We no longer use MIGRATE_ISOLATE to prevent reuse of hwpoison hugepages as we did before. So current dequeue_huge_page_node() doesn't work as intended because it still uses is_migrate_isolate_page() for this check. This patch fixes it with PageHWPoison flag.
Signed-off-by: Naoya Horiguchi <[email protected]> --- mm/hugetlb.c | 3 +-- mm/memory-failure.c | 1 - 2 files changed, 1 insertion(+), 3 deletions(-) diff --git v4.12-rc3/mm/hugetlb.c v4.12-rc3_patched/mm/hugetlb.c index e582887..6d6c659 100644 --- v4.12-rc3/mm/hugetlb.c +++ v4.12-rc3_patched/mm/hugetlb.c @@ -22,7 +22,6 @@ #include <linux/rmap.h> #include <linux/swap.h> #include <linux/swapops.h> -#include <linux/page-isolation.h> #include <linux/jhash.h> #include <asm/page.h> @@ -872,7 +871,7 @@ static struct page *dequeue_huge_page_node(struct hstate *h, int nid) struct page *page; list_for_each_entry(page, &h->hugepage_freelists[nid], lru) - if (!is_migrate_isolate_page(page)) + if (!PageHWPoison(page)) break; /* * if 'non-isolated free hugepage' not found on the list, diff --git v4.12-rc3/mm/memory-failure.c v4.12-rc3_patched/mm/memory-failure.c index 2527dfed..6c1a7c9 100644 --- v4.12-rc3/mm/memory-failure.c +++ v4.12-rc3_patched/mm/memory-failure.c @@ -49,7 +49,6 @@ #include <linux/swap.h> #include <linux/backing-dev.h> #include <linux/migrate.h> -#include <linux/page-isolation.h> #include <linux/suspend.h> #include <linux/slab.h> #include <linux/swapops.h> -- 2.7.0
