linux-kernel - Re: [RESEND PATCH] Revert "fuse: Apply flags2 only when userspace set the FUSE_INIT

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Message-ID: <10e2fc00466d3e5fc8142139ee979a71872292e6.camel@linaro.org>
Date:   Mon, 04 Sep 2023 15:21:28 +0100
From:   André Draszik <andre.draszik@...aro.org>
To:     Miklos Szeredi <miklos@...redi.hu>
Cc:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Bernd Schubert <bschubert@....com>,
        Miklos Szeredi <mszeredi@...hat.com>, stable@...r.kernel.org
Subject: Re: [RESEND PATCH] Revert "fuse: Apply flags2 only when userspace
 set the FUSE_INIT_EXT"

On Mon, 2023-09-04 at 15:41 +0200, Miklos Szeredi wrote:
> On Mon, 4 Sept 2023 at 15:34, André Draszik <git@...red.net> wrote:
> > 
> > From: André Draszik <andre.draszik@...aro.org>
> > 
> > This reverts commit 3066ff93476c35679cb07a97cce37d9bb07632ff.
> > 
> > This patch breaks all existing userspace by requiring updates as
> > mentioned in the commit message, which is not allowed.
> 
> It might break something, but you need to tell us what that is, please.

In my case, it's Android.

More generally this breaks all user-spaces that haven't been updated. Not
breaking user-space is one of the top rules the kernel has, if not the topmost.


Cheers,
Andre