if READA is intentionally ignored, that is not EIO, but EWOULDBLOCK
 

Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
---
drivers/md/dm-zero.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/md/dm-zero.c b/drivers/md/dm-zero.c
index bdec206..7b9f5e5 100644
--- a/drivers/md/dm-zero.c
+++ b/drivers/md/dm-zero.c
@@ -37,7 +37,7 @@ static int zero_map(struct dm_target *ti, struct bio *bio,
break;
case READA:
/* readahead of null bytes only wastes buffer cache */
- return -EIO;
+ return -EWOULDBLOCK;
case WRITE:
/* writes get silently dropped */
break;
--
1.5.5.GIT


--
: Lars Ellenberg Tel +43-1-8178292-55 :
: LINBIT Information Technologies GmbH Fax +43-1-8178292-82 :
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