[PATCH v2 08/10] mm/page_alloc: correct the use of is_highmem_idx()

[js1304]

From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>

What we'd like to check here is whether page has direct mapping or not.
Use PageHighMem() since it is perfectly matched for this purpose.

Acked-by: Roman Gushchin <guro@xxxxxx>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 7fe5115..da473c7 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1399,7 +1399,7 @@ static void __meminit __init_single_page(struct page *page, unsigned long pfn,
 	INIT_LIST_HEAD(&page->lru);
 #ifdef WANT_PAGE_VIRTUAL
 	/* The shift won't overflow because ZONE_NORMAL is below 4G. */
-	if (!is_highmem_idx(zone))
+	if (!PageHighMem(page))
 		set_page_address(page, __va(pfn << PAGE_SHIFT));
 #endif
 }
-- 
2.7.4