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Mikulas Patocka b716ccffbc dm writecache: write at least 4k when committing 
commit 867de40c4c23e6d7f89f9ce4272a5d1b1484c122 upstream.

SSDs perform badly with sub-4k writes (because they perfrorm
read-modify-write internally), so make sure writecache writes at least
4k when committing.

Fixes: 991bd8d7bc78 ("dm writecache: commit just one block, not a full page")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-19 09:45:02 +02:00
arch
arm64: tlb: fix the TTL value of tlb_get_level
2021-07-19 09:44:59 +02:00
block
rq-qos: fix missed wake-ups in rq_qos_throttle try two
2021-07-19 09:45:00 +02:00
certs
certs: Add ability to preload revocation certs
2021-06-30 08:47:30 -04:00
crypto
crypto: sm2 - fix a memory leak in sm2
2021-07-14 16:56:06 +02:00
Documentation
powerpc/papr_scm: Make 'perf_stats' invisible if perf-stats unavailable
2021-07-14 16:56:49 +02:00
drivers
dm writecache: write at least 4k when committing
2021-07-19 09:45:02 +02:00
fs
io_uring: fix clear IORING_SETUP_R_DISABLED in wrong function
2021-07-19 09:45:02 +02:00
include
media: subdev: disallow ioctl for saa6588/davinci
2021-07-19 09:45:02 +02:00
init
sched/core: Initialize the idle task with preemption disabled
2021-07-14 16:55:50 +02:00
ipc
ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry
2021-05-26 12:06:54 +02:00
kernel
tracing: Resize tgid_map to pid_max, not PID_MAX_DEFAULT
2021-07-19 09:45:01 +02:00
lib
seq_buf: Fix overflow in seq_buf_putmem_hex()
2021-07-19 09:45:00 +02:00
LICENSES
LICENSES/deprecated: add Zlib license text
2020-09-16 14:33:49 +02:00
mm
mm,hwpoison: return -EBUSY when migration fails
2021-07-19 09:44:56 +02:00
net
sctp: add size validation when walking chunks
2021-07-19 09:44:55 +02:00
samples
samples/bpf: Fix the error return code of xdp_redirect's main()
2021-07-14 16:56:23 +02:00
scripts
kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n'
2021-07-14 16:56:04 +02:00
security
selinux: use __GFP_NOWARN with GFP_NOWAIT in the AVC
2021-07-19 09:44:49 +02:00
sound
ASoC: tegra: Set driver_name=tegra for all machine drivers
2021-07-19 09:44:59 +02:00
tools
selftests/lkdtm: Fix expected text for CR4 pinning
2021-07-19 09:45:00 +02:00
usr
Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-08-07 13:29:39 -07:00
virt
KVM: do not allow mapping valid but non-reference-counted pages
2021-06-30 08:47:25 -04:00
.clang-format
RDMA 5.10 pull request
2020-10-17 11:18:18 -07:00
.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
kbuild: generate Module.symvers only when vmlinux exists
2021-05-19 10:12:59 +02:00
.mailmap
mailmap: add two more addresses of Uwe Kleine-König
2020-12-06 10:19:07 -08:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: Move Jason Cooper to CREDITS
2020-11-30 10:20:34 +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
f2fs: move ioctl interface definitions to separated file
2021-05-19 10:13:00 +02:00
Makefile
Linux 5.10.50
2021-07-14 16:56:55 +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.
Description
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