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authorChristoph Hellwig <hch@lst.de>2017-04-05 20:21:17 +0300
committerJens Axboe <axboe@fb.com>2017-04-08 20:25:38 +0300
commit93c1defedcae701512957c279b850659d1dae78f (patch)
treeaa2908329c3e67a6946a16f74f497198870abc5e /drivers/block/rbd.c
parentf09a06a193d942a12c1a33c153388b3962222006 (diff)
downloadlinux-93c1defedcae701512957c279b850659d1dae78f.tar.xz
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: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block/rbd.c')
-rw-r--r--drivers/block/rbd.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index f24ade333e0c..089ac4179919 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -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;