[PATCH v2 6/7] mm/khugepaged: remove unneeded return value of khugepaged_add_pte_mapped_thp()

[Miaohe Lin <linmiaohe@huawei.com>]

The return value of khugepaged_add_pte_mapped_thp() is always 0 and also
ignored. Remove it to clean up the code.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Zach O'Keefe <zokeefe@google.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
---
 mm/khugepaged.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index aecd33ab2bbe..6cb82a299eb2 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -1339,8 +1339,8 @@ static void collect_mm_slot(struct mm_slot *mm_slot)
  * Notify khugepaged that given addr of the mm is pte-mapped THP. Then
  * khugepaged should try to collapse the page table.
  */
-static int khugepaged_add_pte_mapped_thp(struct mm_struct *mm,
-					 unsigned long addr)
+static void khugepaged_add_pte_mapped_thp(struct mm_struct *mm,
+					  unsigned long addr)
 {
 	struct mm_slot *mm_slot;
 
@@ -1351,7 +1351,6 @@ static int khugepaged_add_pte_mapped_thp(struct mm_struct *mm,
 	if (likely(mm_slot && mm_slot->nr_pte_mapped_thp < MAX_PTE_MAPPED_THP))
 		mm_slot->pte_mapped_thp[mm_slot->nr_pte_mapped_thp++] = addr;
 	spin_unlock(&khugepaged_mm_lock);
-	return 0;
 }
 
 static void collapse_and_free_pmd(struct mm_struct *mm, struct vm_area_struct *vma,
-- 
2.23.0