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authorPaul Mundt <lethal@linux-sh.org>2010-04-26 16:08:27 +0900
committerPaul Mundt <lethal@linux-sh.org>2010-04-26 16:08:27 +0900
commite19553427c2e8fdb04fdd98e407164bb59a840ba (patch)
tree5332234b2dad07c03c27e4608afb16f297f41e61 /lib/ratelimit.c
parent35f6cd4a06432034665a1499ca4b022437423aac (diff)
parent83515bc7df812555e20cda48614674e2f346f9f5 (diff)
Merge branch 'sh/stable-updates'
Conflicts: arch/sh/kernel/dwarf.c drivers/dma/shdma.c Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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 09f5ce1810dc..027a03f4c56d 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;