the fix locally using the reproducer and was unable to reproduce
the memory corruption problem.
This fix can potentially regress some fork-heavy workloads. Kernel build
time did not show noticeable regression on a 56-core machine while a
stress test mapping 10000 VMAs and forking 5000 times in a tight loop
shows ~7% regression. If such fork time regression is unacceptable,
disabling CONFIG_PER_VMA_LOCK should restore its performance. Further
optimizations are possible if this regression proves to be problematic.
Patch 2/2 disables per-VMA locks until the fix is tested and verified.
This patch (of 2):
When forking a child process, parent write-protects an anonymous page and
COW-shares it with the child being forked using copy_present_pte().
Parent's TLB is flushed right before we drop the parent's mmap_lock in
dup_mmap(). If we get a write-fault before that TLB flush in the parent,
and we end up replacing that anonymous page in the parent process in
do_wp_page() (because, COW-shared with the child), this might lead to some
stale writable TLB entries targeting the wrong (old) page. Similar issue
happened in the past with userfaultfd (see flush_tlb_page() call inside
do_wp_page()).
Lock VMAs of the parent process when forking a child, which prevents
concurrent page faults during fork operation and avoids this issue. This
fix can potentially regress some fork-heavy workloads. Kernel build time
did not show noticeable regression on a 56-core machine while a stress
test mapping 10000 VMAs and forking 5000 times in a tight loop shows ~7%
regression. If such fork time regression is unacceptable, disabling
CONFIG_PER_VMA_LOCK should restore its performance. Further optimizations
are possible if this regression proves to be problematic.
Link: https://lkml.kernel.org/r/20230706011400.2949242-1-surenb@google.com
Link: https://lkml.kernel.org/r/20230706011400.2949242-2-surenb@google.com
Fixes: 0bff0aaea0 ("x86/mm: try VMA lock-based page fault handling first")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Reported-by: Jiri Slaby <jirislaby@kernel.org>
Closes: https://lore.kernel.org/all/dbdef34c-3a07-5951-e1ae-e9c6e3cdf51b@kernel.org/
Reported-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Closes: https://lore.kernel.org/all/b198d649-f4bf-b971-31d0-e8433ec2a34c@applied-asynchrony.com/
Reported-by: Jacob Young <jacobly.alt@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=3D217624
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Acked-by: David Hildenbrand <david@redhat.com>
Tested-by: Holger Hoffsttte <holger@applied-asynchrony.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
It seems the text for the NTB MSI Test Client section was copied from the
NTB Tool Test Client, but was not updated for the new section. Corrects
the NTB MSI Test Client section text.
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
With both the ntb_transport_init and the ntb_netdev_init_module routines in the
module_init init group, the ntb_netdev_init_module routine can be called before
the ntb_transport_init routine that it depends on is called. To assure the
proper initialization order put ntb_netdev_init_module in the late_initcall
group.
Fixes runtime errors where the ntb_netdev_init_module call fails with ENODEV.
Signed-off-by: Geoff Levand <geoff@infradead.org>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;
pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}
pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;
pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}
pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Remove pci_clear_master to simplify the code,
the bus-mastering is also cleared in do_pci_disable_device,
like this:
./drivers/pci/pci.c:2197
static void do_pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;
pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, pci_command);
}
pcibios_disable_device(dev);
}.
And dev->is_busmaster is set to 0 in pci_disable_device.
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
pci_enable_pcie_error_reporting() enables the device to send ERR_*
Messages. Since f26e58bf6f ("PCI/AER: Enable error reporting when AER is
native"), the PCI core does this for all devices during enumeration, so the
driver doesn't need to do it itself.
Remove the redundant pci_enable_pcie_error_reporting() call from the
driver. Also remove the corresponding pci_disable_pcie_error_reporting()
from the driver .remove() path.
Note that this only controls ERR_* Messages from the device. An ERR_*
Message may cause the Root Port to generate an interrupt, depending on the
AER Root Error Command register managed by the AER service driver.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Github deprecated the git:// links about a year ago, so let's move to
the https:// URLs instead.
Reported-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://github.blog/2021-09-01-improving-git-protocol-security-github/
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
As ntb_register_device() don't handle error of device_register(),
if ntb_register_device() returns error in pci_vntb_probe(), name of kobject
which is allocated in dev_set_name() called in device_add() is leaked.
As comment of device_add() says, it should call put_device() to drop the
reference count that was set in device_initialize()
when it fails, so the name can be freed in kobject_cleanup().
Signed-off-by: ruanjinjie <ruanjinjie@huawei.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
As the devm_kcalloc may return NULL pointer,
it should be better to add check for the return
value, as same as the others.
Fixes: 7f46c8b3a5 ("NTB: ntb_tool: Add full multi-port NTB API support")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
If device_register() returns error, the name allocated by
dev_set_name() need be freed. As comment of device_register()
says, it should use put_device() to give up the reference in
the error path. So fix this by calling put_device(), then the
name can be freed in kobject_cleanup(), and client_dev is freed
in ntb_transport_client_release().
Fixes: fce8a7bb5b ("PCI-Express Non-Transparent Bridge Support")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
A problem about ntb_hw_intel create debugfs failed is triggered with the
following log given:
[ 273.112733] Intel(R) PCI-E Non-Transparent Bridge Driver 2.0
[ 273.115342] debugfs: Directory 'ntb_hw_intel' with parent '/' already present!
The reason is that intel_ntb_pci_driver_init() returns
pci_register_driver() directly without checking its return value, if
pci_register_driver() failed, it returns without destroy the newly created
debugfs, resulting the debugfs of ntb_hw_intel can never be created later.
intel_ntb_pci_driver_init()
debugfs_create_dir() # create debugfs directory
pci_register_driver()
driver_register()
bus_add_driver()
priv = kzalloc(...) # OOM happened
# return without destroy debugfs directory
Fix by removing debugfs when pci_register_driver() returns error.
Fixes: e26a5843f7 ("NTB: Split ntb_hw_intel and ntb_transport drivers")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
A problem about ntb_hw_amd create debugfs failed is triggered with the
following log given:
[ 618.431232] AMD(R) PCI-E Non-Transparent Bridge Driver 1.0
[ 618.433284] debugfs: Directory 'ntb_hw_amd' with parent '/' already present!
The reason is that amd_ntb_pci_driver_init() returns pci_register_driver()
directly without checking its return value, if pci_register_driver()
failed, it returns without destroy the newly created debugfs, resulting
the debugfs of ntb_hw_amd can never be created later.
amd_ntb_pci_driver_init()
debugfs_create_dir() # create debugfs directory
pci_register_driver()
driver_register()
bus_add_driver()
priv = kzalloc(...) # OOM happened
# return without destroy debugfs directory
Fix by removing debugfs when pci_register_driver() returns error.
Fixes: a1b3695820 ("NTB: Add support for AMD PCI-Express Non-Transparent Bridge")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
A problem about ntb_hw_idt create debugfs failed is triggered with the
following log given:
[ 1236.637636] IDT PCI-E Non-Transparent Bridge Driver 2.0
[ 1236.639292] debugfs: Directory 'ntb_hw_idt' with parent '/' already present!
The reason is that idt_pci_driver_init() returns pci_register_driver()
directly without checking its return value, if pci_register_driver()
failed, it returns without destroy the newly created debugfs, resulting
the debugfs of ntb_hw_idt can never be created later.
idt_pci_driver_init()
debugfs_create_dir() # create debugfs directory
pci_register_driver()
driver_register()
bus_add_driver()
priv = kzalloc(...) # OOM happened
# return without destroy debugfs directory
Fix by removing debugfs when pci_register_driver() returns error.
Fixes: bf2a952d31 ("NTB: Add IDT 89HPESxNTx PCIe-switches support")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Quiet down this gcc warning:
fs/xfs/xfs_fsops.c: In function ‘xfs_growfs_data’:
fs/xfs/xfs_fsops.c:219:21: error: ‘lastag_extended’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
219 | if (lastag_extended) {
| ^~~~~~~~~~~~~~~
fs/xfs/xfs_fsops.c💯33: note: ‘lastag_extended’ was declared here
100 | bool lastag_extended;
| ^~~~~~~~~~~~~~~
By setting its value explicitly. From code analysis I don't think this
is a real problem, but I have better things to do than analyse this
closely.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
A collection of small fixes that have been gathered recently:
- Two code-typo fixes in the new UMP core
- A fix in jack reporting to avoid the usage of mutex
- A potential data race fix in HD-audio core regmap code
- A potential data race fix in PCM allocation helper code
- HD-audio quirks for ASUS, Clevo and Unis machines
- Constifications in FireWire drivers
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Merge tag 'sound-fix-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes that have been gathered recently:
- Two code-typo fixes in the new UMP core
- A fix in jack reporting to avoid the usage of mutex
- A potential data race fix in HD-audio core regmap code
- A potential data race fix in PCM allocation helper code
- HD-audio quirks for ASUS, Clevo and Unis machines
- Constifications in FireWire drivers"
* tag 'sound-fix-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek: Add quirk for ASUS ROG GZ301V
ALSA: jack: Fix mutex call in snd_jack_report()
ALSA: seq: ump: fix typo in system_2p_ev_to_ump_midi1()
ALSA: hda/realtek: Whitespace fix
ALSA: hda/realtek: Add quirk for ASUS ROG G614Jx
ALSA: hda/realtek: Amend G634 quirk to enable rear speakers
ALSA: hda/realtek: Add quirk for ASUS ROG GA402X
ALSA: hda/realtek: Add quirk for ASUS ROG GX650P
ALSA: pcm: Fix potential data race at PCM memory allocation helpers
ALSA: hda: fix a possible null-pointer dereference due to data race in snd_hdac_regmap_sync()
ALSA: hda/realtek: Add quirks for Unis H3C Desktop B760 & Q760
ALSA: hda/realtek: Add quirk for Clevo NPx0SNx
ALSA: ump: Correct wrong byte size at converting a UMP System message
ALSA: fireface: make read-only const array for model names static
ALSA: oxfw: make read-only const array models static
with a fix for a regression in the readahead handling code which sneaked
in with the switch to netfs helpers.
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Merge tag 'ceph-for-6.5-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
"A bunch of CephFS fixups from Xiubo, mostly around dropping caps,
along with a fix for a regression in the readahead handling code which
sneaked in with the switch to netfs helpers"
* tag 'ceph-for-6.5-rc1' of https://github.com/ceph/ceph-client:
ceph: don't let check_caps skip sending responses for revoke msgs
ceph: issue a cap release immediately if no cap exists
ceph: trigger to flush the buffer when making snapshot
ceph: fix blindly expanding the readahead windows
ceph: add a dedicated private data for netfs rreq
ceph: voluntarily drop Xx caps for requests those touch parent mtime
ceph: try to dump the msgs when decoding fails
ceph: only send metrics when the MDS rank is ready
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Merge tag 'ntfs3_for_6.5' of https://github.com/Paragon-Software-Group/linux-ntfs3
Pull ntfs3 updates from Konstantin Komarov:
"Updates:
- support /proc/fs/ntfs3/<dev>/volinfo and label
- alternative boot if primary boot is corrupted
- small optimizations
Fixes:
- fix endian problems
- fix logic errors
- code refactoring and reformatting"
* tag 'ntfs3_for_6.5' of https://github.com/Paragon-Software-Group/linux-ntfs3:
fs/ntfs3: Correct mode for label entry inside /proc/fs/ntfs3/
fs/ntfs3: Add support /proc/fs/ntfs3/<dev>/volinfo and /proc/fs/ntfs3/<dev>/label
fs/ntfs3: Fix endian problem
fs/ntfs3: Add ability to format new mft records with bigger/smaller header
fs/ntfs3: Code refactoring
fs/ntfs3: Code formatting
fs/ntfs3: Do not update primary boot in ntfs_init_from_boot()
fs/ntfs3: Alternative boot if primary boot is corrupted
fs/ntfs3: Mark ntfs dirty when on-disk struct is corrupted
fs/ntfs3: Fix ntfs_atomic_open
fs/ntfs3: Correct checking while generating attr_list
fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_load_attr_list()
fs: ntfs3: Fix possible null-pointer dereferences in mi_read()
fs/ntfs3: Return error for inconsistent extended attributes
fs/ntfs3: Enhance sanity check while generating attr_list
fs/ntfs3: Use wrapper i_blocksize() in ntfs_zero_range()
ntfs: Fix panic about slab-out-of-bounds caused by ntfs_listxattr()
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Merge tag 'fsnotify_for_v6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify fix from Jan Kara:
"A fix for fanotify to disallow creating of mount or superblock marks
for kernel internal pseudo filesystems"
* tag 'fsnotify_for_v6.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: disallow mount/sb marks on kernel internal pseudo fs
* A bunch of fixes/cleanups from the first part of the merge window,
mostly related to ACPI and vector as those were large.
* Some documentation improvements, mostly related to the new code.
* The "riscv,isa" DT key is deprecated.
* Support for link-time dead code elimination.
* Support for minor fault registration in userfaultd.
* A handful of cleanups around CMO alternatives.
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Merge tag 'riscv-for-linus-6.5-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt:
- A bunch of fixes/cleanups from the first part of the merge window,
mostly related to ACPI and vector as those were large
- Some documentation improvements, mostly related to the new code
- The "riscv,isa" DT key is deprecated
- Support for link-time dead code elimination
- Support for minor fault registration in userfaultd
- A handful of cleanups around CMO alternatives
* tag 'riscv-for-linus-6.5-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (23 commits)
riscv: mm: mark noncoherent_supported as __ro_after_init
riscv: mm: mark CBO relate initialization funcs as __init
riscv: errata: thead: only set cbom size & noncoherent during boot
riscv: Select HAVE_ARCH_USERFAULTFD_MINOR
RISC-V: Document the ISA string parsing rules for ACPI
risc-v: Fix order of IPI enablement vs RCU startup
mm: riscv: fix an unsafe pte read in huge_pte_alloc()
dt-bindings: riscv: deprecate riscv,isa
RISC-V: drop error print from riscv_hartid_to_cpuid()
riscv: Discard vector state on syscalls
riscv: move memblock_allow_resize() after linear mapping is ready
riscv: Enable ARCH_SUSPEND_POSSIBLE for s2idle
riscv: vdso: include vdso/vsyscall.h for vdso_data
selftests: Test RISC-V Vector's first-use handler
riscv: vector: clear V-reg in the first-use trap
riscv: vector: only enable interrupts in the first-use trap
RISC-V: Fix up some vector state related build failures
RISC-V: Document that V registers are clobbered on syscalls
riscv: disable HAVE_LD_DEAD_CODE_DATA_ELIMINATION for LLD
riscv: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION
...
- Fix PCIe MEM size for pci2 node on Turris 1.x boards.
- Two minor build fixes.
Thanks to: Christophe Leroy, Douglas Anderson, Pali Rohár, Petr Mladek, Randy Dunlap.
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Merge tag 'powerpc-6.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix PCIe MEM size for pci2 node on Turris 1.x boards
- Two minor build fixes
Thanks to Christophe Leroy, Douglas Anderson, Pali Rohár, Petr Mladek,
and Randy Dunlap.
* tag 'powerpc-6.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: dts: turris1x.dts: Fix PCIe MEM size for pci2 node
powerpc: Include asm/nmi.c in mobility.c for watchdog_hardlockup_set_timeout_pct()
powerpc: allow PPC_EARLY_DEBUG_CPM only when SERIAL_CPM=y
apparmor: fix missing error check for rhashtable_insert_fast
apparmor: add missing failure check in compute_xmatch_perms
apparmor: fix policy_compat permission remap with extended permissions
apparmor: fix profile verification and enable it
apparmor: fix: kzalloc perms tables for shared dfas
apparmor: Fix kernel-doc header for verify_dfa_accept_index
apparmor: aa_buffer: Convert 1-element array to flexible array
apparmor: Return directly after a failed kzalloc() in two functions
apparmor: fix use of strcpy in policy_unpack_test
apparmor: fix kernel-doc complaints
AppArmor: Fix some kernel-doc comments
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Merge tag 'apparmor-pr-2023-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor
Pull apparmor updates from John Johansen:
- fix missing error check for rhashtable_insert_fast
- add missing failure check in compute_xmatch_perms
- fix policy_compat permission remap with extended permissions
- fix profile verification and enable it
- fix kzalloc perms tables for shared dfas
- Fix kernel-doc header for verify_dfa_accept_index
- aa_buffer: Convert 1-element array to flexible array
- Return directly after a failed kzalloc() in two functions
- fix use of strcpy in policy_unpack_test
- fix kernel-doc complaints
- Fix some kernel-doc comments
* tag 'apparmor-pr-2023-07-06' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor:
apparmor: Fix kernel-doc header for verify_dfa_accept_index
apparmor: fix: kzalloc perms tables for shared dfas
apparmor: fix profile verification and enable it
apparmor: fix policy_compat permission remap with extended permissions
apparmor: aa_buffer: Convert 1-element array to flexible array
apparmor: add missing failure check in compute_xmatch_perms
apparmor: fix missing error check for rhashtable_insert_fast
apparmor: Return directly after a failed kzalloc() in two functions
AppArmor: Fix some kernel-doc comments
apparmor: fix use of strcpy in policy_unpack_test
apparmor: fix kernel-doc complaints
Parking CPUs in INIT works well, except for the crash case when the CPU
which invokes smp_park_other_cpus_in_init() is not the boot CPU. Sending
INIT to the boot CPU resets the whole machine.
Prevent this by validating that this runs on the boot CPU. If not fall back
and let CPUs hang in HLT.
Fixes: 45e34c8af5 ("x86/smp: Put CPUs into INIT on shutdown if possible")
Reported-by: Baokun Li <libaokun1@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Baokun Li <libaokun1@huawei.com>
Link: https://lore.kernel.org/r/87ttui91jo.ffs@tglx
Commit e4de205769 ("MIPS: KVM: Fix NULL pointer dereference") missed
converting one place accessing cop0 registers, which results in a build
error, if KVM_MIPS_DEBUG_COP0_COUNTERS is enabled.
Fixes: e4de205769 ("MIPS: KVM: Fix NULL pointer dereference")
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
As of commit 6c80a93be6 ("drm/fb-helper: Initialize fb-helper's
preferred BPP in prepare function"), the preferred_bpp parameter of
drm_fb_helper_prepare() defaults to 32 instead of
drm_mode_config.preferred_depth. Hence this also applies to
drm_fbdev_dma_setup(), which just passes its own preferred_bpp
parameter.
Fixes: b79fe9abd5 ("drm/fbdev-dma: Implement fbdev emulation for GEM DMA helpers")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/91f093ffe436a9f94d58fb2bfbc1407f1ebe8bb0.1688656591.git.geert+renesas@glider.be
Adds the required quirk to enable the Cirrus amp and correct pins
on the ASUS ROG GZ301V series which uses an SPI connected Cirrus amp.
While this works if the related _DSD properties are made available, these
aren't included in the ACPI of these laptops (yet).
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20230706223323.30871-2-luke@ljones.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
fbdev:
- Fix module infos on sparc
panel:
- Fix mode on Starry-ili9882t
i915:
- Allow DC states along with PW2 only for PWB functionality [adlp+]
- Fix SSC selection for MPLLA [mtl]
- Use hw.adjusted mode when calculating io/fast wake times [psr]
- Apply min softlimit correctly [guc/slpc]
- Assign correct hdcp content type [hdcp]
- Add missing forward declarations/includes to display power headers
- Fix BDW PSR AUX CH data register offsets [psr]
- Use mock device info for creating mock device
amdgpu:
- Misc cleanups
- GFX 9.4.3 fixes
- DEBUGFS build fix
- Fix LPDDR5 reporting
- ASPM fixes
- DCN 3.1.4 fixes
- DP MST fixes
- DCN 3.2.x fixes
- Display PSR TCON fixes
- SMU 13.x fixes
- RAS fixes
- Vega12/20 SMU fixes
- PSP flashing cleanup
- GFX9 MCBP fixes
- SR-IOV fixes
- GPUVM clear mappings fix for always valid BOs
- Add FAMS quirk for problematic monitor
- Fix possible UAF
- Better handle monentary temperature fluctuations
- SDMA 4.4.2 fixes
- Fencing fix
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Merge tag 'drm-next-2023-07-07' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Lots of fixes, mostly i915 and amdgpu. It's two weeks of i915, and I
think three weeks of amdgpu.
fbdev:
- Fix module infos on sparc
panel:
- Fix mode on Starry-ili9882t
i915:
- Allow DC states along with PW2 only for PWB functionality [adlp+]
- Fix SSC selection for MPLLA [mtl]
- Use hw.adjusted mode when calculating io/fast wake times [psr]
- Apply min softlimit correctly [guc/slpc]
- Assign correct hdcp content type [hdcp]
- Add missing forward declarations/includes to display power headers
- Fix BDW PSR AUX CH data register offsets [psr]
- Use mock device info for creating mock device
amdgpu:
- Misc cleanups
- GFX 9.4.3 fixes
- DEBUGFS build fix
- Fix LPDDR5 reporting
- ASPM fixes
- DCN 3.1.4 fixes
- DP MST fixes
- DCN 3.2.x fixes
- Display PSR TCON fixes
- SMU 13.x fixes
- RAS fixes
- Vega12/20 SMU fixes
- PSP flashing cleanup
- GFX9 MCBP fixes
- SR-IOV fixes
- GPUVM clear mappings fix for always valid BOs
- Add FAMS quirk for problematic monitor
- Fix possible UAF
- Better handle monentary temperature fluctuations
- SDMA 4.4.2 fixes
- Fencing fix"
* tag 'drm-next-2023-07-07' of git://anongit.freedesktop.org/drm/drm: (83 commits)
drm/i915: use mock device info for creating mock device
drm/i915/psr: Fix BDW PSR AUX CH data register offsets
drm/amdgpu: Fix potential fence use-after-free v2
drm/amd/pm: avoid unintentional shutdown due to temperature momentary fluctuation
drm/amd/pm: expose swctf threshold setting for legacy powerplay
drm/amd/display: 3.2.241
drm/amd/display: Take full update path if number of planes changed
drm/amd/display: Create debugging mechanism for Gaming FAMS
drm/amd/display: Add monitor specific edid quirk
drm/amd/display: For new fast update path, loop through each surface
drm/amd/display: Remove Phantom Pipe Check When Calculating K1 and K2
drm/amd/display: Limit new fast update path to addr and gamma / color
drm/amd/display: Fix the delta clamping for shaper LUT
drm/amdgpu: Keep non-psp path for partition switch
drm/amd/display: program DPP shaper and 3D LUT if updated
Revert "drm/amd/display: edp do not add non-edid timings"
drm/amdgpu: share drm device for pci amdgpu device with 1st partition device
drm/amd/pm: Add GFX v9.4.3 unique id to sysfs
drm/amd/pm: Enable pp_feature attribute
drm/amdgpu/vcn: Need to unpause dpg before stop dpg
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