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Pavel Begunkov b5bb3a24f6 io_uring: warn when ring exit takes too long 
We use system_unbound_wq to run io_ring_exit_work(), so it's hard to
monitor whether removal hang or not. Add WARN_ONCE to catch hangs.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-03-07 14:12:43 -07:00
arch
* Doc fixes
2021-03-04 11:26:17 -08:00
block
block/bfq: update comments and default value in docs for fifo_expire
2021-03-02 11:25:38 -07:00
certs
certs: Replace K{U,G}IDT_INIT() with GLOBAL_ROOT_{U,G}ID
2021-01-21 16:16:10 +00:00
crypto
Keyrings miscellany
2021-02-23 16:09:23 -08:00
Documentation
block-5.12-2021-03-05
2021-03-05 12:59:37 -08:00
drivers
RDMA 5.12 first rc pull request
2021-03-05 17:27:59 -08:00
fs
io_uring: warn when ring exit takes too long
2021-03-07 14:12:43 -07:00
include
io_uring: index io_uring->xa by ctx not file
2021-03-07 14:12:43 -07:00
init
kbuild: fix UNUSED_KSYMS_WHITELIST for Clang LTO
2021-02-28 15:19:21 +09:00
ipc
fs: make helpers idmap mount aware
2021-01-24 14:27:20 +01:00
kernel
io_uring-5.12-2021-03-05
2021-03-05 12:44:43 -08:00
lib
Merge branch 'kmap-conversion-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
2021-03-01 11:24:18 -08:00
LICENSES
LICENSES: Add the CC-BY-4.0 license
2020-12-08 10:33:27 -07:00
mm
swap: fix swapfile read/write offset
2021-03-02 17:25:46 -07:00
net
io_uring-worker.v3-2021-02-25
2021-02-27 08:29:02 -08:00
samples
treewide: Miguel has moved
2021-02-26 09:41:03 -08:00
scripts
gcc-plugins fixes for v5.12-rc2
2021-03-05 17:23:03 -08:00
security
Keyrings miscellany
2021-02-23 16:09:23 -08:00
sound
ALSA: hda/realtek: Apply dual codec quirks for MSI Godlike X570 board
2021-03-03 15:25:03 +01:00
tools
* Doc fixes
2021-03-04 11:26:17 -08:00
usr
Kbuild updates for v5.12
2021-02-25 10:17:31 -08:00
virt
KVM: x86/mmu: Consider the hva in mmu_notifier retry
2021-02-22 13:16:53 -05:00
.clang-format
cxl for 5.12
2021-02-24 09:38:36 -08:00
.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
clang-lto series for v5.12-rc1
2021-02-23 09:28:51 -08:00
.mailmap
treewide: Miguel has moved
2021-02-26 09:41:03 -08:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
treewide: Miguel has moved
2021-02-26 09:41:03 -08:00
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
RISC-V Patches for the 5.12 Merge Window
2021-02-26 10:28:35 -08:00
Makefile
Linux 5.12-rc2
2021-03-05 17:33:41 -08:00
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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