linux-kernel - Re: missing madvise functionality

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Message-ID: <46128CC2.9090809@redhat.com>
Date:	Tue, 03 Apr 2007 10:20:02 -0700
From:	Ulrich Drepper <drepper@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
CC:	Rik van Riel <riel@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Jakub Jelinek <jakub@...hat.com>
Subject: Re: missing madvise functionality

Andi Kleen wrote:
> Why do you need a lock for that? I don't see any problem with
> two threads doing that in parallel. The kernel would
> serialize it internally and one would fail, but that shouldn't
> be a problem. 

There is no lock at all at userlevel.  I'm talking about locks in the
kernel.

-- 
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖


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