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| author |   Tejun Heo <tj@kernel.org> | 2017-10-23 16:18:27 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2017-10-26 10:56:33 -0700 |
| commit | d41bf8c9deaed1a90b18d3ffc5639d4c19f0259a (patch) | |
| tree | 38573de8fb3d037a30430bd16af6806031c2036c /include/linux/cgroup-defs.h | |
| parent | sched: Implement interface for cgroup unified hierarchy (diff) | |
| download | linux-dev-d41bf8c9deaed1a90b18d3ffc5639d4c19f0259a.tar.xz linux-dev-d41bf8c9deaed1a90b18d3ffc5639d4c19f0259a.zip | |
cgroup, sched: Move basic cpu stats from cgroup.stat to cpu.stat
The basic cpu stat is currently shown with "cpu." prefix in
cgroup.stat, and the same information is duplicated in cpu.stat when
cpu controller is enabled. This is ugly and not very scalable as we
want to expand the coverage of stat information which is always
available.
This patch makes cgroup core always create "cpu.stat" file and show
the basic cpu stat there and calls the cpu controller to show the
extra stats when enabled. This ensures that the same information
isn't presented in multiple places and makes future expansion of basic
stats easier.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Diffstat (limited to 'include/linux/cgroup-defs.h')
| -rw-r--r-- | include/linux/cgroup-defs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index 3e55bbd31ad1..ada6df7b1f55 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -569,6 +569,8 @@ struct cgroup_subsys { void (*css_released)(struct cgroup_subsys_state *css); void (*css_free)(struct cgroup_subsys_state *css); void (*css_reset)(struct cgroup_subsys_state *css); + int (*css_extra_stat_show)(struct seq_file *seq, + struct cgroup_subsys_state *css); int (*can_attach)(struct cgroup_taskset *tset); void (*cancel_attach)(struct cgroup_taskset *tset); |