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Matthew Wilcox (Oracle) 03bda5032d mm: Account dirty folios properly during splits 
[ Upstream commit fb5c2029f8 ]

If the last folio in a file is split as a result of truncation,
we simply clear the dirty bits for the pages we're discarding.
That causes NR_FILE_DIRTY (among other counters) to be thrown off
and eventually Linux will hang in balance_dirty_pages_ratelimited()

Reported-by: Dave Chinner <dchinner@redhat.com>
Tested-by: Dave Chinner <dchinner@redhat.com>
Tested-by: Darrick J. Wong <djwong@kernel.org>
Fixes: d68eccad37 ("mm/filemap: Allow large folios to be added to the page cache")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 14:40:57 +02:00
arch arm64: Expand ESR_ELx_WFx_ISS_TI to match its ARMv8.7 definition 2022-08-17 14:40:42 +02:00
block blk-mq: don't create hctx debugfs dir until q->debugfs_dir is created 2022-08-17 14:40:38 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:28:03 +02:00
crypto crypto: memneq - move into lib/ 2022-06-22 14:28:06 +02:00
Documentation dm writecache: count number of blocks discarded, not number of discard bios 2022-08-17 14:40:39 +02:00
drivers drm/vc4: hdmi: Move pixel doubling from Pixelvalve to HDMI block 2022-08-17 14:40:57 +02:00
fs io_uring: move to separate directory 2022-08-17 14:40:41 +02:00
include raw: convert raw sockets to RCU 2022-08-17 14:40:49 +02:00
init stack: Declare {randomize_,}kstack_offset to fix Sparse warnings 2022-08-17 14:40:36 +02:00
io_uring io_uring: Don't require reinitable percpu_ref 2022-08-17 14:40:42 +02:00
ipc ipc/mqueue: use get_tree_nodev() in mqueue_get_tree() 2022-06-09 10:30:30 +02:00
kernel rcutorture: Fix ksoftirqd boosting timing and iteration 2022-08-17 14:40:52 +02:00
lib test_bpf: fix incorrect netdev features 2022-08-17 14:40:52 +02:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm mm: Account dirty folios properly during splits 2022-08-17 14:40:57 +02:00
net raw: Fix mixed declarations error in raw_icmp_error(). 2022-08-17 14:40:49 +02:00
samples samples/landlock: Format with clang-format 2022-06-09 10:30:46 +02:00
scripts kbuild: Fix include path in scripts/Makefile.modpost 2022-08-17 14:40:34 +02:00
security selinux: Add boundary check in put_entry() 2022-08-17 14:40:26 +02:00
sound ALSA: hda/realtek: Add a quirk for HP OMEN 15 (8786) mute LED 2022-08-17 14:40:07 +02:00
tools selftests/bpf: Fix rare segfault in sock_fields prog test 2022-08-17 14:40:52 +02:00
usr Kbuild updates for v5.18 2022-03-31 11:59:03 -07:00
virt KVM: Do not incorporate page offset into gfn=>pfn cache user address 2022-08-17 14:40:06 +02:00
.clang-format genirq/msi: Make interrupt allocation less convoluted 2021-12-16 22:22:20 +01:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.mailmap hotfixes for 5.18-rc7 2022-05-13 10:22:37 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: replace a Microchip AT91 maintainer 2022-02-09 11:30:01 +01:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS io_uring: move to separate directory 2022-08-17 14:40:41 +02:00
Makefile io_uring: move to separate directory 2022-08-17 14:40:41 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.