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

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Date:	Thu, 17 Dec 2009 16:38:28 -0800 (PST)
From:	Dan Magenheimer <dan.magenheimer@...cle.com>
To:	linux-kernel@...r.kernel.org
Cc:	dan.magenheimer@...cle.com, npiggin@...e.de, akpm@...l.org,
	jeremy@...p.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: Tmem [PATCH 4/5] (Take 3): Add mm buildfiles

Tmem [PATCH 4/5] (Take 3): Add mm buildfiles

Add necessary Kconfig and Makefile changes to mm directory

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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