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)
         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;