sts.linux-
> > foundation.org
> > Cc: stefa...@gmail.com; h...@lst.de; m...@redhat.com
> > Subject: Re: [PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
> >
> >
> >
> > On 05/07/2017 10:44, Changpeng Liu wrote:
> > > Currently
On 05/07/2017 09:57, Liu, Changpeng wrote:
>> Please include a patch for the specification. Since we are at it, I
> Thanks Paolo, do you mean include a text file which describe the changes for
> the specification?
The specification is hosted in an svn (Subversion) repository at
> Subject: Re: [PATCH v2] virtio-blk: add DISCARD support to virtio-blk driver
>
>
>
> On 05/07/2017 10:44, Changpeng Liu wrote:
> > Currently virtio-blk driver does not provide discard feature flag, so the
> > filesystems which built on top of the block device will not sen
On Tue, Jul 04, 2017 at 11:24:01AM +0200, Paolo Bonzini wrote:
>
>
> On 05/07/2017 10:44, Changpeng Liu wrote:
> > Currently virtio-blk driver does not provide discard feature flag, so the
> > filesystems which built on top of the block device will not send discard
> > command. This is okay for
On 05/07/2017 10:44, Changpeng Liu wrote:
> Currently virtio-blk driver does not provide discard feature flag, so the
> filesystems which built on top of the block device will not send discard
> command. This is okay for HDD backend, but it will impact the performance
> for SSD backend.
>
> Add
Currently virtio-blk driver does not provide discard feature flag, so the
filesystems which built on top of the block device will not send discard
command. This is okay for HDD backend, but it will impact the performance
for SSD backend.
Add a feature flag VIRTIO_BLK_F_DISCARD and command
