linux-kernel - Re: [PATCH 6/8] mm: remove free_area

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Message-ID: <50EDD9A5.8060404@redhat.com>
Date:	Wed, 09 Jan 2013 15:57:09 -0500
From:	Rik van Riel <riel@...hat.com>
To:	Michel Lespinasse <walken@...gle.com>
CC:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	"James E.J. Bottomley" <jejb@...isc-linux.org>,
	Matt Turner <mattst88@...il.com>,
	David Howells <dhowells@...hat.com>,
	Tony Luck <tony.luck@...el.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	linuxppc-dev@...ts.ozlabs.org, linux-parisc@...r.kernel.org,
	linux-alpha@...r.kernel.org, linux-ia64@...r.kernel.org
Subject: Re: [PATCH 6/8] mm: remove free_area_cache use in powerpc architecture

On 01/08/2013 08:28 PM, Michel Lespinasse wrote:
> As all other architectures have been converted to use vm_unmapped_area(),
> we are about to retire the free_area_cache.
>
> This change simply removes the use of that cache in
> slice_get_unmapped_area(), which will most certainly have a
> performance cost. Next one will convert that function to use the
> vm_unmapped_area() infrastructure and regain the performance.
>
> Signed-off-by: Michel Lespinasse <walken@...gle.com>

Acked-by: Rik van Riel <riel@...hat.com>

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