From a9fcaaac37b3baba1343f906f52aeb65c4d4e356 Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (Red Hat)" Date: Fri, 6 Jun 2014 23:17:28 -0400 Subject: [PATCH] tracing: Fix memory leak on instance deletion When an instance is created, it also gets a snapshot ring buffer allocated (with minimum of pages). But when it is deleted the snapshot buffer is not. There was a helper function added to match the allocation of these ring buffers to a way to free them, but it wasn't used by the deletion of an instance. Using that helper function solves this memory leak. Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 26cfff38e2ab..16f7038d1f4d 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -6349,8 +6349,7 @@ static int instance_delete(const char *name) event_trace_del_tracer(tr); ftrace_destroy_function_files(tr); debugfs_remove_recursive(tr->dir); - free_percpu(tr->trace_buffer.data); - ring_buffer_free(tr->trace_buffer.buffer); + free_trace_buffers(tr); kfree(tr->name); kfree(tr);