Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[karo-tx-linux.git] / kernel / events / ring_buffer.c

diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index 182bc30899d5b095d6e317327065eb7f8409795d..b5d1ea79c5953e2a2c7a5ee843de5f76ad47077a 100644 (file)
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -141,7 +141,7 @@ int perf_output_begin(struct perf_output_handle *handle,
        perf_output_get_handle(handle);
 
        do {
-               tail = READ_ONCE_CTRL(rb->user_page->data_tail);
+               tail = READ_ONCE(rb->user_page->data_tail);
                offset = head = local_read(&rb->head);
                if (!rb->overwrite &&
                    unlikely(CIRC_SPACE(head, tail, perf_data_size(rb)) < size))