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Jens Axboe 6206f0e180 io-wq: shrink io_wq_work a bit
Currently we're using 40 bytes for the io_wq_work structure, and 16 of
those is the doubly link list node. We don't need doubly linked lists,
we always add to tail to keep things ordered, and any other use case
is list traversal with deletion. For the deletion case, we can easily
support any node deletion by keeping track of the previous entry.

This shrinks io_wq_work to 32 bytes, and subsequently io_kiock from
io_uring to 216 to 208 bytes.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-11-26 15:02:56 -07:00
Documentation * Rework error logging functions to accept a count of errors parameter (Hanna Hawa) 2019-11-25 18:07:36 -08:00
LICENSES LICENSES: Rename other to deprecated 2019-05-03 06:34:32 -06:00
arch ARM: 2019-11-25 18:02:36 -08:00
block for-5.5/disk-revalidate-20191122 2019-11-25 11:37:01 -08:00
certs PKCS#7: Refactor verify_pkcs7_signature() 2019-08-05 18:40:18 -04:00
crypto KEYS: trusted: Create trusted keys subsystem 2019-11-12 21:45:37 +02:00
drivers * Rework error logging functions to accept a count of errors parameter (Hanna Hawa) 2019-11-25 18:07:36 -08:00
fs io-wq: shrink io_wq_work a bit 2019-11-26 15:02:56 -07:00
include io_uring: add support for IORING_OP_CONNECT 2019-11-25 19:56:11 -07:00
init arm64 updates for 5.5: 2019-11-25 15:39:19 -08:00
ipc ipc/sem.c: convert to use built-in RCU list checking 2019-09-25 17:51:41 -07:00
kernel ARM: 2019-11-25 18:02:36 -08:00
lib linux-kselftest-5.5-rc1-kunit 2019-11-25 15:01:30 -08:00
mm arm64 updates for 5.5: 2019-11-25 15:39:19 -08:00
net net: disallow ancillary data for __sys_{send,recv}msg_file() 2019-11-26 15:02:53 -07:00
samples samples/bpf: fix build by setting HAVE_ATTR_TEST to zero 2019-10-31 21:39:15 +01:00
scripts arm64 fix for -rc8 / final 2019-11-15 09:14:23 -08:00
security KEYS: trusted: Remove set but not used variable 'keyhndl' 2019-11-12 21:45:37 +02:00
sound ALSA: usb-audio: Fix incorrect size check for processing/extension units 2019-11-14 18:01:22 +01:00
tools ARM: 2019-11-25 18:02:36 -08:00
usr kbuild: update compile-test header list for v5.4-rc2 2019-10-05 15:29:49 +09:00
virt KVM: Fix jump label out_free_* in kvm_init() 2019-11-23 11:29:17 +01:00
.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
.gitignore Modules updates for v5.4 2019-09-22 10:34:46 -07:00
.mailmap ARM: SoC fixes 2019-11-10 13:41:59 -08:00
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 The main MIPS changes for 5.5: 2019-11-25 17:42:56 -08:00
Makefile Linux 5.4 2019-11-24 16:32:01 -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.