linux-kernel - Re: [PATCH 3/3] autofs - fix AT_NO

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Message-ID: <20171127160147.GA27613@qualcomm.com>
Date:   Mon, 27 Nov 2017 16:01:53 +0000
From:   Mike Marion <mmarion@...lcomm.com>
To:     Ian Kent <raven@...maw.net>
CC:     NeilBrown <neilb@...e.com>, Al Viro <viro@...IV.linux.org.uk>,
        "Colin Walters" <walters@...hat.com>,
        Ondrej Holy <oholy@...hat.com>,
        "autofs mailing list" <autofs@...r.kernel.org>,
        Kernel Mailing List <linux-kernel@...r.kernel.org>,
        David Howells <dhowells@...hat.com>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH 3/3] autofs - fix AT_NO_AUTOMOUNT not being honored

On Thu, Nov 23, 2017 at 08:36:49AM +0800, Ian Kent wrote:

> And with the move of userspace to use /proc based mount tables (one
> example being the symlink of /etc/mtab into /proc) even modest sized
> direct mount maps will be a problem with every entry getting mounted.
> 
> Systems will cope with this fine but larger systems not so much.

Yes.. we've run into some big issues due to the change of /etc/mtab from
a file to a symlink to /proc/self/mounts.  Most have been worked around
thus far (mostly due to Suse coming up with patches) but still have a
few annoying ones.

-- 
Mike Marion-Unix SysAdmin/Sr. Staff IT Engineer-http://www.qualcomm.com