tracing: Make TRACE_ITER_STOP_ON_FREE stop the correct buffer

Releasing the free_buffer file in an instance causes the global buffer
to be stopped when TRACE_ITER_STOP_ON_FREE is enabled. Operate on the
correct buffer.

Link: http://lkml.kernel.org/r/1375493777-17261-1-git-send-email-azl@google.com
Cc: Vaibhav Nagarnaik <vnagarnaik@google.com>
Cc: David Sharp <dhsharp@google.com>
Cc: Alexander Z Lam <lambchop468@gmail.com>
Cc: stable@vger.kernel.org # 3.10
Signed-off-by: Alexander Z Lam <azl@google.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index f5b35a5..531c9e6 100644 (file)
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -4469,7 +4469,7 @@ tracing_free_buffer_release(struct inode *inode, struct file *filp)
 
        /* disable tracing ? */
        if (trace_flags & TRACE_ITER_STOP_ON_FREE)
-               tracing_off();
+               tracer_tracing_off(tr);
        /* resize the ring buffer to 0 */
        tracing_resize_ring_buffer(tr, 0, RING_BUFFER_ALL_CPUS);