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@xxxxxx> Reviewed-by: Hannes Reinecke <hare@xxxxxxxx> --- 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 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
