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authorIngo Molnar <mingo@kernel.org>2017-11-29 07:11:24 +0100
committerIngo Molnar <mingo@kernel.org>2017-11-29 07:11:24 +0100
commit4fc31ba13d052c2933bf91095c063cf9a39effd0 (patch)
treebeabb73c2fe245e6541126732895da62e55bc8ee /kernel/task_work.c
parent0e18dd12064e07519f7cbff4149ca7fff620cbed (diff)
parentb29c6ef7bb1257853c1e31616d84f55e561cf631 (diff)
Merge branch 'linus' into perf/urgent, to pick up dependent commits
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/task_work.c')
-rw-r--r--kernel/task_work.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/task_work.c b/kernel/task_work.c
index 5718b3ea202a..0fef395662a6 100644
--- a/kernel/task_work.c
+++ b/kernel/task_work.c
@@ -68,7 +68,7 @@ task_work_cancel(struct task_struct *task, task_work_func_t func)
* we raced with task_work_run(), *pprev == NULL/exited.
*/
raw_spin_lock_irqsave(&task->pi_lock, flags);
- while ((work = lockless_dereference(*pprev))) {
+ while ((work = READ_ONCE(*pprev))) {
if (work->func != func)
pprev = &work->next;
else if (cmpxchg(pprev, work, work->next) == work)