linux-kernel - Re: [PATCH] stub MADV

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Message-Id: <20070508160547.e1576146.akpm@linux-foundation.org>
Date:	Tue, 8 May 2007 16:05:47 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Rik van Riel <riel@...hat.com>
Cc:	Nick Piggin <nickpiggin@...oo.com.au>,
	Ulrich Drepper <drepper@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>, Jakub Jelinek <jakub@...hat.com>,
	Dave Jones <davej@...hat.com>
Subject: Re: [PATCH] stub MADV_FREE implementation

On Mon, 07 May 2007 23:51:47 -0400
Rik van Riel <riel@...hat.com> wrote:

> Until we have better performance numbers on the lazy reclaim path,
> we can just alias MADV_FREE to MADV_DONTNEED with this trivial
> patch.
> 
> This way glibc can go ahead with the optimization on their side
> and we can figure out the kernel side later.
> 
> Signed-off-by: Rik van Riel <riel@...hat.com>

Could someone please explain what is going on here?

And has Ulrich indicated that glibc would indeed go out ahead of
the kernel in this fashion?
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