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From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Russell King <rmk@arm.linux.org.uk>,
	David Howells <dhowells@redhat.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	David Miller <davem@davemloft.net>,
	Paul Mackerras <paulus@samba.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Hugh Dickins <hughd@google.com>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	linux-arch@vger.kernel.org,
	Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: [RFC][PATCH 0/6] mm, highmem: kmap_atomic rework
Date: Thu, 19 Aug 2010 22:13:17 +0200	[thread overview]
Message-ID: <20100819201317.673172547@chello.nl> (raw)


This patch-set reworks the kmap_atomic API to be a stack based, instead of
static slot based. Some might remember this from last year, some not ;-)

The advantage is that you no longer need to worry about KM_foo, the
disadvantage is that kmap_atomic/kunmap_atomic now needs to be strictly
nested (CONFIG_HIGHMEM_DEBUG should complain in case its not) -- and of
course its a big massive patch changing a widely used API.

The patch-set is currently based on tip/master as of today, and compile
tested on: i386-all{mod,yes}config, mips-yosemite_defconfig,
sparc-sparc32_defconfig, powerpc-ppc6xx_defconfig, and some arm config.

(Sorry dhowells, I again couldn't find frv/mn10300 compilers)

Boot tested with i386-defconfig on kvm.

Since its a rather large set, and somewhat tedious to rebase, I wanted to
ask how to go about getting this merged?

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             reply	other threads:[~2010-08-19 20:30 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-19 20:13 Peter Zijlstra [this message]
2010-08-19 20:13 ` [RFC][PATCH 1/6] mm: strictly nested kmap_atomic Peter Zijlstra
2010-08-20 20:50   ` Rik van Riel
2010-08-24  7:09   ` KAMEZAWA Hiroyuki
2010-08-19 20:13 ` [RFC][PATCH 2/6] mm: stack based kmap_atomic Peter Zijlstra
2010-08-20 21:34   ` Rik van Riel
2010-08-24  7:24   ` KAMEZAWA Hiroyuki
2010-08-24  7:35     ` KAMEZAWA Hiroyuki
2010-08-24  8:04       ` Peter Zijlstra
2010-08-19 20:13 ` [RFC][PATCH 3/6] mm, frv: Out-of-line kmap-atomic Peter Zijlstra
2010-08-20 21:48   ` Rik van Riel
2010-08-19 20:13 ` [RFC][PATCH 4/6] mm: Remove all KM_type arguments Peter Zijlstra
2010-08-20 21:44   ` Rik van Riel
2010-08-19 20:13 ` [RFC][PATCH 5/6] mm: Fix up KM_type argument removal fallout Peter Zijlstra
2010-08-20 21:45   ` Rik van Riel
2010-08-19 20:13 ` [RFC][PATCH 6/6] mm: Remove pte_*map_nested() Peter Zijlstra
2010-08-20 21:47   ` Rik van Riel
2010-08-19 21:31 ` [RFC][PATCH 0/6] mm, highmem: kmap_atomic rework Andrew Morton
2010-08-20 14:38   ` Peter Zijlstra

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