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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2016-11-23 20:28:38 -0500
committerSteven Rostedt <rostedt@goodmis.org>2016-11-23 20:30:51 -0500
commit52ffabe3848a1ebd944cdf7801a77247b1cb46d5 (patch)
treee1c9162bdf75f41d279a1361f240ead9cce2850c /kernel/trace/trace_hwlat.c
parent4239174570da080f3623724d97062bf55de7e36b (diff)
tracing: Make __buffer_unlock_commit() always_inline
The function __buffer_unlock_commit() is called in a few places outside of trace.c. But for the most part, it should really be inlined, as it is in the hot path of the trace_events. For the callers outside of trace.c, create a new function trace_buffer_unlock_commit_nostack(), as the reason it was used was to avoid the stack tracing that trace_buffer_unlock_commit() could do. Link: http://lkml.kernel.org/r/20161121183700.GW26852@two.firstfloor.org Reported-by: Andi Kleen <andi@firstfloor.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_hwlat.c')
-rw-r--r--kernel/trace/trace_hwlat.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace_hwlat.c b/kernel/trace/trace_hwlat.c
index b97286c48735..775569ec50d0 100644
--- a/kernel/trace/trace_hwlat.c
+++ b/kernel/trace/trace_hwlat.c
@@ -127,7 +127,7 @@ static void trace_hwlat_sample(struct hwlat_sample *sample)
entry->nmi_count = sample->nmi_count;
if (!call_filter_check_discard(call, entry, buffer, event))
- __buffer_unlock_commit(buffer, event);
+ trace_buffer_unlock_commit_nostack(buffer, event);
}
/* Macros to encapsulate the time capturing infrastructure */