linux-kernel - Re: [RFC] vfs: skip extra attributes check on removal for symlinks

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Message-ID: <20180509013944.GE11261@magnolia>
Date:   Tue, 8 May 2018 18:39:44 -0700
From:   "Darrick J. Wong" <darrick.wong@...cle.com>
To:     "Luis R. Rodriguez" <mcgrof@...nel.org>
Cc:     viro@...iv.linux.org.uk, linux-fsdevel@...r.kernel.org,
        linux-api@...r.kernel.org, sandeen@...deen.net,
        dhowells@...hat.com, tytso@....edu, fliu@...e.com, jack@...e.cz,
        jeffm@...e.com, nborisov@...e.com, jake.norris@...e.com,
        mtk.manpages@...il.com, linux-xfs@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC] vfs: skip extra attributes check on removal for symlinks

On Wed, May 09, 2018 at 12:38:55AM +0000, Luis R. Rodriguez wrote:
> On Tue, May 08, 2018 at 05:17:41PM -0700, Darrick J. Wong wrote:
> > On Wed, May 09, 2018 at 12:03:28AM +0000, Luis R. Rodriguez wrote:
> > > Groovy, thanks, let's not forget the xfs_repair respective fix :) let me know
> > > if you have any feedback on that.
> > 
> > TBH I've lost any proposed xfs_repair patches to the mists of time
> > because some patch volcano keeps erupting on the lists. :P
> > 
> > Uh... I think it's fine for xfs_{repair,scrub} to clear the immutable
> > and append flags on any special inodes it finds, particularly since
> > neither flag has any real meaning for block/char/fifo/socket/symlinks
> > anyway.
> 
> Sure, my point during review of that series for xfs_repair in particular
> though was that for symlinks the justification is different (half of the
> commit log in this new patch), as such I'd prefer to deal with them in a
> separate follow up patch.

Ah, found it again finally[1].  ISTR the discussion petered out after
Dave asked if you had a map of inode mode
(file/dir/bdev/cdev/fifo/socket/symlink) to allowable flags.  That would
be a good general way to detect and clear stray flags.

--D

[1] https://marc.info/?l=linux-xfs&m=150948985429374&w=4

>   Luis
> --
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