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From: Vivek Goyal <vgoyal@redhat.com>
To: Amir Goldstein <amir73il@gmail.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>,
	Miklos Szeredi <mszeredi@redhat.com>,
	overlayfs <linux-unionfs@vger.kernel.org>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>
Subject: Re: unionmount testsuite with upper virtiofs
Date: Thu, 19 Mar 2020 17:40:44 -0400
Message-ID: <20200319214044.GB83565@redhat.com> (raw)
In-Reply-To: <CAOQ4uxhWLjsxy21MMKUOvMsWmWTWhKP0hwLQoD99xVcWbbmFmA@mail.gmail.com>

On Wed, Mar 18, 2020 at 03:36:44PM +0200, Amir Goldstein wrote:
> > > I also wanted to run either overlay xfstests or unionmount-testsuite. But
> > > none of these seem to give me enough flexibility where I can specify
> > > that overlayfs needs to be mounted on top of virtiofs.
> > >
> > > I feel that atleast for unionmount-testsuite, there should be an
> > > option where we can simply give a target directory and tests run
> > > on that directory and user mounts that directory as needed.
> > >
> >
> > Need to see how patches look.
> > Don't want too much configuration complexity, but I agree that some
> > flexibly is needed.
> > Maybe the provided target directory should be the upper/work basedir?
> >
> 
> Vivek,
> 
> I was going to see what's the best way to add the needed flexibility,
> but then I realized I had already implemented this undocumented
> feature.
> 
> I have been using this to test overlay over XFS as documented here:
> https://github.com/amir73il/overlayfs/wiki/Overlayfs-testing#Setup_overlayfs_mount_over_XFS_with_reflink_support
> 
> That's an example of how to configure a custom /base mount for
> --samefs to be xfs.

Hi Amir,

This seems to work for me. Thanks for the idea.

I put following entries in /etc/fstab.

myfs	/mnt/virtiofs-lower_layer	virtiofs	defaults 0 0
/mnt/virtiofs-lower_layer	/base	none	bind 0 0

After that tests seem to start but soon I hit failures. Now its time
to debug the failures one at a time.

Vivek


      reply index

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-31 11:50 [PATCH 0/4] ovl: allow virtiofs as upper Miklos Szeredi
2020-01-31 11:50 ` [PATCH 1/4] ovl: restructure dentry revalidation Miklos Szeredi
2020-01-31 11:50 ` [PATCH 2/4] ovl: separate detection of remote upper layer from stacked overlay Miklos Szeredi
2020-01-31 11:50 ` [PATCH 3/4] ovl: decide if revalidate needed on a per-dentry bases Miklos Szeredi
2020-01-31 14:53   ` Amir Goldstein
2020-01-31 15:15     ` Miklos Szeredi
2020-01-31 11:50 ` [PATCH 4/4] ovl: alllow remote upper Miklos Szeredi
2020-01-31 15:29   ` Amir Goldstein
2020-01-31 15:38     ` Miklos Szeredi
2020-01-31 15:50       ` Amir Goldstein
2020-01-31 16:05         ` Miklos Szeredi
2020-02-04 14:59   ` Vivek Goyal
2020-02-04 16:16     ` Miklos Szeredi
2020-02-04 17:02       ` Amir Goldstein
2020-02-04 18:42         ` Vivek Goyal
2020-02-04 19:11           ` Amir Goldstein
2020-02-04 19:16             ` Miklos Szeredi
2020-02-20  7:52         ` Amir Goldstein
2020-02-20 20:00           ` Amir Goldstein
2020-03-14 13:16             ` Amir Goldstein
2020-03-16 17:54               ` Vivek Goyal
2020-03-16 19:02                 ` Amir Goldstein
2020-03-16 19:40                   ` Vivek Goyal
2020-03-18 13:36                   ` unionmount testsuite with upper virtiofs Amir Goldstein
2020-03-19 21:40                     ` Vivek Goyal [this message]

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