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>
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@ -4380,7 +4380,6 @@ static int rbd_init_disk(struct rbd_device *rbd_dev)
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q->limits.discard_granularity = segment_size;
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q->limits.discard_alignment = segment_size;
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blk_queue_max_discard_sectors(q, segment_size / SECTOR_SIZE);
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q->limits.discard_zeroes_data = 1;
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if (!ceph_test_opt(rbd_dev->rbd_client->client, NOCRC))
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q->backing_dev_info->capabilities |= BDI_CAP_STABLE_WRITES;
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