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Davidlohr Bueso b8fd998384 sysvipc: unteach ids->next_id for !CHECKPOINT_RESTORE 
Patch series "sysvipc: ipc-key management improvements".

Here are a few improvements I spotted while eyeballing Guillaume's
rhashtable implementation for ipc keys.  The first and fourth patches
are the interesting ones, the middle two are trivial.

This patch (of 4):

The next_id object-allocation functionality was introduced in commit
03f5956680 ("ipc: add sysctl to specify desired next object id").

Given that these new entries are _only_ exported under the
CONFIG_CHECKPOINT_RESTORE option, there is no point for the common case
to even know about ->next_id.  As such rewrite ipc_buildid() such that
it can do away with the field as well as unnecessary branches when
adding a new identifier.  The end result also better differentiates both
cases, so the code ends up being cleaner; albeit the small duplications
regarding the default case.

[akpm@linux-foundation.org: coding-style fixes]
Link: http://lkml.kernel.org/r/20170831172049.14576-2-dave@stgolabs.net
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-11-17 16:10:04 -08:00
arch pid: remove pidhash 2017-11-17 16:10:04 -08:00
block
certs
crypto
Documentation kcov: update documentation 2017-11-17 16:10:04 -08:00
drivers drivers/watchdog: make use of devm_register_reboot_notifier() 2017-11-17 16:10:04 -08:00
firmware
fs pid: replace pid bitmap implementation with IDR API 2017-11-17 16:10:03 -08:00
include sysvipc: unteach ids->next_id for !CHECKPOINT_RESTORE 2017-11-17 16:10:04 -08:00
init initramfs: use time64_t timestamps 2017-11-17 16:10:04 -08:00
ipc sysvipc: unteach ids->next_id for !CHECKPOINT_RESTORE 2017-11-17 16:10:04 -08:00
kernel kernel/reboot.c: add devm_register_reboot_notifier() 2017-11-17 16:10:04 -08:00
lib Makefile: support flag -fsanitizer-coverage=trace-cmp 2017-11-17 16:10:04 -08:00
mm mm, compaction: remove unneeded pageblock_skip_persistent() checks 2017-11-17 16:10:00 -08:00
net
samples
scripts Makefile: support flag -fsanitizer-coverage=trace-cmp 2017-11-17 16:10:04 -08:00
security
sound
tools tools/lib/traceevent/parse-filter.c: clean up clang build warning 2017-11-17 16:10:02 -08:00
usr
virt
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS libnvdimm for 4.15 2017-11-17 09:51:57 -08:00
Makefile Makefile: support flag -fsanitizer-coverage=trace-cmp 2017-11-17 16:10:04 -08:00
README

README 

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.