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perf: Do not allow optimized switch for non-cloned events
[platform/adaptation/renesas_rcar/renesas_kernel.git]
/
kernel
/
events
/
core.c
diff --git
a/kernel/events/core.c
b/kernel/events/core.c
index
0e7fea7
..
f774e93
100644
(file)
--- a/
kernel/events/core.c
+++ b/
kernel/events/core.c
@@
-2311,7
+2311,7
@@
static void perf_event_context_sched_out(struct task_struct *task, int ctxn,
next_parent = rcu_dereference(next_ctx->parent_ctx);
/* If neither context have a parent context; they cannot be clones. */
next_parent = rcu_dereference(next_ctx->parent_ctx);
/* If neither context have a parent context; they cannot be clones. */
- if (!parent
&&
!next_parent)
+ if (!parent
||
!next_parent)
goto unlock;
if (next_parent == ctx || next_ctx == parent || next_parent == parent) {
goto unlock;
if (next_parent == ctx || next_ctx == parent || next_parent == parent) {