From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Christoph Hellwig <hch@infradead.org>,
Dave Chinner <david@fromorbit.com>
Cc: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
"Eric W. Biederman" <ebiederm@xmission.com>,
Seth Forshee <seth.forshee@canonical.com>
Subject: Re: xfs: fix inode uid/gid initialization
Date: Mon, 13 Feb 2017 22:27:31 -0800 [thread overview]
Message-ID: <1487053651.3125.72.camel@HansenPartnership.com> (raw)
In-Reply-To: <20170214060809.GA21114@infradead.org>
On Mon, 2017-02-13 at 22:08 -0800, Christoph Hellwig wrote:
> On Tue, Feb 14, 2017 at 08:34:16AM +1100, Dave Chinner wrote:
> > >
> > > - if (pip && XFS_INHERIT_GID(pip)) {
> > > - ip->i_d.di_gid = pip->i_d.di_gid;
> > > - if ((VFS_I(pip)->i_mode & S_ISGID) &&
> > > S_ISDIR(mode))
> > > - inode->i_mode |= S_ISGID;
> > > - }
> > > -
> >
> > Doesn't this hunk break the "nogrpid" mount option?
>
> It does.
OK, so I'll fix up the s_user_mount problems and I'll let you sort out
the internals of removing the di_uid/gid if you wish to. I checked the
quota code and I think there are only a couple of places you're using
the kernel view of the ids where you should be using the filesystem
view. They're all identified by current_fsuid/fsgid(), so I think
(with the helper in patch 1) that this is the fix.
James
next prev parent reply other threads:[~2017-02-14 6:27 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-13 17:46 xfs: fix inode uid/gid initialization James Bottomley
2017-02-13 19:43 ` Christoph Hellwig
2017-02-13 20:33 ` James Bottomley
2017-02-13 21:34 ` Dave Chinner
2017-02-14 6:08 ` Christoph Hellwig
2017-02-14 6:27 ` James Bottomley [this message]
2017-02-14 6:28 ` [PATCH 1/2] fs: add inode helpers for fsuid and fsgid James Bottomley
2017-02-14 7:46 ` Eric W. Biederman
2017-02-14 8:00 ` Christoph Hellwig
2017-02-14 16:09 ` James Bottomley
2017-02-15 2:29 ` Eric W. Biederman
2017-02-16 15:43 ` James Bottomley
2017-02-17 1:15 ` Eric W. Biederman
2017-02-17 17:12 ` James Bottomley
2017-02-20 4:56 ` Eric W. Biederman
2017-02-14 6:29 ` [PATCH 2/2] xfs: fix inode uid/gid initialization James Bottomley
2017-02-14 7:58 ` Christoph Hellwig
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