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authorJoel Stanley <joel@jms.id.au>2019-04-08 12:35:00 +0930
committerJoel Stanley <joel@jms.id.au>2019-04-08 12:35:05 +0930
commit0b37f9a0bd24d9622f75d981feac67e72351b6e8 (patch)
treed40154b713e136a2d9dfb3fcb1903dd730bd234f /kernel/cgroup/rstat.c
parentdf66fbc97853fbba90a0bfa44de32f3d5f7602b4 (diff)
parent8b298d3a0bd5feeb47129c4889356b38b78ab231 (diff)
downloadtalos-obmc-linux-0b37f9a0bd24d9622f75d981feac67e72351b6e8.tar.gz
talos-obmc-linux-0b37f9a0bd24d9622f75d981feac67e72351b6e8.zip
Merge tag 'v5.0.7' into dev-5.0
This is the 5.0.7 stable release Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'kernel/cgroup/rstat.c')
-rw-r--r--kernel/cgroup/rstat.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/kernel/cgroup/rstat.c b/kernel/cgroup/rstat.c
index d503d1a9007c..bb95a35e8c2d 100644
--- a/kernel/cgroup/rstat.c
+++ b/kernel/cgroup/rstat.c
@@ -87,7 +87,6 @@ static struct cgroup *cgroup_rstat_cpu_pop_updated(struct cgroup *pos,
struct cgroup *root, int cpu)
{
struct cgroup_rstat_cpu *rstatc;
- struct cgroup *parent;
if (pos == root)
return NULL;
@@ -115,8 +114,8 @@ static struct cgroup *cgroup_rstat_cpu_pop_updated(struct cgroup *pos,
* However, due to the way we traverse, @pos will be the first
* child in most cases. The only exception is @root.
*/
- parent = cgroup_parent(pos);
- if (parent && rstatc->updated_next) {
+ if (rstatc->updated_next) {
+ struct cgroup *parent = cgroup_parent(pos);
struct cgroup_rstat_cpu *prstatc = cgroup_rstat_cpu(parent, cpu);
struct cgroup_rstat_cpu *nrstatc;
struct cgroup **nextp;
@@ -140,9 +139,12 @@ static struct cgroup *cgroup_rstat_cpu_pop_updated(struct cgroup *pos,
* updated stat.
*/
smp_mb();
+
+ return pos;
}
- return pos;
+ /* only happens for @root */
+ return NULL;
}
/* see cgroup_rstat_flush() */
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