linux-kernel - Re: [Xen-devel] [PATCH] xenbus: Use proc_create_mount

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Date:   Tue, 30 Aug 2016 16:13:23 +0100
From:   David Vrabel <david.vrabel@...rix.com>
To:     Seth Forshee <seth.forshee@...onical.com>
CC:     "Eric W. Biederman" <ebiederm@...ssion.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>,
        <linux-kernel@...r.kernel.org>, <xen-devel@...ts.xenproject.org>
Subject: Re: [Xen-devel] [PATCH] xenbus: Use proc_create_mount_point() to
 create /proc/xen

On 30/08/16 16:10, Seth Forshee wrote:
> On Tue, Aug 30, 2016 at 04:00:03PM +0100, David Vrabel wrote:
>> On 29/08/16 16:03, Seth Forshee wrote:
>>> Mounting proc in user namespace containers fails if the xenbus
>>> filesystem is mounted on /proc/xen because this directory fails
>>> the "permanently empty" test. proc_create_mount_point() exists
>>> specifically to create such mountpoints in proc but is currently
>>> proc-internal. Export this interface to modules, then use it in
>>> xenbus when creating /proc/xen.
>>
>> Acked-by: David Vrabel <david.vrabel@...rix.com>
>>
>> This either needs to be acked by the fs maintainer or go via their tree
>> but you don't appear to have Cc'd the relevant people or lists.
> 
> Huh. I use a script which uses get_maintainer.pl to add the relevant
> maintainers and lists, but appaerntly that failed me this time. Even
> running get_maintainer.pl by hand though it doesn't suggest
> linux-fsdevel though, and it seems it should.

I tend not rely on get_maintainer.pl because it isn't very reliable.
>From MAINTAINERS you want:

FILESYSTEMS (VFS and infrastructure)
M:      Alexander Viro <viro@...iv.linux.org.uk>
L:      linux-fsdevel@...r.kernel.org
S:      Maintained
F:      fs/*

David