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authorDan Magenheimer <dan.magenheimer@oracle.com>2011-05-26 10:02:21 -0600
committerDan Magenheimer <dan.magenheimer@oracle.com>2011-05-26 10:02:21 -0600
commit5bc20fc59706214d9591c11e1938a629d3538c12 (patch)
treeebfb66428ce888560dd982d3ca313f039a53ae40 /drivers/xen/Makefile
parent1cfd8bd0f97ae3ad314151cd0fd70454d7b39699 (diff)
downloadlinux-5bc20fc59706214d9591c11e1938a629d3538c12.tar.bz2
xen: cleancache shim to Xen Transcendent Memory
This patch provides a shim between the kernel-internal cleancache API (see Documentation/mm/cleancache.txt) and the Xen Transcendent Memory ABI (see http://oss.oracle.com/projects/tmem). Xen tmem provides "hypervisor RAM" as an ephemeral page-oriented pseudo-RAM store for cleancache pages, shared cleancache pages, and frontswap pages. Tmem provides enterprise-quality concurrency, full save/restore and live migration support, compression and deduplication. A presentation showing up to 8% faster performance and up to 52% reduction in sectors read on a kernel compile workload, despite aggressive in-kernel page reclamation ("self-ballooning") can be found at: http://oss.oracle.com/projects/tmem/dist/documentation/presentations/TranscendentMemoryXenSummit2010.pdf Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Reviewed-by: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Rik Van Riel <riel@redhat.com> Cc: Jan Beulich <JBeulich@novell.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Andreas Dilger <adilger@sun.com> Cc: Ted Ts'o <tytso@mit.edu> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <joel.becker@oracle.com> Cc: Nitin Gupta <ngupta@vflare.org>
Diffstat (limited to 'drivers/xen/Makefile')
-rw-r--r--drivers/xen/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index f420f1ff7f13..7aa6804173ab 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -1,5 +1,6 @@
obj-y += grant-table.o features.o events.o manage.o balloon.o
obj-y += xenbus/
+obj-y += tmem.o
nostackp := $(call cc-option, -fno-stack-protector)
CFLAGS_features.o := $(nostackp)