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-rw-r--r--lib/ratelimit.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/ratelimit.c b/lib/ratelimit.c
index 0e2c28e8a0ca..69bfcacda16d 100644
--- a/lib/ratelimit.c
+++ b/lib/ratelimit.c
@@ -28,7 +28,15 @@ int __ratelimit(struct ratelimit_state *rs)
28 if (!rs->interval) 28 if (!rs->interval)
29 return 1; 29 return 1;
30 30
31 spin_lock_irqsave(&rs->lock, flags); 31 /*
32 * If we contend on this state's lock then almost
33 * by definition we are too busy to print a message,
34 * in addition to the one that will be printed by
35 * the entity that is holding the lock already:
36 */
37 if (!spin_trylock_irqsave(&rs->lock, flags))
38 return 1;
39
32 if (!rs->begin) 40 if (!rs->begin)
33 rs->begin = jiffies; 41 rs->begin = jiffies;
34 42