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Diffstat (limited to 'kernel/events/core.c')
-rw-r--r--kernel/events/core.c28
1 files changed, 17 insertions, 11 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c
index ba89f40abe6..5e8c7b1389b 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -1505,25 +1505,31 @@ static int __perf_install_in_context(void *info)
struct perf_event_context *task_ctx = cpuctx->task_ctx;
struct task_struct *task = current;
- perf_ctx_lock(cpuctx, cpuctx->task_ctx);
+ perf_ctx_lock(cpuctx, task_ctx);
perf_pmu_disable(cpuctx->ctx.pmu);
/*
* If there was an active task_ctx schedule it out.
*/
- if (task_ctx) {
+ if (task_ctx)
task_ctx_sched_out(task_ctx);
- /*
- * If the context we're installing events in is not the
- * active task_ctx, flip them.
- */
- if (ctx->task && task_ctx != ctx) {
- raw_spin_unlock(&cpuctx->ctx.lock);
- raw_spin_lock(&ctx->lock);
- cpuctx->task_ctx = task_ctx = ctx;
- }
+
+ /*
+ * If the context we're installing events in is not the
+ * active task_ctx, flip them.
+ */
+ if (ctx->task && task_ctx != ctx) {
+ if (task_ctx)
+ raw_spin_unlock(&task_ctx->lock);
+ raw_spin_lock(&ctx->lock);
+ task_ctx = ctx;
+ }
+
+ if (task_ctx) {
+ cpuctx->task_ctx = task_ctx;
task = task_ctx->task;
}
+
cpu_ctx_sched_out(cpuctx, EVENT_ALL);
update_context_time(ctx);