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authorChristoph Hellwig <hch@lst.de>2017-04-05 19:21:05 +0200
committerJens Axboe <axboe@fb.com>2017-04-08 11:25:38 -0600
commitac62d6208a7977107a47be4eb8566d6e5034b5f5 (patch)
treecac7e46e26b67193cefb333d9aad2f8e87ecfee7 /drivers/md/dm-rq.c
parent0f5d690f7bf1b1a5354c61ac5b9d69a4329e218f (diff)
downloadlinux-ac62d6208a7977107a47be4eb8566d6e5034b5f5.tar.bz2
dm: support REQ_OP_WRITE_ZEROES
Copy & paste from the REQ_OP_WRITE_SAME code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/md/dm-rq.c')
-rw-r--r--drivers/md/dm-rq.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index d19af1d21f4c..e60f1b6845be 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -298,9 +298,14 @@ static void dm_done(struct request *clone, int error, bool mapped)
r = rq_end_io(tio->ti, clone, error, &tio->info);
}
- if (unlikely(r == -EREMOTEIO && (req_op(clone) == REQ_OP_WRITE_SAME) &&
- !clone->q->limits.max_write_same_sectors))
- disable_write_same(tio->md);
+ if (unlikely(r == -EREMOTEIO)) {
+ if (req_op(clone) == REQ_OP_WRITE_SAME &&
+ !clone->q->limits.max_write_same_sectors)
+ disable_write_same(tio->md);
+ if (req_op(clone) == REQ_OP_WRITE_ZEROES &&
+ !clone->q->limits.max_write_zeroes_sectors)
+ disable_write_zeroes(tio->md);
+ }
if (r <= 0)
/* The target wants to complete the I/O */