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

[Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>]

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@xxxxxxxxxx>

 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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