ratelimit: add initialization macro

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 9 insertions, 3 deletions

diff --git a/include/linux/ratelimit.h b/include/linux/ratelimit.h
index 0a260d8a18bf..18102529254e 100644
--- a/include/linux/ratelimit.h
+++ b/include/linux/ratelimit.h
@@ -17,14 +17,20 @@ struct ratelimit_state {
         unsigned long   begin;
 };
 
-#define DEFINE_RATELIMIT_STATE(name, interval_init, burst_init)         \
-                                                                        \
-        struct ratelimit_state name = {                                 \
+#define RATELIMIT_STATE_INIT(name, interval_init, burst_init) {         \
                 .lock           = __RAW_SPIN_LOCK_UNLOCKED(name.lock),  \
                 .interval       = interval_init,                        \
                 .burst          = burst_init,                           \
         }
 
+#define RATELIMIT_STATE_INIT_DISABLED                                   \
+        RATELIMIT_STATE_INIT(ratelimit_state, 0, DEFAULT_RATELIMIT_BURST)
+
+#define DEFINE_RATELIMIT_STATE(name, interval_init, burst_init)         \
+                                                                        \
+        struct ratelimit_state name =                                   \
+                RATELIMIT_STATE_INIT(name, interval_init, burst_init)   \
+
 static inline void ratelimit_state_init(struct ratelimit_state *rs,
                                         int interval, int burst)
 {