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| author | Josh Durgin <josh.durgin@inktank.com> | 2014-04-08 01:52:03 +0200 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@redhat.com> | 2014-10-14 19:03:37 +0200 |
| commit | b76f82398c1017e303d87760e22125714010207f (patch) | |
| tree | 9b607589ee16f3f9da01849a75733717c818b2c9 /drivers/block/rbd.c | |
| parent | rbd: use helpers to handle discard for layered images correctly (diff) | |
| download | linux-b76f82398c1017e303d87760e22125714010207f.tar.xz linux-b76f82398c1017e303d87760e22125714010207f.zip | |
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: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'drivers/block/rbd.c')
| -rw-r--r-- | drivers/block/rbd.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index e1dcd36ae072..7712ae65753c 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; |