cgroup: rstat: explicitly put loop variant in while

Instead of do while unconditionally, let's put the loop variant in while. Signed-off-by: Wei Yang <[email protected]> Reviewed-by: Michal Koutný <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
josf · Jan 6, 2022 · 0da41f7 · 0da41f7
1 parent 1815775
commit 0da41f7
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/kernel/cgroup/rstat.c b/kernel/cgroup/rstat.c
@@ -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;
 			}