Currently the goal_page in xen-selfballon doesn't consider much about pages used in kernel space. A typical usage is slab pages, without consider slab pages the goal_page result may be too rough and lead extra memory pressure to guest os.
Signed-off-by: Bob Liu <[email protected]> --- drivers/xen/xen-selfballoon.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/xen/xen-selfballoon.c b/drivers/xen/xen-selfballoon.c index 21e18c1..4814759 100644 --- a/drivers/xen/xen-selfballoon.c +++ b/drivers/xen/xen-selfballoon.c @@ -191,6 +191,8 @@ static void selfballoon_process(struct work_struct *work) tgt_pages = cur_pages; /* default is no change */ goal_pages = vm_memory_committed() + totalreserve_pages + + global_page_state(NR_SLAB_RECLAIMABLE) + + global_page_state(NR_SLAB_UNRECLAIMABLE) + MB2PAGES(selfballoon_reserved_mb); #ifdef CONFIG_FRONTSWAP /* allow space for frontswap pages to be repatriated */ -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
