Messages in this thread Patch in this message | | | Date | Tue, 29 Nov 2016 10:06:21 -0500 | From | Steven Rostedt <> | Subject | [for-next][PATCH 7/8] ring-buffer: Froce rb_update_write_stamp() to be inlined |
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From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
The function rb_update_write_stamp() is in the hotpath of the ring buffer recording. Make sure that it is inlined as well. There's not many places that call it.
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> --- kernel/trace/ring_buffer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 04068c0ed927..04579a0c7711 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -2486,7 +2486,7 @@ static inline void rb_event_discard(struct ring_buffer_event *event) event->time_delta = 1; } -static inline bool +static __always_inline bool rb_event_is_commit(struct ring_buffer_per_cpu *cpu_buffer, struct ring_buffer_event *event) { @@ -2500,7 +2500,7 @@ rb_event_is_commit(struct ring_buffer_per_cpu *cpu_buffer, rb_commit_index(cpu_buffer) == index; } -static void +static __always_inline void rb_update_write_stamp(struct ring_buffer_per_cpu *cpu_buffer, struct ring_buffer_event *event) { -- 2.10.2
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