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cgroup: remove the superfluous judgment

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Remove the superfluous judgment since the function is
never called for a root cgroup, as suggested by Tejun.

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Shida Zhang <zhangshida@kylinos.cn>
Reviewed-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Shida Zhang 2022-05-18 09:36:47 +08:00 committed by Tejun Heo
parent 29ed17389c
commit b154a017c9
1 changed files with 1 additions and 1 deletions
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2
kernel/cgroup/cgroup.c
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@ -5685,7 +5685,7 @@ static int cgroup_destroy_locked(struct cgroup *cgrp)
css_clear_dir(&cgrp->self);
kernfs_remove(cgrp->kn);
if (parent && cgroup_is_threaded(cgrp))
if (cgroup_is_threaded(cgrp))
parent->nr_threaded_children--;
spin_lock_irq(&css_set_lock);