[Drbd-dev] [PATCH 19/27] rbd: remove the discard_zeroes_data flag

[Christoph Hellwig]

rbd only supports discarding on large alignments, so the zeroing code
would always fall back to explicit writings of zeroes.

Signed-off-by: Christoph Hellwig <hch at lst.de>
Reviewed-by: Hannes Reinecke <hare at suse.com>
---
 drivers/block/rbd.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index f24ade333e0c..089ac4179919 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -4380,7 +4380,6 @@ static int rbd_init_disk(struct rbd_device *rbd_dev)
 	q->limits.discard_granularity = segment_size;
 	q->limits.discard_alignment = segment_size;
 	blk_queue_max_discard_sectors(q, segment_size / SECTOR_SIZE);
-	q->limits.discard_zeroes_data = 1;
 
 	if (!ceph_test_opt(rbd_dev->rbd_client->client, NOCRC))
 		q->backing_dev_info->capabilities |= BDI_CAP_STABLE_WRITES;
-- 
2.11.0