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Commit b76f8239 authored by Josh Durgin's avatar Josh Durgin Committed by Ilya Dryomov
Browse files

rbd: set the remaining discard properties to enable support 



max_discard_sectors must be set for the queue to support discard.
Operations implementing discard for rbd zero data, so report that.

Signed-off-by: default avatarJosh Durgin <josh.durgin@inktank.com>
parent d3246fb0

drivers/block/rbd.c

+2 −0
Original line number Diff line number Diff line
@@ -3764,6 +3764,8 @@ static int rbd_init_disk(struct rbd_device *rbd_dev) 
	queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);

	q->limits.discard_granularity = segment_size;

	q->limits.discard_alignment = segment_size;

	q->limits.max_discard_sectors = segment_size / SECTOR_SIZE;

	q->limits.discard_zeroes_data = 1;



	blk_queue_merge_bvec(q, rbd_merge_bvec);

	disk->queue = q;