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From: Lars Ellenberg <lars.ellenberg@linbit.com>
To: dm-devel@redhat.com
Subject: [PATCH] if READA is intentionally ignored, that is not EIO, but EWOULDBLOCK
Date: Fri, 25 Jul 2008 14:54:31 +0200	[thread overview]
Message-ID: <20080725125431.GD28245@soda.linbit> (raw)

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 :
: Vivenotgasse 48, A-1120 Vienna/Europe    http://www.linbit.com :

                 reply	other threads:[~2008-07-25 12:54 UTC|newest]

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