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-rw-r--r--drivers/md/dm.c15
1 files changed, 0 insertions, 15 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 021b8ffc9734..ad2e0bbeb559 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -952,14 +952,6 @@ void disable_discard(struct mapped_device *md)
blk_queue_flag_clear(QUEUE_FLAG_DISCARD, md->queue);
}
-void disable_write_same(struct mapped_device *md)
-{
- struct queue_limits *limits = dm_get_queue_limits(md);
-
- /* device doesn't really support WRITE SAME, disable it */
- limits->max_write_same_sectors = 0;
-}
-
void disable_write_zeroes(struct mapped_device *md)
{
struct queue_limits *limits = dm_get_queue_limits(md);
@@ -986,9 +978,6 @@ static void clone_endio(struct bio *bio)
if (bio_op(bio) == REQ_OP_DISCARD &&
!q->limits.max_discard_sectors)
disable_discard(md);
- else if (bio_op(bio) == REQ_OP_WRITE_SAME &&
- !q->limits.max_write_same_sectors)
- disable_write_same(md);
else if (bio_op(bio) == REQ_OP_WRITE_ZEROES &&
!q->limits.max_write_zeroes_sectors)
disable_write_zeroes(md);
@@ -1429,7 +1418,6 @@ static bool is_abnormal_io(struct bio *bio)
switch (bio_op(bio)) {
case REQ_OP_DISCARD:
case REQ_OP_SECURE_ERASE:
- case REQ_OP_WRITE_SAME:
case REQ_OP_WRITE_ZEROES:
r = true;
break;
@@ -1450,9 +1438,6 @@ static bool __process_abnormal_io(struct clone_info *ci, struct dm_target *ti,
case REQ_OP_SECURE_ERASE:
num_bios = ti->num_secure_erase_bios;
break;
- case REQ_OP_WRITE_SAME:
- num_bios = ti->num_write_same_bios;
- break;
case REQ_OP_WRITE_ZEROES:
num_bios = ti->num_write_zeroes_bios;
break;