diff options
Diffstat (limited to 'lib/ratelimit.c')
-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 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 | ||