Go to file
Linus Torvalds 1e6fa3a33e for-5.4/io_uring-2019-09-15
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl1+zs8QHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpvIOD/9P4MhnjTc9sFz978YGw2kP/yUjW0Vs194B
 nV5wmM+J3I6VUBgurNQeB7f14b/1CZnnPjisLKGzz1SKrhRQT/HuXzItsYpzRql3
 3GvD4aRNJd52pfkX3p7tA8uMr5Hh2gnNLhJtlPTaaAiIc8XCme+hHMnlmhwqMZ0T
 FKTc0Pw0yxvYIbxmt+pfWxoKhHrq12dYLG61Iv8XeSCb3k+EzdZV8jQdnN/TVhsF
 ngzxRMvbPjJ/TvDcsdV0qNqmLTojgmuiAvDs/3YPCreGVhMBkm4w/tlZGqTJHSdb
 Ljxzwp0Ungu94O2Ct3gN+pIxTJ5hgfnArfT40fbWczZrlXzUKw4d3mW/QG3g/Elf
 aUfCY+3WWR/Fs+XT5ZDasJDewwO4j5wYgO8VYeyTX08jobcxC/osqoMtGUqsljwJ
 CTWMYSD8MTXEnOIZFK9sgjg0AoJYVDE8SXN/zx+7K7iVk9+5xQTkuL/cCd+3/Nih
 73QqvwpRm0Tik4yLGcw+EJc2ttvNUsI5EEETloiGNaMeK1oOJvzSu8qhh0G9VdYo
 DWka5Yo+kLzwuUMbtzVSq288Un+RjbUIoqrqMFqm5QLqUYYg735IH2McIZvIEHEj
 o0vjudw/yxcpURGqV5cokeusIHex/LC8hItCwHY4U9959A2yOtiCs/Bi7LIj3lAu
 FO5gTlGDHA==
 =KSaR
 -----END PGP SIGNATURE-----

Merge tag 'for-5.4/io_uring-2019-09-15' of git://git.kernel.dk/linux-block

Pull io_uring updates from Jens Axboe:

 - Allocate SQ/CQ ring together, more efficient. Expose this through a
   feature flag as well, so we can reduce the number of mmaps by 1
   (Hristo and me)

 - Fix for sequence logic with SQ thread (Jackie).

 - Add support for links with drain commands (Jackie).

 - Improved async merging (me)

 - Improved buffered async write performance (me)

 - Support SQ poll wakeup + event get in single io_uring_enter() (me)

 - Support larger SQ ring size. For epoll conversions, the 4k limit was
   too small for some prod workloads (Daniel).

 - put_user_page() usage (John)

* tag 'for-5.4/io_uring-2019-09-15' of git://git.kernel.dk/linux-block:
  io_uring: increase IORING_MAX_ENTRIES to 32K
  io_uring: make sqpoll wakeup possible with getevents
  io_uring: extend async work merging
  io_uring: limit parallelism of buffered writes
  io_uring: add io_queue_async_work() helper
  io_uring: optimize submit_and_wait API
  io_uring: add support for link with drain
  io_uring: fix wrong sequence setting logic
  io_uring: expose single mmap capability
  io_uring: allocate the two rings together
  fs/io_uring.c: convert put_page() to put_user_page*()
2019-09-17 16:50:19 -07:00
arch Merge branch 'for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu 2019-09-17 15:58:50 -07:00
block Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-17 12:35:15 -07:00
certs Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs" 2019-07-10 18:43:43 -07:00
crypto USB / PHY patches for 5.3-rc1 2019-07-11 15:40:06 -07:00
Documentation It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
drivers It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
fs for-5.4/io_uring-2019-09-15 2019-09-17 16:50:19 -07:00
include for-5.4/io_uring-2019-09-15 2019-09-17 16:50:19 -07:00
init Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-17 12:35:15 -07:00
ipc ipc: fix sparc64 ipc() wrapper 2019-09-07 21:42:25 +02:00
kernel Merge branch 'for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2019-09-17 15:57:22 -07:00
lib Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-17 12:35:15 -07:00
LICENSES LICENSES: Rename other to deprecated 2019-05-03 06:34:32 -06:00
mm Merge branch 'for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu 2019-09-17 15:58:50 -07:00
net Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-17 12:35:15 -07:00
samples auxdisplay: Fix a typo in cfag12864b-example.c 2019-08-08 20:00:18 +02:00
scripts It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
security keys: Fix missing null pointer check in request_key_auth_describe() 2019-09-05 14:19:25 -07:00
sound This is the bulk of changes in the GPIO subsystem for the 2019-09-16 14:06:50 -07:00
tools platform-drivers-x86 for v5.4-1 2019-09-16 19:59:10 -07:00
usr kbuild: enable arch/s390/include/uapi/asm/zcrypt.h for uapi header test 2019-07-23 10:45:46 +02:00
virt arm64 fixes for -rc7 2019-08-28 10:37:21 -07:00
.clang-format clang-format: Update with the latest for_each macro list 2019-08-31 10:00:51 +02:00
.cocciconfig
.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 .gitignore: Add compilation database file 2019-07-27 12:18:19 +09:00
.mailmap It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS Remove references to dead website. 2019-07-19 12:22:04 -07:00
Kbuild Kbuild updates for v5.1 2019-03-10 17:48:21 -07:00
Kconfig docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
MAINTAINERS It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
Makefile arm64 updates for 5.4: 2019-09-16 14:31:40 -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.