From: Joonsoo Kim <[email protected]> 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 <[email protected]> Acked-by: Michal Hocko <[email protected]> Reviewed-by: Vlastimil Babka <[email protected]> Signed-off-by: Joonsoo Kim <[email protected]> --- 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
