linux-ext4 - Re: [PATCH 1/2] uapi: fix statx attribute value overlap for DAX & MOUNT

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Message-ID: <CAHk-=whWC==8VNeVG=_DwT+RT9x1uiseUDH0X9sYKMetrh6c3w@mail.gmail.com>
Date:   Thu, 3 Dec 2020 10:04:26 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Ira Weiny <ira.weiny@...el.com>
Cc:     Eric Sandeen <sandeen@...hat.com>,
        Miklos Szeredi <mszeredi@...hat.com>,
        David Howells <dhowells@...hat.com>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        linux-man <linux-man@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        xfs <linux-xfs@...r.kernel.org>,
        Ext4 Developers List <linux-ext4@...r.kernel.org>,
        Xiaoli Feng <xifeng@...hat.com>
Subject: Re: [PATCH 1/2] uapi: fix statx attribute value overlap for DAX & MOUNT_ROOT

On Wed, Dec 2, 2020 at 6:45 PM Ira Weiny <ira.weiny@...el.com> wrote:
> >
> > What would the typical failure cases be in practice?
>
> The failure will be a user not seeing their file operating in DAX mode when
> they expect it to.
>
> I discussed this with Dan Williams today.  He and I agreed the flag is new
> enough that we don't think users have any released code to the API just yet.
> So I think we will be ok.

Ok, thanks for verification. I've applied it locally in my tree, it
will be pushed out later today with other work..

           Linus