Messages in this thread | | | Subject | Re: [PATCHSET] cgroup: use static_keys for subsystem enabled and on_dfl tests | From | Zefan Li <> | Date | Fri, 18 Sep 2015 17:14:07 +0800 |
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On 2015/9/16 9:51, Tejun Heo wrote: > 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(-) >
Acked-by: Zefan Li <lizefan@huawei.com>
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