Commit 0da41f73 authored by Wei Yang's avatar Wei Yang Committed by Tejun Heo
Browse files

cgroup: rstat: explicitly put loop variant in while 



Instead of do while unconditionally, let's put the loop variant in
while.

Signed-off-by: default avatarWei Yang <richard.weiyang@gmail.com>
Reviewed-by: default avatarMichal Koutný <mkoutny@suse.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 1815775e

kernel/cgroup/rstat.c

+1 −3
Original line number Diff line number Diff line
@@ -124,12 +124,10 @@ static struct cgroup *cgroup_rstat_cpu_pop_updated(struct cgroup *pos, 


			prstatc = cgroup_rstat_cpu(parent, cpu);

			nextp = &prstatc->updated_children;

			while (true) {

			while (*nextp != pos) {

				struct cgroup_rstat_cpu *nrstatc;



				nrstatc = cgroup_rstat_cpu(*nextp, cpu);

				if (*nextp == pos)

					break;

				WARN_ON_ONCE(*nextp == parent);

				nextp = &nrstatc->updated_next;

			}