linux-kernel - Re: Tmem [PATCH 4/5] (Take 3): Add mm buildfiles

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Message-ID: <4B2AD5E7.4030000@goop.org>
Date:	Thu, 17 Dec 2009 17:07:51 -0800
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Dan Magenheimer <dan.magenheimer@...cle.com>
CC:	linux-kernel@...r.kernel.org, npiggin@...e.de, akpm@...l.org,
	xen-devel@...ts.xensource.com, tmem-devel@....oracle.com,
	kurt.hackel@...cle.com, Russell <rusty@...tcorp.com.au>,
	Rik van Riel <riel@...hat.com>, dave.mccracken@...cle.com,
	linux-mm@...ck.org, Rusty@...inet15.oracle.com,
	sunil.mushran@...cle.com, Avi Kivity <avi@...hat.com>,
	Schwidefsky <schwidefsky@...ibm.com>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Marcelo Tosatti <mtosatti@...hat.com>,
	alan@...rguk.ukuu.org.uk, chris.mason@...cle.com,
	Pavel Machek <pavel@....cz>
Subject: Re: Tmem [PATCH 4/5] (Take 3): Add mm buildfiles

On 12/17/2009 04:38 PM, Dan Magenheimer wrote:
> Tmem [PATCH 4/5] (Take 3): Add mm buildfiles
>
> Add necessary Kconfig and Makefile changes to mm directory
>    

These should be part of their respective tmem-core/frontswap/cleancache 
patches.

     J

> Signed-off-by: Dan Magenheimer<dan.magenheimer@...cle.com>
>
>   Kconfig                                  |   26 +++++++++++++++++++++
>   Makefile                                 |    3 ++
>   2 files changed, 29 insertions(+)
>
> --- linux-2.6.32/mm/Kconfig	2009-12-02 20:51:21.000000000 -0700
> +++ linux-2.6.32-tmem/mm/Kconfig	2009-12-17 13:56:46.000000000 -0700
> @@ -287,3 +287,29 @@ config NOMMU_INITIAL_TRIM_EXCESS
>   	  of 1 says that all excess pages should be trimmed.
>
>   	  See Documentation/nommu-mmap.txt for more information.
> +
> +#
> +# support for transcendent memory
> +#
> +config TMEM
> +	bool "Transcendent memory support"
> +	help
> +	  In a virtualized environment, allows unused and underutilized
> +	  system physical memory to be made accessible through a narrow
> +	  well-defined page-copy-based API.
> +
> +config CLEANCACHE
> +	bool "Cache clean pages in transcendent memory"
> +	depends on TMEM
> +	help
> +	  Allows the transcendent memory pool to be used to store clean
> +	  page-cache pages which, under some circumstances, will greatly
> +	  reduce paging and thus improve performance.
> +
> +config FRONTSWAP
> +	bool "Swap pages to transcendent memory"
> +	depends on TMEM
> +	help
> +	  Allows the transcendent memory pool to be used as a pseudo-swap
> +	  device which, under some circumstances, will greatly reduce
> +	  swapping and thus improve performance.
> --- linux-2.6.32/mm/Makefile	2009-12-02 20:51:21.000000000 -0700
> +++ linux-2.6.32-tmem/mm/Makefile	2009-12-17 14:23:40.000000000 -0700
> @@ -17,6 +17,9 @@ obj-y += init-mm.o
>
>   obj-$(CONFIG_BOUNCE)	+= bounce.o
>   obj-$(CONFIG_SWAP)	+= page_io.o swap_state.o swapfile.o thrash.o
> +obj-$(CONFIG_TMEM)	+= tmem.o
> +obj-$(CONFIG_FRONTSWAP)	+= frontswap.o
> +obj-$(CONFIG_CLEANCACHE) += cleancache.o
>   obj-$(CONFIG_HAS_DMA)	+= dmapool.o
>   obj-$(CONFIG_HUGETLBFS)	+= hugetlb.o
>   obj-$(CONFIG_NUMA) 	+= mempolicy.o
>
>    

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