diff mbox series

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

Message ID 1588130803-20527-9-git-send-email-iamjoonsoo.kim@lge.com (mailing list archive)
State New, archived
Headers show
Series change the implementation of the PageHighMem() | expand

Commit Message

Joonsoo Kim April 29, 2020, 3:26 a.m. UTC 
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>

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@fb.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

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
 }