Re: [PATCH v9 0/3] [PATCH v9 0/3] Introduce provisioning primitives

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On Mon, Nov 20, 2023 at 12:33 PM Dave Chinner <david@xxxxxxxxxxxxx> wrote:
>
> On Mon, Nov 13, 2023 at 01:26:51PM -0800, Sarthak Kukreti wrote:
> > On Fri, Nov 10, 2023 at 4:56 PM Dave Chinner <david@xxxxxxxxxxxxx> wrote:
> > >
> > > On Thu, Nov 09, 2023 at 05:01:35PM -0800, Sarthak Kukreti wrote:
> > > > Hi,
> > > >
> > > > This patch series is version 9 of the patch series to introduce
> > > > block-level provisioning mechanism (original [1]), which is useful for
> > > > provisioning space across thinly provisioned storage architectures (loop
> > > > devices backed by sparse files, dm-thin devices, virtio-blk). This
> > > > series has minimal changes over v8[2], with a couple of patches dropped
> > > > (suggested by Dave).
> > > >
> > > > This patch series is rebased from the linux-dm/dm-6.5-provision-support
> > > > [3] on to (a12deb44f973 Merge tag 'input-for-v6.7-rc0' ...). The final
> > > > patch in the series is a blktest (suggested by Dave in 4) which was used
> > > > to test out the provisioning flow for loop devices on sparse files on an
> > > > ext4 filesystem.
> > >
> > > What happened to the XFS patch I sent to support provisioning for
> > > fallocate() operations through XFS?
> > >
> > Apologies, I missed out on mentioning that the XFS patches work well
> > with loop devices.
> >
> > I might have misunderstood: were those patches only for sanity testing
> > or would you prefer that I send those out as a part of this series? I
> > can whip up a quick v10 if so!
>
> I was implying that if you are going to be adding support to random
> block devices for people to actually test out, then you should be
> adding support to filesystems and writing new -fstests- to ensure
> that loop devices are actually provisioning blocks at exactly the
> locations that correspond to the physical file extents the
> filesystem provisioned, too.
>

Fair enough, let me work on an additional fstests patch to validate that.

Best
Sarthak

> -Dave.
> --
> Dave Chinner
> david@xxxxxxxxxxxxx





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