linux-kernel - Re: [PATCH 2/8] mm: alloc_contig_freed

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Message-Id: <201107051330.07443.arnd@arndb.de>
Date:	Tue, 5 Jul 2011 13:30:07 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Marek Szyprowski <m.szyprowski@...sung.com>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-media@...r.kernel.org, linux-mm@...ck.org,
	linaro-mm-sig@...ts.linaro.org,
	Michal Nazarewicz <mina86@...a86.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Ankita Garg <ankita@...ibm.com>,
	Daniel Walker <dwalker@...eaurora.org>,
	Mel Gorman <mel@....ul.ie>,
	Jesse Barker <jesse.barker@...aro.org>,
	Jonathan Corbet <corbet@....net>,
	Chunsang Jeong <chunsang.jeong@...aro.org>
Subject: Re: [PATCH 2/8] mm: alloc_contig_freed_pages() added

On Tuesday 05 July 2011, Marek Szyprowski wrote:
> From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> 
> This commit introduces alloc_contig_freed_pages() function
> which allocates (ie. removes from buddy system) free pages
> in range.  Caller has to guarantee that all pages in range
> are in buddy system.
> 
> Along with this function, a free_contig_pages() function is
> provided which frees all (or a subset of) pages allocated
> with alloc_contig_free_pages().
> 
> Michal Nazarewicz has modified the function to make it easier
> to allocate not MAX_ORDER_NR_PAGES aligned pages by making it
> return pfn of one-past-the-last allocated page.
> 
> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> Signed-off-by: Michal Nazarewicz <m.nazarewicz@...sung.com>
> Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com>
> Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
> CC: Michal Nazarewicz <mina86@...a86.com>

Acked-by: Arnd Bergmann <arnd@...db.de>
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