WSL2-Linux-Kernel

The source for the Linux kernel used in Windows Subsystem for Linux 2 (WSL2)

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Xiaoguang Wang c7849be9cc io_uring: fix __io_iopoll_check deadlock in io_sq_thread Since commit `a3a0e43fd7` ("io_uring: don't enter poll loop if we have CQEs pending"), if we already events pending, we won't enter poll loop. In case SETUP_IOPOLL and SETUP_SQPOLL are both enabled, if app has been terminated and don't reap pending events which are already in cq ring, and there are some reqs in poll_list, io_sq_thread will enter __io_iopoll_check(), and find pending events, then return, this loop will never have a chance to exit. I have seen this issue in fio stress tests, to fix this issue, let io_sq_thread call io_iopoll_getevents() with argument 'min' being zero, and remove __io_iopoll_check(). Fixes: `a3a0e43fd7` ("io_uring: don't enter poll loop if we have CQEs pending") Signed-off-by: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2020-02-22 07:45:03 -07:00
Documentation	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2020-02-15 16:49:25 -08:00
LICENSES	…
arch	ARM: SoC fixes	2020-02-15 13:16:47 -08:00
block	block-5.6-2020-02-05	2020-02-06 06:15:23 +00:00
certs	…
crypto	s390 updates for 5.6-rc2	2020-02-15 13:10:38 -08:00
drivers	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2020-02-15 16:49:25 -08:00
fs	io_uring: fix __io_iopoll_check deadlock in io_sq_thread	2020-02-22 07:45:03 -07:00
include	Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2020-02-15 12:51:22 -08:00
init	Various fixes:	2020-02-11 16:39:18 -08:00
ipc	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
kernel	Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2020-02-15 12:51:22 -08:00
lib	Various fixes:	2020-02-11 16:39:18 -08:00
mm	Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-02-08 13:26:41 -08:00
net	NFS Client Bugfixes for Linux 5.6-rc2	2020-02-14 14:46:11 -08:00
samples	Kbuild updates for v5.6 (2nd)	2020-02-09 16:05:50 -08:00
scripts	kbuild: fix mismatch between .version and include/generated/compile.h	2020-02-11 05:18:40 +09:00
security	selinux/stable-5.6 PR 20200210	2020-02-10 16:51:35 -08:00
sound	ALSA: pcm: Fix double hw_free calls	2020-02-13 16:30:22 +01:00
tools	Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2020-02-15 12:30:42 -08:00
usr	Kbuild updates for v5.6 (2nd)	2020-02-09 16:05:50 -08:00
virt	KVM: fix overflow of zero page refcount with ksm running	2020-02-05 15:27:46 +01:00
.clang-format	…
.cocciconfig	…
.get_maintainer.ignore	…
.gitattributes	…
.gitignore	…
.mailmap	A handful of small documentation fixes that wandered in.	2020-02-07 13:03:10 -08:00
COPYING	…
CREDITS	…
Kbuild	…
Kconfig	…
MAINTAINERS	MAINTAINERS: Sort entries in database for GPIO	2020-02-10 10:55:18 +01:00
Makefile	Linux 5.6-rc1	2020-02-09 16:08:48 -08:00
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.