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Filename Latest commit message Latest commit date
Mathieu Desnoyers c6d68c1c4a sched/membarrier: Skip IPIs when mm->mm_users == 1
If there is only a single mm_user for the mm, the private expedited
membarrier command can skip the IPIs, because only a single thread
is using the mm.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Kirill Tkhai <tkhai@yandex.ru>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King - ARM Linux admin <linux@armlinux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190919173705.2181-7-mathieu.desnoyers@efficios.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-09-25 17:42:31 +02:00
arch Merge branch 'x86-vmware-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-16 19:40:24 -07:00
block
certs
crypto
Documentation platform-drivers-x86 for v5.4-1 2019-09-16 19:59:10 -07:00
drivers platform-drivers-x86 for v5.4-1 2019-09-16 19:59:10 -07:00
fs sched/membarrier: Fix p->mm->membarrier_state racy load 2019-09-25 17:42:30 +02:00
include sched/membarrier: Fix p->mm->membarrier_state racy load 2019-09-25 17:42:30 +02:00
init
ipc
kernel sched/membarrier: Skip IPIs when mm->mm_users == 1 2019-09-25 17:42:31 +02:00
lib
LICENSES
mm
net
samples
scripts
security
sound
tools selftests, sched/membarrier: Add multi-threaded test 2019-09-25 17:42:31 +02:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS platform-drivers-x86 for v5.4-1 2019-09-16 19:59:10 -07:00
Makefile
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.