tree ac84685e07eb11ff45891d992103207cc14f261a
parent d2fb4c51c7471a23f0a95526b624c14cec62603d
author Jana Saout <jana@saout.de> 1337078086 +0200
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 1337611973 -0400

xen: Add selfballoning memory reservation tunable.

Currently, the memory target in the Xen selfballooning driver is mainly
driven by the value of "Committed_AS".  However, there are cases in
which it is desirable to assign additional memory to be available for
the kernel, e.g. for local caches (which are not covered by cleancache),
e.g. dcache and inode caches.

This adds an additional tunable in the selfballooning driver (accessible
via sysfs) which allows the user to specify an additional constant
amount of memory to be reserved by the selfballoning driver for the
local domain.

Signed-off-by: Jana Saout <jana@saout.de>
Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>