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Christoph Hellwig fc6391de33 iomap: clear the per-folio dirty bits on all writeback failures 
[ Upstream commit 7ea1d9b4a8 ]

write_cache_pages always clear the page dirty bit before calling into the
file systems, and leaves folios with a writeback failure without the
dirty bit after return.  We also clear the per-block writeback bits for
writeback failures unless no I/O has submitted, which will leave the
folio in an inconsistent state where it doesn't have the folio dirty,
but one or more per-block dirty bits.  This seems to be due the place
where the iomap_clear_range_dirty call was inserted into the existing
not very clearly structured code when adding per-block dirty bit support
and not actually intentional.  Switch to always clearing the dirty on
writeback failure.

Fixes: 4ce02c6797 ("iomap: Add per-block dirty state tracking to improve performance")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20231207072710.176093-2-hch@lst.de
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-26 18:16:26 -04:00
arch KVM/x86: Export RFDS_NO and RFDS_CLEAR to guests 2024-03-15 10:48:13 -04:00
block block: sed-opal: handle empty atoms when parsing response 2024-02-16 15:52:45 -07:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto crypto: lskcipher - Copy IV in lskcipher glue code always 2024-02-24 08:37:24 +08:00
Documentation x86/rfds: Mitigate Register File Data Sampling (RFDS) 2024-03-15 10:48:13 -04:00
drivers x86/rfds: Mitigate Register File Data Sampling (RFDS) 2024-03-15 10:48:13 -04:00
fs iomap: clear the per-folio dirty bits on all writeback failures 2024-03-26 18:16:26 -04:00
include workqueue: Implement system-wide nr_active enforcement for unbound workqueues 2024-03-26 18:16:26 -04:00
init init/Kconfig: lower GCC version check for -Warray-bounds 2024-03-04 16:40:33 -08:00
io_uring io_uring/net: fix multishot accept overflow handling 2024-02-14 18:30:19 -07:00
ipc shm: Slim down dependencies 2023-12-20 19:26:31 -05:00
kernel workqueue: Don't call cpumask_test_cpu() with -1 CPU in wq_update_node_max_active() 2024-03-26 18:16:26 -04:00
lib iov_iter: get rid of 'copy_mc' flag 2024-03-06 10:52:12 +01:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm 6 hotfixes. 4 are cc:stable and the remainder pertain to post-6.7 2024-03-07 17:16:38 -08:00
net A follow-up for sparse read fixes that went into -rc4 -- msgr2 case was 2024-03-08 18:05:21 -08:00
rust Rust changes for v6.8 2024-01-11 13:05:41 -08:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
scripts 6 hotfixes. 4 are cc:stable and the remainder pertain to post-6.7 2024-03-07 17:16:38 -08:00
security integrity-v6.8-fix 2024-03-05 13:21:30 -08:00
sound ASoC: Fixes for v6.8 2024-03-08 08:53:36 +01:00
tools KVM GUEST_MEMFD fixes for 6.8: 2024-03-10 09:27:39 -07:00
usr Kbuild updates for v6.8 2024-01-18 17:57:07 -08:00
virt KVM: Make KVM_MEM_GUEST_MEMFD mutually exclusive with KVM_MEM_READONLY 2024-02-22 17:07:06 -08:00
.clang-format clang-format: Update with v6.7-rc4's for_each macro list 2023-12-08 23:54:38 +01:00
.cocciconfig
.editorconfig Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.mailmap drm fixes for 6.8 final 2024-03-08 12:44:56 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: supplement of zswap maintainers update 2024-01-25 23:52:21 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS drm fixes for 6.8 final 2024-03-08 12:44:56 -08:00
Makefile Linux 6.8.1 2024-03-15 14:19:29 -04:00
README

README 

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

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

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 Restructured Text 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.