[116/155] mm/page_alloc.c: use free_area_empty() instead of open-coding

Commit Message

Andrew Morton April 2, 2020, 4:09 a.m. UTC

From: chenqiwu <[e-mail]>
Subject: mm/page_alloc.c: use free_area_empty() instead of open-coding

Use free_area_empty() API to replace list_empty() for better code
readability.

Link: http://lkml.kernel.org/r/[e-mail]
Signed-off-by: chenqiwu <[e-mail]>
Reviewed-by: Matthew Wilcox (Oracle) <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 mm/page_alloc.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Patch

--- a/mm/page_alloc.c~mm-page_alloc-use-free_area_empty-instead-of-open-coding
+++ a/mm/page_alloc.c
@@ -3460,8 +3460,7 @@  bool __zone_watermark_ok(struct zone *z,
 			return true;
 		}
 #endif
-		if (alloc_harder &&
-			!list_empty(&area->free_list[MIGRATE_HIGHATOMIC]))
+		if (alloc_harder && !free_area_empty(area, MIGRATE_HIGHATOMIC))
 			return true;
 	}
 	return false;