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Subject[PATCH v2 3/5] hugetlb_cgroup: remove unneeded return value
Date
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@huawei.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
---
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
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