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authorMikulas Patocka <mpatocka@redhat.com>2014-02-18 09:57:22 -0500
committerMike Snitzer <snitzer@redhat.com>2014-02-18 10:48:57 -0500
commitf3a44fe0608eb628e1f8f6e3540462e6d171a745 (patch)
tree6e9dae9298d355d238d8b95d9b756f431d6f830e /drivers/md
parentd73f9907294c670da14baea3fb31be27879e818e (diff)
downloadblackbird-op-linux-f3a44fe0608eb628e1f8f6e3540462e6d171a745.tar.gz
blackbird-op-linux-f3a44fe0608eb628e1f8f6e3540462e6d171a745.zip
dm raid1: fix immutable biovec related BUG when retrying read bio
When restoring bi_end_io, increase bi_remaining before retrying the bio to avoid BUG_ON(atomic_read(&bio->bi_remaining) <= 0) in bio_endio(). Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-raid1.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index f284e0bfb25f..7dfdb5c746d6 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1244,6 +1244,9 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio, int error)
dm_bio_restore(bd, bio);
bio_record->details.bi_bdev = NULL;
+
+ atomic_inc(&bio->bi_remaining);
+
queue_bio(ms, bio, rw);
return DM_ENDIO_INCOMPLETE;
}
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