linux-kernel - Re: missing madvise functionality

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Message-ID: <20070403211238.GB26860@lazybastard.org>
Date:	Tue, 3 Apr 2007 23:12:38 +0200
From:	Jörn Engel <joern@...ybastard.org>
To:	Eric Dumazet <dada1@...mosbay.com>
Cc:	Rik van Riel <riel@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ulrich Drepper <drepper@...hat.com>,
	Andi Kleen <andi@...stfloor.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Jakub Jelinek <jakub@...hat.com>, linux-mm@...ck.org,
	Hugh Dickins <hugh@...itas.com>
Subject: Re: missing madvise functionality

On Tue, 3 April 2007 23:10:14 +0200, Eric Dumazet wrote:
> 
> mmap()/brk() must give fresh NULL pages, but maybe madvise(MADV_DONTNEED) 
> can relax this requirement (if the pages were reclaimed, then a page fault 
> could bring a new page with random content)

...provided that it doesn't leak information from the kernel?

Jörn

-- 
All art is but imitation of nature.
-- Lucius Annaeus Seneca
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