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authorIngo Molnar <mingo@kernel.org>2018-06-26 09:02:41 +0200
committerIngo Molnar <mingo@kernel.org>2018-06-26 09:02:41 +0200
commitf446474889c06883a3879faa0896e2359e812a6b (patch)
tree95634685d56dd532d1e9b73fbd07ca389296911b /kernel/trace/trace.c
parent01bdee64f9cf8e15f998bf52789ed9d0ebdfa621 (diff)
parent6f0d349d922ba44e4348a17a78ea51b7135965b1 (diff)
Merge branch 'linus' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/trace/trace.c')
-rw-r--r--kernel/trace/trace.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index c9336e98ac59..a0079b4c7a49 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1360,8 +1360,6 @@ __update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu)
void
update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu)
{
- struct ring_buffer *buf;
-
if (tr->stop_count)
return;
@@ -1375,9 +1373,7 @@ update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu)
arch_spin_lock(&tr->max_lock);
- buf = tr->trace_buffer.buffer;
- tr->trace_buffer.buffer = tr->max_buffer.buffer;
- tr->max_buffer.buffer = buf;
+ swap(tr->trace_buffer.buffer, tr->max_buffer.buffer);
__update_max_tr(tr, tsk, cpu);
arch_spin_unlock(&tr->max_lock);