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Yu Kuai b9b083f904 md/raid10: convert resync_lock to use seqlock 
Currently, wait_barrier() will hold 'resync_lock' to read 'conf->barrier',
and io can't be dispatched until 'barrier' is dropped.

Since holding the 'barrier' is not common, convert 'resync_lock' to use
seqlock so that holding lock can be avoided in fast path.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-and-Tested-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Song Liu <song@kernel.org>
2022-09-22 00:05:05 -07:00
arch
s390/dasd: suppress generic error messages for PPRC secondary devices
2022-09-21 08:32:51 -06:00
block
block/blk-rq-qos: delete useless enmu RQ_QOS_IOPRIO
2022-09-21 19:50:53 -06:00
certs
Kbuild updates for v5.20
2022-08-10 10:40:41 -07:00
crypto
crypto: blake2b: effectively disable frame size warning
2022-08-10 17:59:11 -07:00
Documentation
asm goto: eradicate CC_HAS_ASM_GOTO
2022-08-21 10:06:28 -07:00
drivers
md/raid10: convert resync_lock to use seqlock
2022-09-22 00:05:05 -07:00
fs
block: remove PSI accounting from the bio layer
2022-09-20 08:24:38 -06:00
include
block: Fix the enum blk_eh_timer_return documentation
2022-09-21 08:34:37 -06:00
init
asm goto: eradicate CC_HAS_ASM_GOTO
2022-08-21 10:06:28 -07:00
io_uring
io_uring/net: use right helpers for async_data
2022-08-18 07:27:20 -06:00
ipc
Updates to various subsystems which I help look after. lib, ocfs2,
2022-08-07 10:03:24 -07:00
kernel
sched/psi: export psi_memstall_{enter,leave}
2022-09-20 08:24:38 -06:00
lib
sbitmap: fix batched wait_cnt accounting
2022-09-12 00:10:34 -06:00
LICENSES
LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers
2021-12-16 14:33:10 +01:00
mm
mm: add PSI accounting around ->read_folio and ->readahead calls
2022-09-20 08:24:38 -06:00
net
tcp: handle pure FIN case correctly
2022-08-18 11:04:56 -07:00
samples
Tracing updates for 5.20 / 6.0
2022-08-05 09:41:12 -07:00
scripts
asm goto: eradicate CC_HAS_ASM_GOTO
2022-08-21 10:06:28 -07:00
security
hardening fixes for v6.0-rc2
2022-08-19 13:56:14 -07:00
sound
sound fixes for 6.0-rc2
2022-08-19 09:46:11 -07:00
tools
asm goto: eradicate CC_HAS_ASM_GOTO
2022-08-21 10:06:28 -07:00
usr
Not a lot of material this cycle. Many singleton patches against various
2022-05-27 11:22:03 -07:00
virt
KVM: Drop unnecessary initialization of "ops" in kvm_ioctl_create_device()
2022-08-19 04:05:43 -04:00
.clang-format
PCI/DOE: Add DOE mailbox support functions
2022-07-19 15:38:04 -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: split the second line of *.mod into *.usyms
2022-05-08 03:16:59 +09:00
.mailmap
Updates to various subsystems which I help look after. lib, ocfs2,
2022-08-07 10:03:24 -07:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
drm for 5.20/6.0
2022-08-03 19:52:08 -07:00
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
5 cifs/smb3 fixes, one for stable
2022-08-21 10:21:16 -07:00
Makefile
Linux 6.0-rc2
2022-08-21 17:32:54 -07:00
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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