mm/readahead.c: fix readahead failure for memoryless NUMA nodes and limit readahead...

[platform/adaptation/renesas_rcar/renesas_kernel.git] / mm / migrate.c

diff --git a/mm/migrate.c b/mm/migrate.c
index bed4880..13f47fb 100644 (file)
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -148,8 +148,11 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma,
        pte = pte_mkold(mk_pte(new, vma->vm_page_prot));
        if (pte_swp_soft_dirty(*ptep))
                pte = pte_mksoft_dirty(pte);
+
+       /* Recheck VMA as permissions can change since migration started  */
        if (is_write_migration_entry(entry))
-               pte = pte_mkwrite(pte);
+               pte = maybe_mkwrite(pte, vma);
+
 #ifdef CONFIG_HUGETLB_PAGE
        if (PageHuge(new)) {
                pte = pte_mkhuge(pte);