Messages in this thread | | | Subject | Re: [virtio-dev] [PATCH] virtio-blk: add DISCARD support to virtio-blk driver | From | Paolo Bonzini <> | Date | Mon, 27 Mar 2017 13:34:17 +0200 |
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On 28/03/2017 10:39, Changpeng Liu wrote: > + if (virtio_has_feature(vdev, VIRTIO_BLK_F_DISCARD)) { > + q->limits.discard_zeroes_data = 0;
Maybe you could use another feature bit to populate discard_zeroes_data.
Paolo
> + q->limits.discard_alignment = blk_size; > + q->limits.discard_granularity = blk_size; > + blk_queue_max_discard_sectors(q, UINT_MAX); > + blk_queue_max_discard_segments(q, 1); > + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); > + } > +
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