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Commit 93c1defe authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

rbd: remove the discard_zeroes_data flag 



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

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent f09a06a1

drivers/block/rbd.c

+0 −1
Original line number Diff line number Diff line
@@ -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;