linux-kernel - Re: [PATCH 3/4] autofs - make mountpoint checks namespace aware

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Message-ID: <87k2e4c541.fsf@x220.int.ebiederm.org>
Date:   Thu, 22 Sep 2016 10:43:26 -0500
From:   ebiederm@...ssion.com (Eric W. Biederman)
To:     Ian Kent <raven@...maw.net>
Cc:     Mateusz Guzik <mguzik@...hat.com>, NeilBrown <neilb@...e.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        autofs mailing list <autofs@...r.kernel.org>,
        Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Al Viro <viro@...IV.linux.org.uk>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Omar Sandoval <osandov@...ndov.com>
Subject: Re: [PATCH 3/4] autofs - make mountpoint checks namespace aware

Ian Kent <raven@...maw.net> writes:

> Eric, Mateusz, I appreciate your spending time on this and particularly pointing
> out my embarrassingly stupid is_local_mountpoint() usage mistake.
>
> Please accept my apology for the inconvenience.
>
> If all goes well (in testing) I'll have follow up patches to correct this fairly
> soon.

Related question.  Do you happen to know how many mounts per mount
namespace tend to be used?  It looks like it is going to be wise to put
a configurable limit on that number.  And I would like the default to be
something high enough most people don't care.  I believe autofs is
likely where people tend to use the most mounts.

Eric