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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2011-07-08 15:07:30 -0400
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2011-07-08 15:07:30 -0400
commit136d9ebff300044865693a57d68fe5905635992a (patch)
tree1a336de0e43c499c8b51475cca3afb52b8d1499d /drivers/xen/Kconfig
parent149bb2fab547253e6359e76f1b86b95247110e68 (diff)
parenta50777c791031d7345ce95785ea6220f67339d90 (diff)
Merge branch 'xen-tmem-selfballoon-v8' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem into stable/drivers
* 'xen-tmem-selfballoon-v8' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem: xen: tmem: self-ballooning and frontswap-selfshrinking
Diffstat (limited to 'drivers/xen/Kconfig')
-rw-r--r--drivers/xen/Kconfig17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index be8732c3218..5014c6dcbdf 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -9,6 +9,23 @@ config XEN_BALLOON
the system to expand the domain's memory allocation, or alternatively
return unneeded memory to the system.
+config XEN_SELFBALLOONING
+ bool "Dynamically self-balloon kernel memory to target"
+ depends on XEN && XEN_BALLOON && CLEANCACHE && SWAP
+ default n
+ help
+ Self-ballooning dynamically balloons available kernel memory driven
+ by the current usage of anonymous memory ("committed AS") and
+ controlled by various sysfs-settable parameters. Configuring
+ FRONTSWAP is highly recommended; if it is not configured, self-
+ ballooning is disabled by default but can be enabled with the
+ 'selfballooning' kernel boot parameter. If FRONTSWAP is configured,
+ frontswap-selfshrinking is enabled by default but can be disabled
+ with the 'noselfshrink' kernel boot parameter; and self-ballooning
+ is enabled by default but can be disabled with the 'noselfballooning'
+ kernel boot parameter. Note that systems without a sufficiently
+ large swap device should not enable self-ballooning.
+
config XEN_SCRUB_PAGES
bool "Scrub pages before returning them to system"
depends on XEN_BALLOON