linux-kernel - Re: [patch 5/9] unprivileged mounts: allow unprivileged bind mounts

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Message-Id: <1199819710.9834.74.camel@localhost>
Date:	Tue, 08 Jan 2008 11:15:10 -0800
From:	Dave Hansen <haveblue@...ibm.com>
To:	Miklos Szeredi <miklos@...redi.hu>
Cc:	akpm@...ux-foundation.org, hch@...radead.org, serue@...ibm.com,
	viro@....linux.org.uk, ebiederm@...ssion.com, kzak@...hat.com,
	linux-fsdevel@...r.kernel.org, containers@...ts.osdl.org,
	util-linux-ng@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [patch 5/9] unprivileged mounts: allow unprivileged bind mounts

On Tue, 2008-01-08 at 20:08 +0100, Miklos Szeredi wrote:
> 
> The logic behind EPERM, is that this failure is only for unprivileged
> callers.  ENOMEM is too specifically about OOM.  It could be changed
> to ENOSPC, ENFILE, EMFILE, or it could remain EPERM.  What do others
> think? 

Since you're patching mount anyway, maybe you could add a little pointer
for people to go check the sysctl if they get a certain error code back
from here.

-- Dave

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