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Jackie Liu e9ffa5c2b7 io_uring: set -EINTR directly when a signal wakes up in io_cqring_wait 
We didn't use -ERESTARTSYS to tell the application layer to restart the
system call, but instead return -EINTR. we can set -EINTR directly when
wakeup by the signal, which can help us save an assignment operation and
comparison operation.

Reviewed-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-11-01 08:36:36 -06:00
arch
um-ubd: Entrust re-queue to the upper layers
2019-10-29 10:07:41 -06:00
block
blk-rq-qos: fix first node deletion of rq_qos_del()
2019-10-15 10:13:13 -06:00
certs
PKCS#7: Refactor verify_pkcs7_signature()
2019-08-05 18:40:18 -04:00
crypto
Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-09-28 08:14:15 -07:00
Documentation
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2019-10-25 16:00:47 -04:00
drivers
nvme-multipath: remove unused groups_only mode in ana log
2019-10-29 08:55:00 -06:00
fs
io_uring: set -EINTR directly when a signal wakes up in io_cqring_wait
2019-11-01 08:36:36 -06:00
include
io_uring: support for generic async request cancel
2019-11-01 08:35:31 -06:00
init
io_uring: replace workqueue usage with io-wq
2019-10-29 12:43:06 -06:00
ipc
ipc/sem.c: convert to use built-in RCU list checking
2019-09-25 17:51:41 -07:00
kernel
io-wq: small threadpool implementation for io_uring
2019-10-29 12:43:00 -06:00
lib
lib/vdso: Make clock_getres() POSIX compliant again
2019-10-23 14:48:23 +02:00
LICENSES
LICENSES: Rename other to deprecated
2019-05-03 06:34:32 -06:00
mm
mm/thp: allow dropping THP from page cache
2019-10-19 06:32:33 -04:00
net
net: add __sys_accept4_file() helper
2019-10-29 12:43:06 -06:00
samples
samples/bpf: Add a workaround for asm_inline
2019-10-03 17:37:11 +02:00
scripts
Merge tag 'modules-for-v5.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
2019-10-25 16:11:55 -04:00
security
Merge tag 'selinux-pr-20191007' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
2019-10-08 10:51:37 -07:00
sound
ALSA: hda: Add Tigerlake/Jasperlake PCI ID
2019-10-23 06:28:50 +02:00
tools
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-10-27 06:59:34 -04:00
usr
kbuild: update compile-test header list for v5.4-rc2
2019-10-05 15:29:49 +09:00
virt
Merge tag 'kvmarm-fixes-5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
2019-10-22 13:31:29 +02:00
.clang-format
clang-format: Update with the latest for_each macro list
2019-08-31 10:00:51 +02:00
.cocciconfig
scripts: add Linux .cocciconfig for coccinelle
2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: set git diff driver for C source code files
2016-10-07 18:46:30 -07:00
.gitignore
Merge tag 'modules-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
2019-09-22 10:34:46 -07:00
.mailmap
Merge tag 'mips_fixes_5.4_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
2019-10-26 19:43:12 -04:00
COPYING
COPYING: use the new text with points to the license files
2018-03-23 12:41:45 -06:00
CREDITS
MAINTAINERS: Remove Simon as Renesas SoC Co-Maintainer
2019-10-10 08:12:51 -07:00
Kbuild
kbuild: do not descend to ./Kbuild when cleaning
2019-08-21 21:03:58 +09:00
Kconfig
docs: kbuild: convert docs to ReST and rename to *.rst
2019-06-14 14:21:21 -06:00
MAINTAINERS
Merge tag 'mips_fixes_5.4_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
2019-10-26 19:43:12 -04:00
Makefile
Linux 5.4-rc5
2019-10-27 13:19:19 -04:00
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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