cgroup: move check_for_release() invocation
authorTejun Heo <tj@kernel.org>
Thu, 15 Oct 2015 20:41:50 +0000 (16:41 -0400)
committerTejun Heo <tj@kernel.org>
Thu, 15 Oct 2015 20:41:50 +0000 (16:41 -0400)
commitad2ed2b35b76f01a876230a3a632efbc81d3fcd6
tree7f4f3288ba958bc8ef4f1d90cd80c31b791fe435
parent27bd4dbb8d51c476298e62bd088225317b7853de
cgroup: move check_for_release() invocation

To trigger release agent when the last task leaves the cgroup,
check_for_release() is called from put_css_set_locked(); however,
css_set being unlinked is being decoupled from task leaving the cgroup
and the correct condition to test is cgroup->nr_populated dropping to
zero which check_for_release() is already updated to test.

This patch moves check_for_release() invocation from
put_css_set_locked() to cgroup_update_populated().

Signed-off-by: Tejun Heo <tj@kernel.org>
kernel/cgroup.c