From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paul Mackerras <paulus@samba.org>
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Message-ID: <15626.55930.673731.803194@argo.ozlabs.ibm.com>
Date: Sat, 15 Jun 2002 16:11:06 +1000 (EST)
To: Dan Malek <dan@embeddededge.com>
Cc: Tom Rini <trini@kernel.crashing.org>,
	linuxppc-embedded@lists.linuxppc.org,
	David Gibson <david@gibson.dropbear.id.au>
Subject: Re: consistent_free()
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	<20020614153954.GL13541@opus.bloom.county>
	<3D0A1D53.6040205@embeddededge.com>
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Dan Malek writes:

> The newer ARM version only allocates the number of pages necessary to
> cover the request.  The old version, and the one in PowerPC right now,
> would just use __get_free_pages, which was a power-of-two allocator.

Interesting.  Using __get_free_pages guarantees that the pages are
physically contiguous.  Does the new ARM version do something clever
to get physically contiguous pages?  Or do the callers have to do a
scatter/gather type of operation if they are using more than 1 page?

Paul.

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