diff options
| author |   Roman Gushchin <guro@fb.com> | 2019-04-19 10:03:02 -0700 |
|---|---|---|
| committer |   Tejun Heo <tj@kernel.org> | 2019-04-19 11:26:48 -0700 |
| commit | aade7f9efba098859681f8e88d81a5b44ad09b12 (patch) | |
| tree | ec4ba260be6dc54206cd5184a2a646fda1e44a77 /kernel/cgroup/cgroup-v1.c | |
| parent | cgroup: rename freezer.c into legacy_freezer.c (diff) | |
| download | linux-dev-aade7f9efba098859681f8e88d81a5b44ad09b12.tar.xz linux-dev-aade7f9efba098859681f8e88d81a5b44ad09b12.zip | |
cgroup: implement __cgroup_task_count() helper
The helper is identical to the existing cgroup_task_count()
except it doesn't take the css_set_lock by itself, assuming
that the caller does.
Also, move cgroup_task_count() implementation into
kernel/cgroup/cgroup.c, as there is nothing specific to cgroup v1.
Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: kernel-team@fb.com
Diffstat (limited to '')
| -rw-r--r-- | kernel/cgroup/cgroup-v1.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c index c126b34fd4ff..68ca5de7ec27 100644 --- a/kernel/cgroup/cgroup-v1.c +++ b/kernel/cgroup/cgroup-v1.c @@ -342,22 +342,6 @@ static struct cgroup_pidlist *cgroup_pidlist_find_create(struct cgroup *cgrp, return l; } -/** - * cgroup_task_count - count the number of tasks in a cgroup. - * @cgrp: the cgroup in question - */ -int cgroup_task_count(const struct cgroup *cgrp) -{ - int count = 0; - struct cgrp_cset_link *link; - - spin_lock_irq(&css_set_lock); - list_for_each_entry(link, &cgrp->cset_links, cset_link) - count += link->cset->nr_tasks; - spin_unlock_irq(&css_set_lock); - return count; -} - /* * Load a cgroup's pidarray with either procs' tgids or tasks' pids */ |