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To: "Marek Szyprowski" <m.szyprowski@samsung.com>,
        "Alan Cox" <alan@lxorguk.ukuu.org.uk>
Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-media@vger.kernel.org, linux-mm@kvack.org,
        linaro-mm-sig@lists.linaro.org,
        "'Kyungmin Park'" <kyungmin.park@samsung.com>,
        "'Andrew Morton'" <akpm@linux-foundation.org>,
        "'KAMEZAWA Hiroyuki'" <kamezawa.hiroyu@jp.fujitsu.com>,
        "'Ankita Garg'" <ankita@in.ibm.com>,
        "'Daniel Walker'" <dwalker@codeaurora.org>,
        "'Johan MOSSBERG'" <johan.xx.mossberg@stericsson.com>,
        "'Mel Gorman'" <mel@csn.ul.ie>, "'Arnd Bergmann'" <arnd@arndb.de>,
        "'Jesse Barker'" <jesse.barker@linaro.org>
Subject: Re: [PATCH 02/10] lib: genalloc: Generic allocator improvements
References: <1307699698-29369-1-git-send-email-m.szyprowski@samsung.com>
 <1307699698-29369-3-git-send-email-m.szyprowski@samsung.com>
 <20110610122451.15af86d1@lxorguk.ukuu.org.uk>
 <000c01cc2769$02669b70$0733d250$%szyprowski@samsung.com>
 <20110610135217.701a2fd2@lxorguk.ukuu.org.uk>
Date: Fri, 10 Jun 2011 19:16:45 +0200
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From: "Michal Nazarewicz" <mina86@mina86.com>
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On Fri, 10 Jun 2011 14:52:17 +0200, Alan Cox <alan@lxorguk.ukuu.org.uk>  
wrote:

>> I plan to replace it with lib/bitmap.c bitmap_* based allocator  
>> (similar like
>> it it is used by dma_declare_coherent_memory() and friends in
>> drivers/base/dma-coherent.c). We need something really simple for CMA  
>> area
>> management.
>>
>> IMHO allocate_resource and friends a bit too heavy here, but good to  
>> know
>> that such allocator also exists.
>
> Not sure I'd class allocate_resource as heavyweight but providing it's
> using something that already exists rather than inventing yet another
> allocator.

genalloc is already in the kernel and is used in a few places, so we
either let everyone use it as they see fit or we deprecate the library.
If we don't deprecate it I see no reason why CMA should not use it.

-- 
Best regards,                                         _     _
.o. | Liege of Serenely Enlightened Majesty of      o' \,=./ `o
..o | Computer Science,  Michal "mina86" Nazarewicz    (o o)
ooo +-----<email/xmpp: mnazarewicz@google.com>-----ooO--(_)--Ooo--
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