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Merge branch 'xen-tmem-selfballoon-v8' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem into stable/drivers

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* 'xen-tmem-selfballoon-v8' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem:
  xen: tmem: self-ballooning and frontswap-selfshrinking
This commit is contained in:
Konrad Rzeszutek Wilk
2011-07-08 15:07:30 -04:00
parent 149bb2fab5 a50777c791
commit 136d9ebff3
6 changed files with 520 additions and 0 deletions
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drivers/xen/Kconfig
+17
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@@ -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