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-rw-r--r--mm/migrate.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/mm/migrate.c b/mm/migrate.c
index ed97c2c14fa8..410b56bdabed 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -194,7 +194,7 @@ void putback_movable_pages(struct list_head *l)
/*
* Restore a potential migration pte to a working pte entry
*/
-static int remove_migration_pte(struct page *page, struct vm_area_struct *vma,
+static bool remove_migration_pte(struct page *page, struct vm_area_struct *vma,
unsigned long addr, void *old)
{
struct page_vma_mapped_walk pvmw = {
@@ -253,7 +253,7 @@ static int remove_migration_pte(struct page *page, struct vm_area_struct *vma,
update_mmu_cache(vma, pvmw.address, pvmw.pte);
}
- return SWAP_AGAIN;
+ return true;
}
/*
@@ -1722,9 +1722,6 @@ static bool migrate_balanced_pgdat(struct pglist_data *pgdat,
{
int z;
- if (!pgdat_reclaimable(pgdat))
- return false;
-
for (z = pgdat->nr_zones - 1; z >= 0; z--) {
struct zone *zone = pgdat->node_zones + z;
@@ -1947,7 +1944,8 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
/* Prepare a page as a migration target */
__SetPageLocked(new_page);
- __SetPageSwapBacked(new_page);
+ if (PageSwapBacked(page))
+ __SetPageSwapBacked(new_page);
/* anon mapping, we can simply copy page->mapping to the new page: */
new_page->mapping = page->mapping;