The Host Performance Buffer feature allows UFS read commands to carry the
physical media addresses along with the LBAs, thus allowing less internal
L2P-table switches in the device. HPB1.0 allowed a single LBA, while
HPB2.0 increases this capacity up to 255 blocks.
Carrying more than a single record, the read operation is no longer purely
of type "read" but a "hybrid" command: Writing the physical address to the
device in one operation and reading back the required payload in another.
The JEDEC HPB spec defines two commands for this operation:
HPB-WRITE-BUFFER (0x2) to write the physical addresses to device, and
HPB-READ to read the payload.
With the current HPB design the UFS driver has no alternative but to divide
the READ request into 2 separate commands: HPB-WRITE-BUFFER and HPB-READ.
This causes a great deal of aggravation to the block layer guys who
demanded that we completely revert the entire HPB driver regardless of the
huge amount of corporate effort already invested in it.
As a compromise, remove only the pieces that implement the 2.0
specification. This is done as a matter of urgency for the final 5.15
release.
Link: https://lore.kernel.org/r/20211030062301.248-1-avri.altman@wdc.com
Tested-by: Avri Altman <avri.altman@wdc.com>
Tested-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Co-developed-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Three commits fixing some issues introduced with the recent IOMMU changes we merged.
Thanks to: Alexey Kardashevskiy
-----BEGIN PGP SIGNATURE-----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=R9Yq
-----END PGP SIGNATURE-----
Merge tag 'powerpc-5.15-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Three commits fixing some issues introduced with the recent IOMMU
changes we merged.
Thanks to Alexey Kardashevskiy"
* tag 'powerpc-5.15-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/pseries/iommu: Create huge DMA window if no MMIO32 is present
powerpc/pseries/iommu: Check if the default window in use before removing it
powerpc/pseries/iommu: Use correct vfree for it_map
- fix the return value check when parsing the ngpios property in gpio-xgs-iproc
- check the return value of bgpio_init() in gpio-mlxbf2
-----BEGIN PGP SIGNATURE-----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=Sxrc
-----END PGP SIGNATURE-----
Merge tag 'gpio-fixes-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix the return value check when parsing the ngpios property in
gpio-xgs-iproc
- check the return value of bgpio_init() in gpio-mlxbf2
* tag 'gpio-fixes-for-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: mlxbf2.c: Add check for bgpio_init failure
gpio: xgs-iproc: fix parsing of ngpios property
Testing revealed a problem with how the reference tag was handled for
a WRITE_INSERT operation. The SCSI_PROT_REF_CHECK flag is not set when
the controller is asked to generate the protection information
(i.e. not DIX). And as a result the initial reference tag would not be
set in the WRITE_INSERT case.
Separate handling of the REF_CHECK and REF_INCREMENT flags to align
with both the DIX spec and the MPI implementation.
Link: https://lore.kernel.org/r/20211028034202.24225-1-martin.petersen@oracle.com
Fixes: b3e2c72af1 ("scsi: mpt3sas: Use the proper SCSI midlayer interfaces for PI")
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- tmio: Re-enable card irqs after a reset
- mtk-sd: Fixup probing of cqhci for crypto
- cqhci: Fix support for suspend/resume
- vub300: Fix control-message timeouts
- dw_mmc-exynos: Fix support for tuning
- winbond: Silences build errors on M68K
- sdhci-esdhc-imx: Fix support for tuning
- sdhci-pci: Read card detect from ACPI for Intel Merrifield
- sdhci: Fix eMMC support for Thundercomm TurboX CM2290
-----BEGIN PGP SIGNATURE-----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=SM2+
-----END PGP SIGNATURE-----
Merge tag 'mmc-v5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
- tmio: Re-enable card irqs after a reset
- mtk-sd: Fixup probing of cqhci for crypto
- cqhci: Fix support for suspend/resume
- vub300: Fix control-message timeouts
- dw_mmc-exynos: Fix support for tuning
- winbond: Silences build errors on M68K
- sdhci-esdhc-imx: Fix support for tuning
- sdhci-pci: Read card detect from ACPI for Intel Merrifield
- sdhci: Fix eMMC support for Thundercomm TurboX CM2290
* tag 'mmc-v5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: tmio: reenable card irqs after the reset callback
mmc: mediatek: Move cqhci init behind ungate clock
mmc: cqhci: clear HALT state after CQE enable
mmc: vub300: fix control-message timeouts
mmc: dw_mmc: exynos: fix the finding clock sample value
mmc: winbond: don't build on M68K
mmc: sdhci-esdhc-imx: clear the buffer_read_ready to reset standard tuning circuit
mmc: sdhci-pci: Read card detect from ACPI for Intel Merrifield
mmc: sdhci: Map more voltage level to SDHCI_POWER_330
-----BEGIN PGP SIGNATURE-----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=YWGa
-----END PGP SIGNATURE-----
Merge tag 'for-5.15-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Last minute fixes for crash on 32bit architectures when compression is
in use. It's a regression introduced in 5.15-rc and I'd really like
not let this into the final release, fixes via stable trees would add
unnecessary delay.
The problem is on 32bit architectures with highmem enabled, the pages
for compression may need to be kmapped, while the patches removed that
as we don't use GFP_HIGHMEM allocations anymore. The pages that don't
come from local allocation still may be from highmem. Despite being on
32bit there's enough such ARM machines in use so it's not a marginal
issue.
I did full reverts of the patches one by one instead of a huge one.
There's one exception for the "lzo" revert as there was an
intermediate patch touching the same code to make it compatible with
subpage. I can't revert that one too, so the revert in lzo.c is
manual. Qu Wenruo has worked on that with me and verified the changes"
* tag 'for-5.15-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
Revert "btrfs: compression: drop kmap/kunmap from lzo"
Revert "btrfs: compression: drop kmap/kunmap from zlib"
Revert "btrfs: compression: drop kmap/kunmap from zstd"
Revert "btrfs: compression: drop kmap/kunmap from generic helpers"
- Some bots have informed me that some of the ftrace functions kernel-doc
has formatting issues.
- Also, fix my snake instinct.
-----BEGIN PGP SIGNATURE-----
iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCYXwAqxQccm9zdGVkdEBn
b29kbWlzLm9yZwAKCRAp5XQQmuv6qpl+AQDn8QTG2RN9+jWVTNkCcWNNQDKPi5Ij
QYquG/clrCVnwgEAtxUoC+ZAcnsadBm5gXwjzCi62aWfAb9apkTHb6fZAgc=
=H3GU
-----END PGP SIGNATURE-----
Merge tag 'trace-v5.15-rc6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing comment fixes from Steven Rostedt:
- Some bots have informed me that some of the ftrace functions
kernel-doc has formatting issues.
- Also, fix my snake instinct.
* tag 'trace-v5.15-rc6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix misspelling of "missing"
ftrace: Fix kernel-doc formatting issues
Pull crypto fix from Herbert Xu:
"Fix a build-time warning in x86/sm4"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: x86/sm4 - Fix invalid section entry size
Merge misc fixes from Andrew Morton:
"11 patches.
Subsystems affected by this patch series: mm (memcg, memory-failure,
oom-kill, secretmem, vmalloc, hugetlb, damon, and tools), and ocfs2"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
tools/testing/selftests/vm/split_huge_page_test.c: fix application of sizeof to pointer
mm/damon/core-test: fix wrong expectations for 'damon_split_regions_of()'
mm: khugepaged: skip huge page collapse for special files
mm, thp: bail out early in collapse_file for writeback page
mm/vmalloc: fix numa spreading for large hash tables
mm/secretmem: avoid letting secretmem_users drop to zero
ocfs2: fix race between searching chunks and release journal_head from buffer_head
mm/oom_kill.c: prevent a race between process_mrelease and exit_mmap
mm: filemap: check if THP has hwpoisoned subpage for PMD page fault
mm: hwpoison: remove the unnecessary THP check
memcg: page_alloc: skip bulk allocator for __GFP_ACCOUNT
Nathan reported that because KASAN_SHADOW_OFFSET was not defined in
Kconfig, it prevents asan-stack from getting disabled with clang even
when CONFIG_KASAN_STACK is disabled: fix this by defining the
corresponding config.
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Fixes: 8ad8b72721 ("riscv: Add KASAN support")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
When calling this function, all the shadow memory is already populated
with kasan_early_shadow_pte which has PAGE_KERNEL protection.
kasan_populate_early_shadow write-protects the mapping of the range
of addresses passed in argument in zero_pte_populate, which actually
write-protects all the shadow memory mapping since kasan_early_shadow_pte
is used for all the shadow memory at this point. And then when using
memblock API to populate the shadow memory, the first write access to the
kernel stack triggers a trap. This becomes visible with the next commit
that contains a fix for asan-stack.
We already manually populate all the shadow memory in kasan_early_init
and we write-protect kasan_early_shadow_pte at the end of kasan_init
which makes the calls to kasan_populate_early_shadow superfluous so
we can remove them.
Signed-off-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Fixes: e178d670f2 ("riscv/kasan: add KASAN_VMALLOC support")
Fixes: 8ad8b72721 ("riscv: Add KASAN support")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Some functions had kernel-doc that used a comma instead of a hash to
separate the function name from the one line description.
Also, the "ftrace_is_dead()" had an incomplete description.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This reverts commit 8c945d32e6.
The kmaps in compression code are still needed and cause crashes on
32bit machines (ARM, x86). Reproducible eg. by running fstest btrfs/004
with enabled LZO or ZSTD compression.
The revert does not apply cleanly due to changes in a6e66e6f8c
("btrfs: rework lzo_decompress_bio() to make it subpage compatible")
that reworked the page iteration so the revert is done to be equivalent
to the original code.
Link: https://lore.kernel.org/all/CAJCQCtT+OuemovPO7GZk8Y8=qtOObr0XTDp8jh4OHD6y84AFxw@mail.gmail.com/
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=214839
Tested-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This reverts commit bbaf9715f3.
The kmaps in compression code are still needed and cause crashes on
32bit machines (ARM, x86). Reproducible eg. by running fstest btrfs/004
with enabled LZO or ZSTD compression.
Example stacktrace with ZSTD on a 32bit ARM machine:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c4159ed3
[00000000] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 210 Comm: kworker/u2:3 Not tainted 5.14.0-rc79+ #12
Hardware name: Allwinner sun4i/sun5i Families
Workqueue: btrfs-delalloc btrfs_work_helper
PC is at mmiocpy+0x48/0x330
LR is at ZSTD_compressStream_generic+0x15c/0x28c
(mmiocpy) from [<c0629648>] (ZSTD_compressStream_generic+0x15c/0x28c)
(ZSTD_compressStream_generic) from [<c06297dc>] (ZSTD_compressStream+0x64/0xa0)
(ZSTD_compressStream) from [<c049444c>] (zstd_compress_pages+0x170/0x488)
(zstd_compress_pages) from [<c0496798>] (btrfs_compress_pages+0x124/0x12c)
(btrfs_compress_pages) from [<c043c068>] (compress_file_range+0x3c0/0x834)
(compress_file_range) from [<c043c4ec>] (async_cow_start+0x10/0x28)
(async_cow_start) from [<c0475c3c>] (btrfs_work_helper+0x100/0x230)
(btrfs_work_helper) from [<c014ef68>] (process_one_work+0x1b4/0x418)
(process_one_work) from [<c014f210>] (worker_thread+0x44/0x524)
(worker_thread) from [<c0156aa4>] (kthread+0x180/0x1b0)
(kthread) from [<c0100150>]
Link: https://lore.kernel.org/all/CAJCQCtT+OuemovPO7GZk8Y8=qtOObr0XTDp8jh4OHD6y84AFxw@mail.gmail.com/
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=214839
Signed-off-by: David Sterba <dsterba@suse.com>
The coccinelle check report:
./tools/testing/selftests/vm/split_huge_page_test.c:344:36-42:
ERROR: application of sizeof to pointer
Use "strlen" to fix it.
Link: https://lkml.kernel.org/r/20211012030116.184027-1-davidcomponentone@gmail.com
Signed-off-by: David Yang <davidcomponentone@gmail.com>
Reported-by: Zeal Robot <zealci@zte.com.cn>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kunit test cases for 'damon_split_regions_of()' expects the number of
regions after calling the function will be same to their request
('nr_sub'). However, the requested number is just an upper-limit,
because the function randomly decides the size of each sub-region.
This fixes the wrong expectation.
Link: https://lkml.kernel.org/r/20211028090628.14948-1-sj@kernel.org
Fixes: 17ccae8bb5 ("mm/damon: add kunit tests")
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently collapse_file does not explicitly check PG_writeback, instead,
page_has_private and try_to_release_page are used to filter writeback
pages. This does not work for xfs with blocksize equal to or larger
than pagesize, because in such case xfs has no page->private.
This makes collapse_file bail out early for writeback page. Otherwise,
xfs end_page_writeback will panic as follows.
page:fffffe00201bcc80 refcount:0 mapcount:0 mapping:ffff0003f88c86a8 index:0x0 pfn:0x84ef32
aops:xfs_address_space_operations [xfs] ino:30000b7 dentry name:"libtest.so"
flags: 0x57fffe0000008027(locked|referenced|uptodate|active|writeback)
raw: 57fffe0000008027 ffff80001b48bc28 ffff80001b48bc28 ffff0003f88c86a8
raw: 0000000000000000 0000000000000000 00000000ffffffff ffff0000c3e9a000
page dumped because: VM_BUG_ON_PAGE(((unsigned int) page_ref_count(page) + 127u <= 127u))
page->mem_cgroup:ffff0000c3e9a000
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:1212!
Internal error: Oops - BUG: 0 [#1] SMP
Modules linked in:
BUG: Bad page state in process khugepaged pfn:84ef32
xfs(E)
page:fffffe00201bcc80 refcount:0 mapcount:0 mapping:0 index:0x0 pfn:0x84ef32
libcrc32c(E) rfkill(E) aes_ce_blk(E) crypto_simd(E) ...
CPU: 25 PID: 0 Comm: swapper/25 Kdump: loaded Tainted: ...
pstate: 60400005 (nZCv daif +PAN -UAO -TCO BTYPE=--)
Call trace:
end_page_writeback+0x1c0/0x214
iomap_finish_page_writeback+0x13c/0x204
iomap_finish_ioend+0xe8/0x19c
iomap_writepage_end_bio+0x38/0x50
bio_endio+0x168/0x1ec
blk_update_request+0x278/0x3f0
blk_mq_end_request+0x34/0x15c
virtblk_request_done+0x38/0x74 [virtio_blk]
blk_done_softirq+0xc4/0x110
__do_softirq+0x128/0x38c
__irq_exit_rcu+0x118/0x150
irq_exit+0x1c/0x30
__handle_domain_irq+0x8c/0xf0
gic_handle_irq+0x84/0x108
el1_irq+0xcc/0x180
arch_cpu_idle+0x18/0x40
default_idle_call+0x4c/0x1a0
cpuidle_idle_call+0x168/0x1e0
do_idle+0xb4/0x104
cpu_startup_entry+0x30/0x9c
secondary_start_kernel+0x104/0x180
Code: d4210000 b0006161 910c8021 94013f4d (d4210000)
---[ end trace 4a88c6a074082f8c ]---
Kernel panic - not syncing: Oops - BUG: Fatal exception in interrupt
Link: https://lkml.kernel.org/r/20211022023052.33114-1-rongwei.wang@linux.alibaba.com
Fixes: 99cb0dbd47 ("mm,thp: add read-only THP support for (non-shmem) FS")
Signed-off-by: Rongwei Wang <rongwei.wang@linux.alibaba.com>
Signed-off-by: Xu Yu <xuyu@linux.alibaba.com>
Suggested-by: Yang Shi <shy828301@gmail.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Song Liu <song@kernel.org>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Dumazet reported a strange numa spreading info in [1], and found
commit 121e6f3258 ("mm/vmalloc: hugepage vmalloc mappings") introduced
this issue [2].
Dig into the difference before and after this patch, page allocation has
some difference:
before:
alloc_large_system_hash
__vmalloc
__vmalloc_node(..., NUMA_NO_NODE, ...)
__vmalloc_node_range
__vmalloc_area_node
alloc_page /* because NUMA_NO_NODE, so choose alloc_page branch */
alloc_pages_current
alloc_page_interleave /* can be proved by print policy mode */
after:
alloc_large_system_hash
__vmalloc
__vmalloc_node(..., NUMA_NO_NODE, ...)
__vmalloc_node_range
__vmalloc_area_node
alloc_pages_node /* choose nid by nuam_mem_id() */
__alloc_pages_node(nid, ....)
So after commit 121e6f3258 ("mm/vmalloc: hugepage vmalloc mappings"),
it will allocate memory in current node instead of interleaving allocate
memory.
Link: https://lore.kernel.org/linux-mm/CANn89iL6AAyWhfxdHO+jaT075iOa3XcYn9k6JJc7JR2XYn6k_Q@mail.gmail.com/ [1]
Link: https://lore.kernel.org/linux-mm/CANn89iLofTR=AK-QOZY87RdUZENCZUT4O6a0hvhu3_EwRMerOg@mail.gmail.com/ [2]
Link: https://lkml.kernel.org/r/20211021080744.874701-2-chenwandun@huawei.com
Fixes: 121e6f3258 ("mm/vmalloc: hugepage vmalloc mappings")
Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Uladzislau Rezki <urezki@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Quoting Dmitry:
"refcount_inc() needs to be done before fd_install(). After
fd_install() finishes, the fd can be used by userspace and
we can have secret data in memory before the refcount_inc().
A straightforward misuse where a user will predict the returned
fd in another thread before the syscall returns and will use it
to store secret data is somewhat dubious because such a user just
shoots themself in the foot.
But a more interesting misuse would be to close the predicted fd
and decrement the refcount before the corresponding refcount_inc,
this way one can briefly drop the refcount to zero while there are
other users of secretmem."
Move fd_install() after refcount_inc().
Link: https://lkml.kernel.org/r/20211021154046.880251-1-keescook@chromium.org
Link: https://lore.kernel.org/lkml/CACT4Y+b1sW6-Hkn8HQYw_SsT7X3tp-CJNh2ci0wG3ZnQz9jjig@mail.gmail.com
Fixes: 9a436f8ff6 ("PM: hibernate: disable when there are active secretmem users")
Signed-off-by: Kees Cook <keescook@chromium.org>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Jordy Zomer <jordy@pwning.systems>
Cc: Mike Rapoport <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Encountered a race between ocfs2_test_bg_bit_allocatable() and
jbd2_journal_put_journal_head() resulting in the below vmcore.
PID: 106879 TASK: ffff880244ba9c00 CPU: 2 COMMAND: "loop3"
Call trace:
panic
oops_end
no_context
__bad_area_nosemaphore
bad_area_nosemaphore
__do_page_fault
do_page_fault
page_fault
[exception RIP: ocfs2_block_group_find_clear_bits+316]
ocfs2_block_group_find_clear_bits [ocfs2]
ocfs2_cluster_group_search [ocfs2]
ocfs2_search_chain [ocfs2]
ocfs2_claim_suballoc_bits [ocfs2]
__ocfs2_claim_clusters [ocfs2]
ocfs2_claim_clusters [ocfs2]
ocfs2_local_alloc_slide_window [ocfs2]
ocfs2_reserve_local_alloc_bits [ocfs2]
ocfs2_reserve_clusters_with_limit [ocfs2]
ocfs2_reserve_clusters [ocfs2]
ocfs2_lock_refcount_allocators [ocfs2]
ocfs2_make_clusters_writable [ocfs2]
ocfs2_replace_cow [ocfs2]
ocfs2_refcount_cow [ocfs2]
ocfs2_file_write_iter [ocfs2]
lo_rw_aio
loop_queue_work
kthread_worker_fn
kthread
ret_from_fork
When ocfs2_test_bg_bit_allocatable() called bh2jh(bg_bh), the
bg_bh->b_private NULL as jbd2_journal_put_journal_head() raced and
released the jounal head from the buffer head. Needed to take bit lock
for the bit 'BH_JournalHead' to fix this race.
Link: https://lkml.kernel.org/r/1634820718-6043-1-git-send-email-gautham.ananthakrishna@oracle.com
Signed-off-by: Gautham Ananthakrishna <gautham.ananthakrishna@oracle.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: <rajesh.sivaramasubramaniom@oracle.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
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>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Race between process_mrelease and exit_mmap, where free_pgtables is
called while __oom_reap_task_mm is in progress, leads to kernel crash
during pte_offset_map_lock call. oom-reaper avoids this race by setting
MMF_OOM_VICTIM flag and causing exit_mmap to take and release
mmap_write_lock, blocking it until oom-reaper releases mmap_read_lock.
Reusing MMF_OOM_VICTIM for process_mrelease would be the simplest way to
fix this race, however that would be considered a hack. Fix this race
by elevating mm->mm_users and preventing exit_mmap from executing until
process_mrelease is finished. Patch slightly refactors the code to
adapt for a possible mmget_not_zero failure.
This fix has considerable negative impact on process_mrelease
performance and will likely need later optimization.
Link: https://lkml.kernel.org/r/20211022014658.263508-1-surenb@google.com
Fixes: 884a7e5964 ("mm: introduce process_mrelease system call")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Christian Brauner <christian@brauner.io>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Jan Engelhardt <jengelh@inai.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When handling shmem page fault the THP with corrupted subpage could be
PMD mapped if certain conditions are satisfied. But kernel is supposed
to send SIGBUS when trying to map hwpoisoned page.
There are two paths which may do PMD map: fault around and regular
fault.
Before commit f9ce0be71d ("mm: Cleanup faultaround and finish_fault()
codepaths") the thing was even worse in fault around path. The THP
could be PMD mapped as long as the VMA fits regardless what subpage is
accessed and corrupted. After this commit as long as head page is not
corrupted the THP could be PMD mapped.
In the regular fault path the THP could be PMD mapped as long as the
corrupted page is not accessed and the VMA fits.
This loophole could be fixed by iterating every subpage to check if any
of them is hwpoisoned or not, but it is somewhat costly in page fault
path.
So introduce a new page flag called HasHWPoisoned on the first tail
page. It indicates the THP has hwpoisoned subpage(s). It is set if any
subpage of THP is found hwpoisoned by memory failure and after the
refcount is bumped successfully, then cleared when the THP is freed or
split.
The soft offline path doesn't need this since soft offline handler just
marks a subpage hwpoisoned when the subpage is migrated successfully.
But shmem THP didn't get split then migrated at all.
Link: https://lkml.kernel.org/r/20211020210755.23964-3-shy828301@gmail.com
Fixes: 800d8c63b2 ("shmem: add huge pages support")
Signed-off-by: Yang Shi <shy828301@gmail.com>
Reviewed-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Suggested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When handling THP hwpoison checked if the THP is in allocation or free
stage since hwpoison may mistreat it as hugetlb page. After commit
415c64c145 ("mm/memory-failure: split thp earlier in memory error
handling") the problem has been fixed, so this check is no longer
needed. Remove it. The side effect of the removal is hwpoison may
report unsplit THP instead of unknown error for shmem THP. It seems not
like a big deal.
The following patch "mm: filemap: check if THP has hwpoisoned subpage
for PMD page fault" depends on this, which fixes shmem THP with
hwpoisoned subpage(s) are mapped PMD wrongly. So this patch needs to be
backported to -stable as well.
Link: https://lkml.kernel.org/r/20211020210755.23964-2-shy828301@gmail.com
Signed-off-by: Yang Shi <shy828301@gmail.com>
Suggested-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 5c1f4e690e ("mm/vmalloc: switch to bulk allocator in
__vmalloc_area_node()") switched to bulk page allocator for order 0
allocation backing vmalloc. However bulk page allocator does not
support __GFP_ACCOUNT allocations and there are several users of
kvmalloc(__GFP_ACCOUNT).
For now make __GFP_ACCOUNT allocations bypass bulk page allocator. In
future if there is workload that can be significantly improved with the
bulk page allocator with __GFP_ACCCOUNT support, we can revisit the
decision.
Link: https://lkml.kernel.org/r/20211014151607.2171970-1-shakeelb@google.com
Fixes: 5c1f4e690e ("mm/vmalloc: switch to bulk allocator in __vmalloc_area_node()")
Signed-off-by: Shakeel Butt <shakeelb@google.com>
Reported-by: Vasily Averin <vvs@virtuozzo.com>
Tested-by: Vasily Averin <vvs@virtuozzo.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Roman Gushchin <guro@fb.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix a regression introduced in v5.15-rc6 that caused nvdimm namespace
shutdown to hang due to reworks in the block layer q_usage_count.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQSbo+XnGs+rwLz9XGXfioYZHlFsZwUCYXsgRwAKCRDfioYZHlFs
Z9cwAQCJ+vNNQaE0jeIvzszWdi0tFBP/+fVx4arY6Muphn8cXAEAuxSX+Tx0G+Xo
Tj27xcZ+cbk+IkWIDEExZgD/NZWrdg8=
=wNTj
-----END PGP SIGNATURE-----
Merge tag 'libnvdimm-fixes-5.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fix from Dan Williams:
- Fix a regression introduced in v5.15-rc6 that caused nvdimm namespace
shutdown to hang due to reworks in the block layer q_usage_count.
* tag 'libnvdimm-fixes-5.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nvdimm/pmem: stop using q_usage_count as external pgmap refcount
The reset callback may clear the internal card detect interrupts, so
make sure to reenable them if needed.
Fixes: b4d86f37ea ("mmc: renesas_sdhi: do hard reset if possible")
Reported-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20211028195149.8003-1-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
MAINTAINERS:
- change the paths
ttm:
- Fix fence leak in ttm_transfered_destroy.
core:
- add GPD Win3 rotation quirk
i915:
- Remove unconditional clflushes
- Fix oops on boot due to sync state on disabled DP encoders
- Revert backend specific data added to tracepoints
- Remove useless and incorrect memory frequence calculation
panel:
- Add quirk for Aya Neo 2021
seltest:
- Reset property count for each drm damage selftest so full run will work correctly.
amdgpu:
- Fix two potential out of bounds writes in debugfs
- Fix revision handling for Yellow Carp
- Display fixes for Yellow Carp
- Display fixes for DCN 3.1
-----BEGIN PGP SIGNATURE-----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=sAyL
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-2021-10-29' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Quiet but not too quiet, I blame Halloween.
The first set of amdgpu fixes missed last week, hence why this has a
few more of them, it's mostly display fixes for new GPUs and some
debugfs OOB stuff.
The i915 patches have one to remove a tracepoint possible issue before
it's a real problem, the others around cflush and display are cc'ed to
stable as well.
Otherwise it's just a few misc fixes.
Summary:
MAINTAINERS:
- Fix the path pattern
ttm:
- Fix fence leak in ttm_transfered_destroy.
core:
- Add GPD Win3 rotation quirk
i915:
- Remove unconditional clflushes
- Fix oops on boot due to sync state on disabled DP encoders
- Revert backend specific data added to tracepoints
- Remove useless and incorrect memory frequence calculation
panel:
- Add quirk for Aya Neo 2021
seltest:
- Reset property count for each drm damage selftest so full run will
work correctly.
amdgpu:
- Fix two potential out of bounds writes in debugfs
- Fix revision handling for Yellow Carp
- Display fixes for Yellow Carp
- Display fixes for DCN 3.1"
* tag 'drm-fixes-2021-10-29' of git://anongit.freedesktop.org/drm/drm: (21 commits)
MAINTAINERS: dri-devel is for all of drivers/gpu
drm/i915: Revert 'guc_id' from i915_request tracepoint
drm/amd/display: Fix deadlock when falling back to v2 from v3
drm/amd/display: Fallback to clocks which meet requested voltage on DCN31
drm/amdgpu: Fix even more out of bound writes from debugfs
drm: panel-orientation-quirks: Add quirk for GPD Win3
drm/i915/dp: Skip the HW readout of DPCD on disabled encoders
drm/i915: Catch yet another unconditioal clflush
drm/i915: Convert unconditional clflush to drm_clflush_virt_range()
drm/i915/selftests: Properly reset mock object propers for each test
drm: panel-orientation-quirks: Add quirk for Aya Neo 2021
drm/ttm: fix memleak in ttm_transfered_destroy
drm/amdgpu: support B0&B1 external revision id for yellow carp
drm/amd/display: Moved dccg init to after bios golden init
drm/amd/display: Increase watermark latencies for DCN3.1
drm/amd/display: increase Z9 latency to workaround underflow in Z9
drm/amd/display: Require immediate flip support for DCN3.1 planes
drm/amd/display: Fix prefetch bandwidth calculation for DCN3.1
drm/amd/display: Limit display scaling to up to true 4k for DCN 3.1
drm/amdgpu: fix out of bounds write
...
drm/i915 fixes for v5.15 final:
- Remove unconditional clflushes
- Fix oops on boot due to sync state on disabled DP encoders
- Revert backend specific data added to tracepoints
- Remove useless and incorrect memory frequence calculation
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8735olh27y.fsf@intel.com
(mac80211), and BPF.
Current release - regressions:
- skb_expand_head: adjust skb->truesize to fix socket memory
accounting
- mptcp: fix corrupt receiver key in MPC + data + checksum
Previous releases - regressions:
- multicast: calculate csum of looped-back and forwarded packets
- cgroup: fix memory leak caused by missing cgroup_bpf_offline
- cfg80211: fix management registrations locking, prevent list
corruption
- cfg80211: correct false positive in bridge/4addr mode check
- tcp_bpf: fix race in the tcp_bpf_send_verdict resulting in reusing
previous verdict
Previous releases - always broken:
- sctp: enhancements for the verification tag, prevent attackers
from killing SCTP sessions
- tipc: fix size validations for the MSG_CRYPTO type
- mac80211: mesh: fix HE operation element length check, prevent
out of bound access
- tls: fix sign of socket errors, prevent positive error codes
being reported from read()/write()
- cfg80211: scan: extend RCU protection in cfg80211_add_nontrans_list()
- implement ->sock_is_readable() for UDP and AF_UNIX, fix poll()
for sockets in a BPF sockmap
- bpf: fix potential race in tail call compatibility check resulting
in two operations which would make the map incompatible succeeding
- bpf: prevent increasing bpf_jit_limit above max
- bpf: fix error usage of map_fd and fdget() in generic batch update
- phy: ethtool: lock the phy for consistency of results
- prevent infinite while loop in skb_tx_hash() when Tx races with
driver reconfiguring the queue <> traffic class mapping
- usbnet: fixes for bad HW conjured by syzbot
- xen: stop tx queues during live migration, prevent UAF
- net-sysfs: initialize uid and gid before calling net_ns_get_ownership
- mlxsw: prevent Rx stalls under memory pressure
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-----BEGIN PGP SIGNATURE-----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=61p6
-----END PGP SIGNATURE-----
Merge tag 'net-5.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from WiFi (mac80211), and BPF.
Current release - regressions:
- skb_expand_head: adjust skb->truesize to fix socket memory
accounting
- mptcp: fix corrupt receiver key in MPC + data + checksum
Previous releases - regressions:
- multicast: calculate csum of looped-back and forwarded packets
- cgroup: fix memory leak caused by missing cgroup_bpf_offline
- cfg80211: fix management registrations locking, prevent list
corruption
- cfg80211: correct false positive in bridge/4addr mode check
- tcp_bpf: fix race in the tcp_bpf_send_verdict resulting in reusing
previous verdict
Previous releases - always broken:
- sctp: enhancements for the verification tag, prevent attackers from
killing SCTP sessions
- tipc: fix size validations for the MSG_CRYPTO type
- mac80211: mesh: fix HE operation element length check, prevent out
of bound access
- tls: fix sign of socket errors, prevent positive error codes being
reported from read()/write()
- cfg80211: scan: extend RCU protection in
cfg80211_add_nontrans_list()
- implement ->sock_is_readable() for UDP and AF_UNIX, fix poll() for
sockets in a BPF sockmap
- bpf: fix potential race in tail call compatibility check resulting
in two operations which would make the map incompatible succeeding
- bpf: prevent increasing bpf_jit_limit above max
- bpf: fix error usage of map_fd and fdget() in generic batch update
- phy: ethtool: lock the phy for consistency of results
- prevent infinite while loop in skb_tx_hash() when Tx races with
driver reconfiguring the queue <> traffic class mapping
- usbnet: fixes for bad HW conjured by syzbot
- xen: stop tx queues during live migration, prevent UAF
- net-sysfs: initialize uid and gid before calling
net_ns_get_ownership
- mlxsw: prevent Rx stalls under memory pressure"
* tag 'net-5.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (67 commits)
Revert "net: hns3: fix pause config problem after autoneg disabled"
mptcp: fix corrupt receiver key in MPC + data + checksum
riscv, bpf: Fix potential NULL dereference
octeontx2-af: Fix possible null pointer dereference.
octeontx2-af: Display all enabled PF VF rsrc_alloc entries.
octeontx2-af: Check whether ipolicers exists
net: ethernet: microchip: lan743x: Fix skb allocation failure
net/tls: Fix flipped sign in async_wait.err assignment
net/tls: Fix flipped sign in tls_err_abort() calls
net/smc: Correct spelling mistake to TCPF_SYN_RECV
net/smc: Fix smc_link->llc_testlink_time overflow
nfp: bpf: relax prog rejection for mtu check through max_pkt_offset
vmxnet3: do not stop tx queues after netif_device_detach()
r8169: Add device 10ec:8162 to driver r8169
ptp: Document the PTP_CLK_MAGIC ioctl number
usbnet: fix error return code in usbnet_probe()
net: hns3: adjust string spaces of some parameters of tx bd info in debugfs
net: hns3: expand buffer len for some debugfs command
net: hns3: add more string spaces for dumping packets number of queue info in debugfs
net: hns3: fix data endian problem of some functions of debugfs
...
A couple of final driver specific fixes for v5.15, one fixing potential
ID collisions between two instances of the Altera driver and one making
Microwire full duplex mode actually work on pl022.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmF6k84ACgkQJNaLcl1U
h9CnzwgAgI8It2vQvFkMHEYjyRvOlqe6x/PcOB/ZG0yt4POEKFIzwbszCSBwdq3G
JezwmYNmIZc262Rry5gKzTBF8jCF1iImBpL0ggXE9CVN3kpWS+lvOWn8qs8cUwkX
MYvdJBYg1IdWOdX8UC2E3ZklOQs+rJXlQe6pRmrlIhgCWED9EHMuedRY5iT8Kfet
ug3NqJt7x2WHgTp5lPUMQAvYkarllU1NfXkDQfwEWoinrXgPjhu0SsxrMUYRQu53
gEuaAqSphPPGx1GsLQNXd5xJhP6KkuZGKJKq8xXBO4seDVMri7BYl52QLqPAwVih
hPl1Xl8v6+nwDoFAvRM1ICzu6WyrTA==
=PM9x
-----END PGP SIGNATURE-----
Merge tag 'spi-fix-v5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A couple of final driver specific fixes for v5.15, one fixing
potential ID collisions between two instances of the Altera driver and
one making Microwire full duplex mode actually work on pl022"
* tag 'spi-fix-v5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: spl022: fix Microwire full duplex mode
spi: altera: Change to dynamic allocation of spi id
This fixes a potential double free when handling an out of memory error
inserting a node into an rbtree regcache.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmF6lHQACgkQJNaLcl1U
h9DNugf/WXDIhnn1ToxWpe80tGZFgTcyXN1T6QfCiP5iKbOsYHFYrITDUhnbCrV+
4z5YngU8Jw2bz6nx72Yt3c4bwQRl6ZESgH6Rupr1nClQO06k8bLySLVWJPH1V3y4
ofzdSc7x6JVHaVLj09NR6N3rrOKbmMxS8Ny0RMr7Futu0cPog0/7f57zG/Mkq9Fw
vBsLvtpwt9cAOPRl7lxiU3NXKVdWYyIXxOCGW7z+e7u/HK7W5ByELrgXo1BFLXST
dUks5d5qKHmExB/7plxv8mxOQlNHVimTxXpt2sL9Z9FoQR3OCs5kfG+eaIDyx5UW
Y10gaxu61sRO6g9EqUPhfzOkiAYk5Q==
=hMOi
-----END PGP SIGNATURE-----
Merge tag 'regmap-fix-v5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fix from Mark Brown:
"This fixes a potential double free when handling an out of memory
error inserting a node into an rbtree regcache"
* tag 'regmap-fix-v5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: Fix possible double-free in regcache_rbtree_exit()
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.14 (GNU/Linux)
iEYEABECAAYFAmF5tW8ACgkQ+iyteGJfRsrM3gCfZ83N4iiCkl5wohEyg7bgAW0A
ZyEAn1/BIzNw7ZnCdBr3akmjaXKYyM/y
=M5Hc
-----END PGP SIGNATURE-----
Merge tag 'linux-watchdog-5.15-rc7' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
"I overlooked Guenters request to sent this upstream earlier, so it's a
bit late in the release cycle.
This contains:
- Revert "watchdog: iTCO_wdt: Account for rebooting on second
timeout"
- sbsa: only use 32-bit accessors
- sbsa: drop unneeded MODULE_ALIAS
- ixp4xx_wdt: Fix address space warning
- Fix OMAP watchdog early handling"
* tag 'linux-watchdog-5.15-rc7' of git://www.linux-watchdog.org/linux-watchdog:
watchdog: Fix OMAP watchdog early handling
watchdog: ixp4xx_wdt: Fix address space warning
watchdog: sbsa: drop unneeded MODULE_ALIAS
watchdog: sbsa: only use 32-bit accessors
Revert "watchdog: iTCO_wdt: Account for rebooting on second timeout"
If the user tries to attach an event probe (eprobe) to an event that does
not exist, it will trigger a warning. There's an error check that only
expects memory issues otherwise it is considered a bug. But changes in the
code to move around the locking made it that it can error out if the user
attempts to attach to an event that does not exist, returning an -ENODEV.
As this path can be caused by user space putting in a bad value, do not
trigger a WARN.
-----BEGIN PGP SIGNATURE-----
iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCYXoHQhQccm9zdGVkdEBn
b29kbWlzLm9yZwAKCRAp5XQQmuv6qjT+AQCx4ThfDRwuUkIyfzJR68b6t9YnOL3p
gqoSsjIj2JvzzQD/VrsXbmZJw9iYBYKFzkDxaNkRpI7HWFdInD7jzRTo4w0=
=RWQl
-----END PGP SIGNATURE-----
Merge tag 'trace-v5.15-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"Do not WARN when attaching event probe to non-existent event
If the user tries to attach an event probe (eprobe) to an event that
does not exist, it will trigger a warning. There's an error check that
only expects memory issues otherwise it is considered a bug. But
changes in the code to move around the locking made it that it can
error out if the user attempts to attach to an event that does not
exist, returning an -ENODEV. As this path can be caused by user space
putting in a bad value, do not trigger a WARN"
* tag 'trace-v5.15-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Do not warn when connecting eprobe to non existing event
using packetdrill it's possible to observe that the receiver key contains
random values when clients transmit MP_CAPABLE with data and checksum (as
specified in RFC8684 §3.1). Fix the layout of mptcp_out_options, to avoid
using the skb extension copy when writing the MP_CAPABLE sub-option.
Fixes: d7b2690837 ("mptcp: shrink mptcp_out_options struct")
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/233
Reported-by: Poorva Sonparote <psonparo@redhat.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Link: https://lore.kernel.org/r/20211027203855.264600-1-mathew.j.martineau@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The bpf_jit_binary_free() function requires a non-NULL argument. When
the RISC-V BPF JIT fails to converge in NR_JIT_ITERATIONS steps,
jit_data->header will be NULL, which triggers a NULL
dereference. Avoid this by checking the argument, prior calling the
function.
Fixes: ca6cb5447c ("riscv, bpf: Factor common RISC-V JIT code")
Signed-off-by: Björn Töpel <bjorn@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20211028125115.514587-1-bjorn@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Rakesh Babu Saladi says:
====================
RVU Debugfs fix updates.
The following patch series consists of the patch fixes done over
rvu_debugfs.c and rvu_nix.c files.
Patch 1: Check and return if ipolicers do not exists.
Patch 2: Fix rsrc_alloc to print all enabled PF/VF entries with list of LFs
allocated for each functional block.
Patch 3: Fix possible null pointer dereference.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes possible null pointer dereference in files
"rvu_debugfs.c" and "rvu_nix.c"
Fixes: 8756828a81 ("octeontx2-af: Add NPA aura and pool contexts to debugfs")
Fixes: 9a946def26 ("octeontx2-af: Modify nix_vtag_cfg mailbox to support TX VTAG entries")
Signed-off-by: Rakesh Babu Saladi <rsaladi2@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, we are using a fixed buffer size of length 2048 to display
rsrc_alloc output. As a result a maximum of 2048 characters of
rsrc_alloc output is displayed, which may lead sometimes to display only
partial output. This patch fixes this dependency on max limit of buffer
size and displays all PF VF entries.
Each column of the debugfs entry "rsrc_alloc" uses a fixed width of 12
characters to print the list of LFs of each block for a PF/VF. If the
length of list of LFs of a block exceeds this fixed width then the list
gets truncated and displays only a part of the list. This patch fixes
this by using the maximum possible length of list of LFs among all
blocks of all PFs and VFs entries as the width size.
Fixes: f788409714 ("octeontx2-af: Formatting debugfs entry rsrc_alloc.")
Fixes: 23205e6d06 ("octeontx2-af: Dump current resource provisioning status")
Signed-off-by: Rakesh Babu <rsaladi2@marvell.com>
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <Sunil.Goutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
While displaying ingress policers information in
debugfs check whether ingress policers exist in
the hardware or not because some platforms(CN9XXX)
do not have this feature.
Fixes: e7d8971763 ("octeontx2-af: cn10k: Debugfs support for bandwidth")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Rakesh Babu <rsaladi2@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The driver allocates skb during ndo_open with GFP_ATOMIC which has high chance of failure when there are multiple instances.
GFP_KERNEL is enough while open and use GFP_ATOMIC only from interrupt context.
Fixes: 23f0703c12 ("lan743x: Add main source files for new lan743x driver")
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sk->sk_err contains a positive number, yet async_wait.err wants the
opposite. Fix the missed sign flip, which Jakub caught by inspection.
Fixes: a42055e8d2 ("net/tls: Add support for async encryption of records for performance")
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sk->sk_err appears to expect a positive value, a convention that ktls
doesn't always follow and that leads to memory corruption in other code.
For instance,
[kworker]
tls_encrypt_done(..., err=<negative error from crypto request>)
tls_err_abort(.., err)
sk->sk_err = err;
[task]
splice_from_pipe_feed
...
tls_sw_do_sendpage
if (sk->sk_err) {
ret = -sk->sk_err; // ret is positive
splice_from_pipe_feed (continued)
ret = actor(...) // ret is still positive and interpreted as bytes
// written, resulting in underflow of buf->len and
// sd->len, leading to huge buf->offset and bogus
// addresses computed in later calls to actor()
Fix all tls_err_abort() callers to pass a negative error code
consistently and centralize the error-prone sign flip there, throwing in
a warning to catch future misuse and uninlining the function so it
really does only warn once.
Cc: stable@vger.kernel.org
Fixes: c46234ebb4 ("tls: RX path for ktls")
Reported-by: syzbot+b187b77c8474f9648fae@syzkaller.appspotmail.com
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
