linux-kernel - Re: [patch] pipe: Don't oops when pipe filesystem isn't mounted

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Message-ID: <20061211091335.GA4587@ftp.linux.org.uk>
Date:	Mon, 11 Dec 2006 09:13:35 +0000
From:	Al Viro <viro@....linux.org.uk>
To:	Chuck Ebbert <76306.1226@...puserve.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>,
	Linus Torvalds <torvalds@...l.org>
Subject: Re: [patch] pipe: Don't oops when pipe filesystem isn't mounted

On Mon, Dec 11, 2006 at 03:27:37AM -0500, Chuck Ebbert wrote:
> Prevent oops when an app tries to create a pipe while pipefs
> is not mounted.
> 
> Signed-off-by: Chuck Ebbert <76306.1226@...puserve.com>

That makes no sense at all.  pipe_mnt is not created by userland
mount; it's created by init_pipe_fs() and we'd bloody better
have it done before any applications get a chance to run.

Please, explain how the hell did you manage to get a perverted
config where that is not true.  In the meanwhile the patch is
NAKed.
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