From: Alasdair G Kergon Date: Wed, 3 Apr 2013 22:52:23 +0000 (+1100) Subject: Correct the documented requirement on the return code from dm cache policy X-Git-Tag: next-20130404~57^2 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c9bfbecd7999d9c448ccb8ba00dd70065c304dd1;p=karo-tx-linux.git Correct the documented requirement on the return code from dm cache policy lookup functions stated in the policy module header file. Signed-off-by: Alasdair G Kergon --- diff --git a/drivers/md/dm-cache-policy.h b/drivers/md/dm-cache-policy.h index 558bdfdabf5f..33369ca9614f 100644 --- a/drivers/md/dm-cache-policy.h +++ b/drivers/md/dm-cache-policy.h @@ -130,8 +130,8 @@ struct dm_cache_policy { * * Must not block. * - * Returns 1 iff in cache, 0 iff not, < 0 on error (-EWOULDBLOCK - * would be typical). + * Returns 0 if in cache, -ENOENT if not, < 0 for other errors + * (-EWOULDBLOCK would be typical). */ int (*lookup)(struct dm_cache_policy *p, dm_oblock_t oblock, dm_cblock_t *cblock);