[PATCH v3 20/20] mm/zsmalloc: introduce __zpdesc_set_zsmalloc()

[alexs]

From: Alex Shi (Tencent) <alexs@xxxxxxxxxx>

Add a helper __zpdesc_set_zsmalloc() for __SetPageZsmalloc(), and use
it in callers to make code clear.

Signed-off-by: Alex Shi (Tencent) <alexs@xxxxxxxxxx>
---
 mm/zpdesc.h   | 5 +++++
 mm/zsmalloc.c | 4 ++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/mm/zpdesc.h b/mm/zpdesc.h
index 05def4d45265..06371ce60cd1 100644
--- a/mm/zpdesc.h
+++ b/mm/zpdesc.h
@@ -119,6 +119,11 @@ static inline void __zpdesc_clear_movable(struct zpdesc *zpdesc)
 	__ClearPageMovable(zpdesc_page(zpdesc));
 }
 
+static inline void __zpdesc_set_zsmalloc(struct zpdesc *zpdesc)
+{
+	__SetPageZsmalloc(zpdesc_page(zpdesc));
+}
+
 static inline void __zpdesc_clear_zsmalloc(struct zpdesc *zpdesc)
 {
 	__ClearPageZsmalloc(zpdesc_page(zpdesc));
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index d88602fb0233..7f8e02df4e3e 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1030,7 +1030,7 @@ static struct zspage *alloc_zspage(struct zs_pool *pool,
 			cache_free_zspage(pool, zspage);
 			return NULL;
 		}
-		__SetPageZsmalloc(zpdesc_page(zpdesc));
+		__zpdesc_set_zsmalloc(zpdesc);
 
 		zpdesc_inc_zone_page_state(zpdesc);
 		zpdescs[i] = zpdesc;
@@ -1820,7 +1820,7 @@ static int zs_page_migrate(struct page *newpage, struct page *page,
 	VM_BUG_ON_PAGE(!zpdesc_is_isolated(zpdesc), zpdesc_page(zpdesc));
 
 	/* We're committed, tell the world that this is a Zsmalloc page. */
-	__SetPageZsmalloc(zpdesc_page(newzpdesc));
+	__zpdesc_set_zsmalloc(newzpdesc);
 
 	/* The page is locked, so this pointer must remain valid */
 	zspage = get_zspage(zpdesc);
-- 
2.43.0