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

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
...@@ -3764,6 +3764,8 @@ static int rbd_init_disk(struct rbd_device *rbd_dev) ...@@ -3764,6 +3764,8 @@ static int rbd_init_disk(struct rbd_device *rbd_dev)
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
q->limits.discard_granularity = segment_size; q->limits.discard_granularity = segment_size;
q->limits.discard_alignment = 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); blk_queue_merge_bvec(q, rbd_merge_bvec);
disk->queue = q; disk->queue = q;
......
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