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Yu Kuai fbd879fc77 md/raid1: fix data lost for writemostly rdev 
[ Upstream commit 93dec51e71 ]

If writemostly is enabled, alloc_behind_master_bio() will allocate a new
bio for rdev, with bi_opf set to 0. Later, raid1_write_request() will
clone from this bio, hence bi_opf is still 0 for the cloned bio. Submit
this cloned bio will end up to be read, causing write data lost.

Fix this problem by inheriting bi_opf from original bio for
behind_mast_bio.

Fixes: e879a0d9cb ("md/raid1,raid10: don't ignore IO flags")
Reported-and-tested-by: Ian Dall <ian@beware.dropbear.id.au>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220507
Link: https://lore.kernel.org/linux-raid/20250903014140.3690499-1-yukuai1@huaweicloud.com
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Li Nan <linan122@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-09-09 19:02:39 +02:00
arch x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings() 2025-09-09 19:02:29 +02:00
block blk-zoned: Fix a lockdep complaint about recursive locking 2025-09-04 16:55:46 +02:00
certs
crypto crypto: acomp - Fix CFI failure due to type punning 2025-08-28 16:34:34 +02:00
Documentation dt-bindings: display/msm: qcom,mdp5: drop lut clock 2025-09-04 16:55:37 +02:00
drivers md/raid1: fix data lost for writemostly rdev 2025-09-09 19:02:39 +02:00
fs cifs: prevent NULL pointer dereference in UTF16 conversion 2025-09-09 19:02:34 +02:00
include mm: introduce and use {pgd,p4d}_populate_kernel() 2025-09-09 19:02:30 +02:00
init io_uring: fix breakage in EXPERT menu 2025-08-15 16:38:23 +02:00
io_uring io_uring/kbuf: always use READ_ONCE() to read ring provided buffer lengths 2025-09-04 16:55:43 +02:00
ipc - The 3 patch series "hung_task: extend blocking task stacktrace dump to 2025-05-31 19:12:53 -07:00
kernel audit: fix out-of-bounds read in audit_compare_dname_path() 2025-09-09 19:02:34 +02:00
lib lib/sbitmap: convert shallow_depth from one word to the whole sbitmap 2025-08-20 18:41:31 +02:00
LICENSES
mm kunit: kasan_test: disable fortify string checker on kasan_strings() test 2025-09-09 19:02:30 +02:00
net batman-adv: fix OOB read/write in network-coding decode 2025-09-09 19:02:34 +02:00
rust rust: mm: mark VmaNew as transparent 2025-09-09 19:02:29 +02:00
samples samples/damon/mtier: support boot time enable setup 2025-08-20 18:41:35 +02:00
scripts rust: support Rust >= 1.91.0 target spec 2025-09-09 19:02:35 +02:00
security apparmor: Fix 8-byte alignment for initial dfa blob streams 2025-08-28 16:34:16 +02:00
sound ALSA: hda: tas2781: reorder tas2563 calibration variables 2025-09-09 19:02:36 +02:00
tools tools: gpio: remove the include directory on make clean 2025-09-09 19:02:39 +02:00
usr
virt KVM: Allow CPU to reschedule while setting per-page memory attributes 2025-06-24 12:20:17 -07:00
.clang-format
.clippy.toml
.cocciconfig
.editorconfig
.get_maintainer.ignore
.gitattributes
.gitignore gitignore: allow .pylintrc to be tracked 2025-08-15 16:39:03 +02:00
.mailmap 11 hotfixes. 9 are cc:stable and the remainder address post-6.15 issues 2025-07-24 19:13:30 -07:00
.pylintrc
.rustfmt.toml
COPYING
CREDITS mm: update MAINTAINERS entry for HMM 2025-07-19 19:26:16 -07:00
Kbuild
Kconfig
MAINTAINERS 11 hotfixes. 9 are cc:stable and the remainder address post-6.15 issues 2025-07-24 19:13:30 -07:00
Makefile Linux 6.16.5 2025-09-04 16:55:53 +02:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
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In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.