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

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Message-ID: <457D27A2.2050309@tls.msk.ru>
Date:	Mon, 11 Dec 2006 12:40:50 +0300
From:	Michael Tokarev <mjt@....msk.ru>
To:	Al Viro <viro@....linux.org.uk>
CC:	Chuck Ebbert <76306.1226@...puserve.com>,
	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

Al Viro wrote:
> 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.
[]
> 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.

See for example http://marc.theaimsgroup.com/?t=116510390600001&r=1&w=2

Thanks.

/mjt
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