linux-kernel - RE: [PATCH 01/15] avr32: convert to asm-generic/memory

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Date:	Mon, 28 Sep 2015 18:44:05 +0000
From:	"Luck, Tony" <tony.luck@...el.com>
To:	Christoph Hellwig <hch@...radead.org>,
	"Williams, Dan J" <dan.j.williams@...el.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Linux MM <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-nvdimm <linux-nvdimm@...1.01.org>
Subject: RE: [PATCH 01/15] avr32: convert to asm-generic/memory_model.h

> Seems like we should simply introduce a CONFIG_VMEM_MAP for ia64
> to get this started.  Does my memory trick me or did we used to have
> vmem_map on other architectures as well but managed to get rid of it
> everywhere but on ia64?

I think ia64 hung onto this because of the SGI sn1 platforms. They were
even more discontiguous than even SPARSEMEM_EXTREME could handle

-Tony
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