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 <bob....@oracle.com>
---
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
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