This initializes the last_nid data at page freeing time, so when pages are allocated later we can identify the first NUMA hinting page fault happening on them. Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx> --- mm/page_alloc.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index ef69743..e096742 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -619,6 +619,9 @@ static inline int free_pages_check(struct page *page) bad_page(page); return 1; } +#ifdef CONFIG_AUTONUMA + page->autonuma_last_nid = -1; +#endif if (page->flags & PAGE_FLAGS_CHECK_AT_PREP) page->flags &= ~PAGE_FLAGS_CHECK_AT_PREP; return 0; -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>