[PATCH 4/6] hugetlb_cgroup: remove unneeded return value

[Miaohe Lin <linmiaohe@xxxxxxxxxx>]

The return value of set_hugetlb_cgroup and set_hugetlb_cgroup_rsvd are
always ignored. Remove them to clean up the code.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
 include/linux/hugetlb_cgroup.h | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/include/linux/hugetlb_cgroup.h b/include/linux/hugetlb_cgroup.h
index 379344828e78..630cd255d0cf 100644
--- a/include/linux/hugetlb_cgroup.h
+++ b/include/linux/hugetlb_cgroup.h
@@ -90,32 +90,31 @@ hugetlb_cgroup_from_page_rsvd(struct page *page)
 	return __hugetlb_cgroup_from_page(page, true);
 }
 
-static inline int __set_hugetlb_cgroup(struct page *page,
+static inline void __set_hugetlb_cgroup(struct page *page,
 				       struct hugetlb_cgroup *h_cg, bool rsvd)
 {
 	VM_BUG_ON_PAGE(!PageHuge(page), page);
 
 	if (compound_order(page) < HUGETLB_CGROUP_MIN_ORDER)
-		return -1;
+		return;
 	if (rsvd)
 		set_page_private(page + SUBPAGE_INDEX_CGROUP_RSVD,
 				 (unsigned long)h_cg);
 	else
 		set_page_private(page + SUBPAGE_INDEX_CGROUP,
 				 (unsigned long)h_cg);
-	return 0;
 }
 
-static inline int set_hugetlb_cgroup(struct page *page,
+static inline void set_hugetlb_cgroup(struct page *page,
 				     struct hugetlb_cgroup *h_cg)
 {
-	return __set_hugetlb_cgroup(page, h_cg, false);
+	__set_hugetlb_cgroup(page, h_cg, false);
 }
 
-static inline int set_hugetlb_cgroup_rsvd(struct page *page,
+static inline void set_hugetlb_cgroup_rsvd(struct page *page,
 					  struct hugetlb_cgroup *h_cg)
 {
-	return __set_hugetlb_cgroup(page, h_cg, true);
+	__set_hugetlb_cgroup(page, h_cg, true);
 }
 
 static inline bool hugetlb_cgroup_disabled(void)
@@ -199,16 +198,14 @@ hugetlb_cgroup_from_page_rsvd(struct page *page)
 	return NULL;
 }
 
-static inline int set_hugetlb_cgroup(struct page *page,
+static inline void set_hugetlb_cgroup(struct page *page,
 				     struct hugetlb_cgroup *h_cg)
 {
-	return 0;
 }
 
-static inline int set_hugetlb_cgroup_rsvd(struct page *page,
+static inline void set_hugetlb_cgroup_rsvd(struct page *page,
 					  struct hugetlb_cgroup *h_cg)
 {
-	return 0;
 }
 
 static inline bool hugetlb_cgroup_disabled(void)
-- 
2.23.0