linux-kernel - [RFC][PATCH 0/5] mm, highmem: kmap

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Message-Id: <20100831192617.441439071@chello.nl>
Date:	Tue, 31 Aug 2010 21:26:17 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Russell King <rmk@....linux.org.uk>,
	David Howells <dhowells@...hat.com>,
	Ralf Baechle <ralf@...ux-mips.org>,
	David Miller <davem@...emloft.net>,
	Chris Metcalf <cmetcalf@...era.com>,
	Paul Mackerras <paulus@...ba.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Hugh Dickins <hughd@...gle.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, linux-arch@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: [RFC][PATCH 0/5] mm, highmem: kmap_atomic rework -v2

Next version of the kmap_atomic rework using Andrew's fancy CPP trickery to
avoid having to convert the whole tree at once.

This is compile tested for i386-allmodconfig, frv, mips-sb1250-swarm,
powerpc-ppc6xx_defconfig, sparc32_defconfig, arm-omap3 (all with
HIGHEM=y).

Boot-tested with: i386-defconfig.

Not tested with:
 - tile, stock toolchain doesn't build tile targets
 - nm10300, the arch doesn't build with highmem to begin with


Is this something we can live with?


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