linux-ext4 - Re: [xfstests PATCH] generic: add test of file mode when setfacl fails

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Date:   Thu, 13 Jul 2017 04:55:07 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Ernesto A. Fernández 
        <ernesto.mnd.fernandez@...il.com>
Cc:     Christoph Hellwig <hch@...radead.org>, Jan Kara <jack@...e.com>,
        Theodore Ts'o <tytso@....edu>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Dave Kleikamp <shaggy@...nel.org>, linux-ext4@...r.kernel.org,
        jfs-discussion@...ts.sourceforge.net,
        reiserfs-devel@...r.kernel.org, fstests@...r.kernel.org
Subject: Re: [xfstests PATCH] generic: add test of file mode when setfacl
 fails

On Thu, Jul 13, 2017 at 06:40:04AM -0300, Ernesto A. Fernández wrote:
> Check that the group permission bits of a file are not altered when setfacl
> fails. At the time of this patch the test fails for at least ext2, ext4 and
> jfs. It is not run against reiserfs, since xfstests claims that "attrs are
> not supported by this filesystem type".

That's odd, as common/config explicitly turns on user xattrs:

        reiserfs)
                # acls & xattrs aren't turned on by default on reiserfs
                export MOUNT_OPTIONS="-o acl,user_xattr $REISERFS_MOUNT_OPTIONS"


> 
> The failure to set acls is induced by filling the device, so to save time
> this should probably be run with a small TEST_DEV.

If you run it on the scratch fs instead of the test fs you can use
_scratch_mkfs_sized to hand craft a small fs, which would be nice
to get a decent runtime.