xen/balloon: Protect against CPU exhaust by event/x process

Protect against CPU exhaust by event/x process during
errors by adding some delays in scheduling next event
and retry count limit.

Signed-off-by: Daniel Kiper <dkiper@net-space.pl>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
1 file changed