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authorIngo Molnar <mingo@elte.hu>2008-05-12 21:20:46 +0200
committerThomas Gleixner <tglx@linutronix.de>2008-05-23 20:42:12 +0200
commitd4c5a2f5870939d837293de87b41dda0012a4572 (patch)
tree46512c24ff245052e60b6d2156cd9992d272ff11 /kernel/trace/trace.h
parentb3806b4316306dc9c542eff6c23d7d42918f3504 (diff)
ftrace: fix locking
we can hold all cpu trace buffer locks at once - put each into a separate lock class. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/trace/trace.h')
-rw-r--r--kernel/trace/trace.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 29a7ea59de50..b0408356f0e0 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -56,6 +56,7 @@ struct trace_array_cpu {
struct list_head trace_pages;
atomic_t disabled;
spinlock_t lock;
+ struct lock_class_key lock_key;
cycle_t time_offset;
/* these fields get copied into max-trace: */