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-rw-r--r--drivers/block/rbd.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index e1dcd36..7712ae6 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -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;
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