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Subject[PATCH 6/7] mm/khugepaged: remove unneeded return value of khugepaged_add_pte_mapped_thp()
Date
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>
---
mm/khugepaged.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 142e26e4bdbf..ee0a719c8be9 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -1372,7 +1372,7 @@ 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,
+static void khugepaged_add_pte_mapped_thp(struct mm_struct *mm,
unsigned long addr)
{
struct mm_slot *mm_slot;
@@ -1384,7 +1384,6 @@ 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
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