summaryrefslogtreecommitdiff
path: root/kernel/sched/sched.h
diff options
context:
space:
mode:
authorakpm <akpm@linux-foundation.org>2022-06-27 10:31:34 -0700
committerakpm <akpm@linux-foundation.org>2022-06-27 10:31:34 -0700
commit46a3b1125308f8f90a065eeecfafd2a96b01a36c (patch)
tree6e080118fbad5aa217d160cedf02f10108ce3bf2 /kernel/sched/sched.h
parent6edda04ccc7cfb281d139e352dbd5dd933bd2751 (diff)
parent03c765b0e3b4cb5063276b086c76f7a612856a9a (diff)
Merge branch 'master' into mm-stable
Diffstat (limited to 'kernel/sched/sched.h')
-rw-r--r--kernel/sched/sched.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 01259611beb9..47b89a0fc6e5 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1693,6 +1693,11 @@ queue_balance_callback(struct rq *rq,
{
lockdep_assert_rq_held(rq);
+ /*
+ * Don't (re)queue an already queued item; nor queue anything when
+ * balance_push() is active, see the comment with
+ * balance_push_callback.
+ */
if (unlikely(head->next || rq->balance_callback == &balance_push_callback))
return;