linux-kernel - Re: [PATCH v6 4/5] fuse: Ensure posix acls are translated outside of init_user

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Date:   Mon, 26 Feb 2018 08:47:21 +0100
From:   Miklos Szeredi <mszeredi@...hat.com>
To:     "Eric W. Biederman" <ebiederm@...ssion.com>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Linux Containers <containers@...ts.linux-foundation.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Alban Crequy <alban@...volk.io>,
        Seth Forshee <seth.forshee@...onical.com>,
        Sargun Dhillon <sargun@...gun.me>,
        Dongsu Park <dongsu@...volk.io>,
        "Serge E. Hallyn" <serge@...lyn.com>
Subject: Re: [PATCH v6 4/5] fuse: Ensure posix acls are translated outside of init_user_ns

On Thu, Feb 22, 2018 at 11:50 PM, Eric W. Biederman
<ebiederm@...ssion.com> wrote:

> So if we could figure out how to use the generic acl support for the old
> brand of fuse filesystems that don't set FUSE_POSIX_ACL it would be much
> easier to support them long term.

Simplest and most robust way seems to be to do everything the same (as
with FUSE_POSIX_ACL) but tell the vfs not to cache the acl.

Thanks,
Miklos