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authorMichal Marek <mmarek@suse.cz>2010-08-04 13:59:13 +0200
committerMichal Marek <mmarek@suse.cz>2010-08-04 13:59:13 +0200
commit772320e84588dcbe1600ffb83e5f328f2209ac2a (patch)
treea7de21b79340aeaa17c58126f6b801b82c77b53a /lib/ratelimit.c
parent1ce53adf13a54375d2a5c7cdbe341b2558389615 (diff)
parent9fe6206f400646a2322096b56c59891d530e8d51 (diff)
Merge commit 'v2.6.35' into kbuild/kbuild
Conflicts: arch/powerpc/Makefile
Diffstat (limited to 'lib/ratelimit.c')
-rw-r--r--lib/ratelimit.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/lib/ratelimit.c b/lib/ratelimit.c
index 09f5ce1810d..027a03f4c56 100644
--- a/lib/ratelimit.c
+++ b/lib/ratelimit.c
@@ -16,9 +16,14 @@
/*
* __ratelimit - rate limiting
* @rs: ratelimit_state data
+ * @func: name of calling function
*
- * This enforces a rate limit: not more than @rs->ratelimit_burst callbacks
- * in every @rs->ratelimit_jiffies
+ * This enforces a rate limit: not more than @rs->burst callbacks
+ * in every @rs->interval
+ *
+ * RETURNS:
+ * 0 means callbacks will be suppressed.
+ * 1 means go ahead and do it.
*/
int ___ratelimit(struct ratelimit_state *rs, const char *func)
{
@@ -35,7 +40,7 @@ int ___ratelimit(struct ratelimit_state *rs, const char *func)
* the entity that is holding the lock already:
*/
if (!spin_trylock_irqsave(&rs->lock, flags))
- return 1;
+ return 0;
if (!rs->begin)
rs->begin = jiffies;