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Pavel Begunkov 44f87745d5 io_uring: optimise locking for local tw with submit_wait
Running local task_work requires taking uring_lock, for submit + wait we
can try to run them right after submit while we still hold the lock and
save one lock/unlokc pair. The optimisation was implemented in the first
local tw patches but got dropped for simplicity.

Suggested-by: Dylan Yudaken <dylany@fb.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/281fc79d98b5d91fe4778c5137a17a2ab4693e5c.1665088876.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-10-12 16:30:56 -06:00
arch for-6.1/block-2022-10-03 2022-10-07 09:19:14 -07:00
block for-6.1/passthrough-2022-10-04 2022-10-07 09:35:50 -07:00
certs certs: make system keyring depend on built-in x509 parser 2022-09-24 04:31:18 +09:00
crypto crypto: blake2b: effectively disable frame size warning 2022-08-10 17:59:11 -07:00
Documentation 24 ksmbd server fixes 2022-10-07 08:19:26 -07:00
drivers drm fix for 6.1-rc1 2022-10-07 09:47:47 -07:00
fs for-6.1/block-2022-10-03 2022-10-07 09:19:14 -07:00
include io_uring: remove notif leftovers 2022-10-12 16:30:56 -06:00
init Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
io_uring io_uring: optimise locking for local tw with submit_wait 2022-10-12 16:30:56 -06:00
ipc Updates to various subsystems which I help look after. lib, ocfs2, 2022-08-07 10:03:24 -07:00
kernel for-6.1/block-2022-10-03 2022-10-07 09:19:14 -07:00
lib for-6.1/block-2022-10-03 2022-10-07 09:19:14 -07:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm for-6.1/block-2022-10-03 2022-10-07 09:19:14 -07:00
net io_uring/af_unix: defer registered files gc to io_uring release 2022-10-12 16:30:34 -06:00
rust Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
samples ARM: driver updates for 6.1 2022-10-06 11:04:57 -07:00
scripts Networking changes for 6.1. 2022-10-04 13:38:03 -07:00
security whack-a-mole: constifying struct path * 2022-10-06 17:31:02 -07:00
sound sound updates for 6.1-rc1 2022-10-05 12:02:07 -07:00
tools for-6.1/io_uring-2022-10-03 2022-10-07 08:52:43 -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 get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
.mailmap Qualcomm ARM64 DTS fixes for 6.0 2022-09-23 16:44:37 +02:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
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 for-6.1/block-2022-10-03 2022-10-07 09:19:14 -07:00
Makefile hardening updates for v6.1-rc1 2022-10-03 17:24:22 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.