From: Tejun Heo <tj@kernel.org>
To: lizefan@huawei.com, hannes@cmpxchg.org
Cc: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-team@fb.com
Subject: [PATCHSET] cgroup: use static_keys for subsystem enabled and on_dfl tests
Date: Tue, 15 Sep 2015 21:51:21 -0400 [thread overview]
Message-ID: <1442368285-16306-1-git-send-email-tj@kernel.org> (raw)
cgroup_subsys->disabled and cgroup_on_dfl() tests are likely to be
used in hot paths and seldom change. The former is set once during
boot and the latter only when a controller is migrated between the
default hierarchy and traditional ones.
This patchset makes these tests static_key based and contains the
following four patches.
0001-jump_label-make-static_key_enabled-work-on-static_ke.patch
0002-cgroup-implement-static_key-based-cgroup_subsys_enab.patch
0003-cgroup-replace-cgroup_subsys-disabled-tests-with-cgr.patch
0004-cgroup-replace-cgroup_on_dfl-tests-in-controllers-wi.patch
0001 is a prep patch in jump_label. 0002 adds the needed static_keys.
0003-0004 convert the existing usages and drop the old tests.
This patchset is on top of v4.3-rc1 and is availalbe in the following
git branch.
git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git review-jump-labels
diffstat follows. Thanks.
block/blk-throttle.c | 2
block/cfq-iosched.c | 4 -
include/linux/cgroup-defs.h | 1
include/linux/cgroup.h | 79 +++++++---------------------
include/linux/hugetlb_cgroup.h | 4 -
include/linux/jump_label.h | 18 +++---
include/linux/memcontrol.h | 4 -
kernel/cgroup.c | 113 ++++++++++++++++++++++++++++++++++++++---
kernel/cpuset.c | 23 ++++----
mm/memcontrol.c | 4 -
10 files changed, 157 insertions(+), 95 deletions(-)
--
tejun
next reply other threads:[~2015-09-16 1:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-16 1:51 Tejun Heo [this message]
2015-09-16 1:51 ` [PATCH 1/4] jump_label: make static_key_enabled() work on static_key_true/false types too Tejun Heo
2015-09-17 8:59 ` Peter Zijlstra
2015-09-17 15:27 ` Tejun Heo
2015-09-17 15:37 ` Peter Zijlstra
2015-09-16 1:51 ` [PATCH 2/4] cgroup: implement static_key based cgroup_subsys_enabled() and cgroup_subsys_on_dfl() Tejun Heo
2015-09-16 1:51 ` [PATCH 3/4] cgroup: replace cgroup_subsys->disabled tests with cgroup_subsys_enabled() Tejun Heo
2015-09-16 1:51 ` [PATCH 4/4] cgroup: replace cgroup_on_dfl() tests in controllers with cgroup_subsys_on_dfl() Tejun Heo
2015-09-18 9:14 ` [PATCHSET] cgroup: use static_keys for subsystem enabled and on_dfl tests Zefan Li
2015-09-18 15:55 ` Tejun Heo
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