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Groups > linux.kernel > #1609747
| From | Paolo Bonzini <pbonzini@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [virtio-dev] [PATCH] virtio-blk: add DISCARD support to virtio-blk driver |
| Date | 2017-03-27 13:40 +0200 |
| Message-ID | <tpBaa-7no-11@gated-at.bofh.it> (permalink) |
| References | <tpych-55m-11@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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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[PATCH] virtio-blk: add DISCARD support to virtio-blk driver Changpeng Liu <changpeng.liu@intel.com> - 2017-03-27 10:30 +0200
Re: [virtio-dev] [PATCH] virtio-blk: add DISCARD support to virtio-blk driver Paolo Bonzini <pbonzini@redhat.com> - 2017-03-27 13:40 +0200
RE: [virtio-dev] [PATCH] virtio-blk: add DISCARD support to virtio-blk driver "Liu, Changpeng" <changpeng.liu@intel.com> - 2017-03-28 04:00 +0200
Re: [PATCH] virtio-blk: add DISCARD support to virtio-blk driver Christoph Hellwig <hch@lst.de> - 2017-03-27 17:00 +0200
RE: [PATCH] virtio-blk: add DISCARD support to virtio-blk driver "Liu, Changpeng" <changpeng.liu@intel.com> - 2017-03-28 03:50 +0200
Re: [PATCH] virtio-blk: add DISCARD support to virtio-blk driver Stefan Hajnoczi <stefanha@gmail.com> - 2017-03-27 22:30 +0200
RE: [PATCH] virtio-blk: add DISCARD support to virtio-blk driver "Liu, Changpeng" <changpeng.liu@intel.com> - 2017-03-28 04:20 +0200
Re: [PATCH] virtio-blk: add DISCARD support to virtio-blk driver Stefan Hajnoczi <stefanha@gmail.com> - 2017-03-28 10:40 +0200
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