[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <CAG9=OMMM3S373Y6UEeXxnOyvMvA9wmAVd4Jrdjt3gzkz9d2yUg@mail.gmail.com>
Date: Tue, 10 Oct 2023 15:42:53 -0700
From: Sarthak Kukreti <sarthakkukreti@...omium.org>
To: Dave Chinner <david@...morbit.com>
Cc: dm-devel@...hat.com, linux-block@...r.kernel.org,
linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-fsdevel@...r.kernel.org, Jens Axboe <axboe@...nel.dk>,
Alasdair Kergon <agk@...hat.com>,
Mike Snitzer <snitzer@...nel.org>,
Christoph Hellwig <hch@...radead.org>,
Brian Foster <bfoster@...hat.com>,
"Theodore Ts'o" <tytso@....edu>,
Andreas Dilger <adilger.kernel@...ger.ca>,
Bart Van Assche <bvanassche@...gle.com>,
"Darrick J. Wong" <djwong@...nel.org>
Subject: Re: [PATCH v8 0/5] Introduce provisioning primitives
On Sun, Oct 8, 2023 at 4:50 PM Dave Chinner <david@...morbit.com> wrote:
>
> On Fri, Oct 06, 2023 at 06:28:12PM -0700, Sarthak Kukreti wrote:
> > Hi,
> >
> > This patch series is version 8 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 v7[2].
> >
> > This patch series is rebased from the linux-dm/dm-6.5-provision-support [1] on to
> > (cac405a3bfa2 Merge tag 'for-6.6-rc3-tag'). In addition, there's an
> > additional patch to allow passing through an unshare intent via REQ_OP_PROVISION
> > (suggested by Darrick in [4]).
>
> The XFS patches I just posted were smoke tested a while back against
> loop devices and then forward ported to this patchset. Good for
> testing that userspace driven file preallocation gets propagated by
> the filesystem down to the backing device correctly and that
> subsequent IO to the file then does the right thing (e.g. fio
> testing using fallocate() to set up the files being written to)....
>
Thanks! I've been testing with a WIP patch for ext4, I'll give your
patches a try. Once we are closer to submitting the filesystem
support, we can formalize the test into an xfstest (sparse file + loop
+ filesystem, fallocate() file, check the size of the underlying
sparse file).
Best
Sarthak
- Sarthak
> -Dave.
> --
> Dave Chinner
> david@...morbit.com
Powered by blists - more mailing lists