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Merge branch 'tip/tracing/ftrace' of git://git.kernel.org/pub/scm/lin…
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…ux/kernel/git/rostedt/linux-2.6-trace into tracing/ftrace
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Ingo Molnar committed Feb 13, 2009
2 parents 1c511f7 + 45141d4 commit d351c8d
Showing 1 changed file with 5 additions and 5 deletions.
10 changes: 5 additions & 5 deletions kernel/trace/ring_buffer.c
Original file line number Diff line number Diff line change
Expand Up @@ -1017,7 +1017,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
*/
if (unlikely(in_nmi())) {
if (!__raw_spin_trylock(&cpu_buffer->lock))
goto out_unlock;
goto out_reset;
} else
__raw_spin_lock(&cpu_buffer->lock);

Expand All @@ -1030,7 +1030,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,

/* we grabbed the lock before incrementing */
if (RB_WARN_ON(cpu_buffer, next_page == reader_page))
goto out_unlock;
goto out_reset;

/*
* If for some reason, we had an interrupt storm that made
Expand All @@ -1039,12 +1039,12 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
*/
if (unlikely(next_page == commit_page)) {
WARN_ON_ONCE(1);
goto out_unlock;
goto out_reset;
}

if (next_page == head_page) {
if (!(buffer->flags & RB_FL_OVERWRITE))
goto out_unlock;
goto out_reset;

/* tail_page has not moved yet? */
if (tail_page == cpu_buffer->tail_page) {
Expand Down Expand Up @@ -1118,7 +1118,7 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,

return event;

out_unlock:
out_reset:
/* reset write */
if (tail <= BUF_PAGE_SIZE)
local_set(&tail_page->write, tail);
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