x86/smpboot: Init apic mapping before usage

[cascardo/linux.git] / mm / migrate.c

diff --git a/mm/migrate.c b/mm/migrate.c
index f7ee04a..99250ae 100644 (file)
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -234,7 +234,7 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma,
                goto unlock;
 
        get_page(new);
-       pte = pte_mkold(mk_pte(new, vma->vm_page_prot));
+       pte = pte_mkold(mk_pte(new, READ_ONCE(vma->vm_page_prot)));
        if (pte_swp_soft_dirty(*ptep))
                pte = pte_mksoft_dirty(pte);