[PATCH 4/4] mm/page_alloc: remove set_page_private() in prep_compound_tail()

[Zi Yan]

With the subpage->private == 0 check added in a prior commit, any allocated
compound page should not have nonzero subpage->private. Remove the
unnecessary subpage->private initialization code in compound page
preparation.

Signed-off-by: Zi Yan <ziy@xxxxxxxxxx>
---
 mm/internal.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mm/internal.h b/mm/internal.h
index 181e79f1d6a2..c96421ce9350 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -895,7 +895,6 @@ static inline void prep_compound_tail(struct page *tail,
 {
 	tail->mapping = TAIL_MAPPING;
 	set_compound_head(tail, head, order);
-	set_page_private(tail, 0);
 }
 
 static inline void init_compound_tail(struct page *tail,

-- 
2.53.0