diff options
| author | Peter Zijlstra | 2016-01-21 22:24:16 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2016-02-29 09:41:50 +0100 |
| commit | 6fe1f348b3dd1f700f9630562b7d38afd6949568 (patch) | |
| tree | 2f160853005ebdb0d6468e0672241d03399c0ad8 /kernel/sched/sched.h | |
| parent | Linux 4.5-rc6 (diff) | |
| download | kernel-qcow2-linux-6fe1f348b3dd1f700f9630562b7d38afd6949568.tar.gz kernel-qcow2-linux-6fe1f348b3dd1f700f9630562b7d38afd6949568.tar.xz kernel-qcow2-linux-6fe1f348b3dd1f700f9630562b7d38afd6949568.zip | |
sched/cgroup: Fix cgroup entity load tracking tear-down
When a cgroup's CPU runqueue is destroyed, it should remove its
remaining load accounting from its parent cgroup.
The current site for doing so it unsuited because its far too late and
unordered against other cgroup removal (->css_free() will be, but we're also
in an RCU callback).
Put it in the ->css_offline() callback, which is the start of cgroup
destruction, right after the group has been made unavailable to
userspace. The ->css_offline() callbacks are called in hierarchical order
after the following v4.4 commit:
aa226ff4a1ce ("cgroup: make sure a parent css isn't offlined before its children")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20160121212416.GL6357@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/sched.h')
| -rw-r--r-- | kernel/sched/sched.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 10f16374df7f..30ea2d871ba7 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -313,7 +313,7 @@ extern int tg_nop(struct task_group *tg, void *data); extern void free_fair_sched_group(struct task_group *tg); extern int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent); -extern void unregister_fair_sched_group(struct task_group *tg, int cpu); +extern void unregister_fair_sched_group(struct task_group *tg); extern void init_tg_cfs_entry(struct task_group *tg, struct cfs_rq *cfs_rq, struct sched_entity *se, int cpu, struct sched_entity *parent); |