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authorSteven Rostedt <srostedt@redhat.com>2012-11-30 10:41:57 -0500
committerSteven Rostedt <rostedt@goodmis.org>2013-01-21 13:22:29 -0500
commit771e03842a9e98a1c2013ca1ed8bb2793488f3e5 (patch)
tree6d133d84777c6161520ab00a8ce8f016fd1bf261 /kernel/trace/ring_buffer.c
parent418c59e49ddc77fcb7054f2c8d52c9d47403b43e (diff)
ring-buffer: Remove unnecessary recusive call in rb_advance_iter()
The original ring-buffer code had special checks at the start of rb_advance_iter() and instead of repeating them again at the end of the function if a certain condition existed, I just did a recursive call to rb_advance_iter() because the special condition would cause rb_advance_iter() to return early (after the checks). But as things have changed, the special checks no longer exist and the only thing done for the special_condition is to call rb_inc_iter() and return. Instead of doing a confusing recursive call, just call rb_inc_iter instead. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/ring_buffer.c')
-rw-r--r--kernel/trace/ring_buffer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index ce8514feedcd..6ff9cc4658ed 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -3425,7 +3425,7 @@ static void rb_advance_iter(struct ring_buffer_iter *iter)
/* check for end of page padding */
if ((iter->head >= rb_page_size(iter->head_page)) &&
(iter->head_page != cpu_buffer->commit_page))
- rb_advance_iter(iter);
+ rb_inc_iter(iter);
}
static int rb_lost_events(struct ring_buffer_per_cpu *cpu_buffer)