From: Joonsoo Kim <iamjoonsoo....@lge.com>
For locality, it's better to migrate the page to the same node rather than
the node of the current caller's cpu.
Acked-by: Roman Gushchin <g...@fb.com>
Acked-by: Michal Hocko <mho...@suse.com>
Reviewed-by: Vlastimil Babka <vba...@suse.cz>
Signed-off-by: Joonsoo Kim <iamjoonsoo....@lge.com>
---
mm/page_isolation.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index f6d07c5..aec26d9 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -309,5 +309,7 @@ int test_pages_isolated(unsigned long start_pfn, unsigned
long end_pfn,
struct page *alloc_migrate_target(struct page *page, unsigned long private)
{
- return new_page_nodemask(page, numa_node_id(), &node_states[N_MEMORY]);
+ int nid = page_to_nid(page);
+
+ return new_page_nodemask(page, nid, &node_states[N_MEMORY]);
}
--
2.7.4
