diff options
| -rw-r--r-- | lib/ratelimit.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/ratelimit.c b/lib/ratelimit.c index 0e2c28e8a0c..69bfcacda16 100644 --- a/lib/ratelimit.c +++ b/lib/ratelimit.c @@ -28,7 +28,15 @@ int __ratelimit(struct ratelimit_state *rs) if (!rs->interval) return 1; - spin_lock_irqsave(&rs->lock, flags); + /* + * If we contend on this state's lock then almost + * by definition we are too busy to print a message, + * in addition to the one that will be printed by + * the entity that is holding the lock already: + */ + if (!spin_trylock_irqsave(&rs->lock, flags)) + return 1; + if (!rs->begin) rs->begin = jiffies; |