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-rw-r--r--mm/rmap.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/mm/rmap.c b/mm/rmap.c
index c8454e06b6c8..78cc46b876e6 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1282,7 +1282,7 @@ int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
}
dec_mm_counter(mm, MM_ANONPAGES);
inc_mm_counter(mm, MM_SWAPENTS);
- } else if (PAGE_MIGRATION) {
+ } else if (IS_ENABLED(CONFIG_MIGRATION)) {
/*
* Store the pfn of the page in a special migration
* pte. do_swap_page() will wait until the migration
@@ -1293,7 +1293,8 @@ int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
}
set_pte_at(mm, address, pte, swp_entry_to_pte(entry));
BUG_ON(pte_file(*pte));
- } else if (PAGE_MIGRATION && (TTU_ACTION(flags) == TTU_MIGRATION)) {
+ } else if (IS_ENABLED(CONFIG_MIGRATION) &&
+ (TTU_ACTION(flags) == TTU_MIGRATION)) {
/* Establish migration entry for a file page */
swp_entry_t entry;
entry = make_migration_entry(page, pte_write(pteval));
@@ -1499,7 +1500,7 @@ static int try_to_unmap_anon(struct page *page, enum ttu_flags flags)
* locking requirements of exec(), migration skips
* temporary VMAs until after exec() completes.
*/
- if (PAGE_MIGRATION && (flags & TTU_MIGRATION) &&
+ if (IS_ENABLED(CONFIG_MIGRATION) && (flags & TTU_MIGRATION) &&
is_vma_temporary_stack(vma))
continue;