[PATCH -next] mm/ksm: change break_ksm_pmd|pud_entry() to static

[Yang Yingliang <yangyingliang@huawei.com>]

break_ksm_pmd|pud_entry() is only used in ksm.c now, change them
to static.

Fixes: 16ee05ec4698 ("mm/ksm: convert break_ksm() to use walk_page_range_vma()")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
 mm/ksm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/ksm.c b/mm/ksm.c
index 570a23a0e5d9..c35054311e18 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -420,7 +420,7 @@ static inline bool ksm_test_exit(struct mm_struct *mm)
 	return atomic_read(&mm->mm_users) == 0;
 }
 
-int break_ksm_pud_entry(pud_t *pud, unsigned long addr, unsigned long next,
+static int break_ksm_pud_entry(pud_t *pud, unsigned long addr, unsigned long next,
 			struct mm_walk *walk)
 {
 	/* We only care about page tables to walk to a single base page. */
@@ -429,7 +429,7 @@ int break_ksm_pud_entry(pud_t *pud, unsigned long addr, unsigned long next,
 	return 0;
 }
 
-int break_ksm_pmd_entry(pmd_t *pmd, unsigned long addr, unsigned long next,
+static int break_ksm_pmd_entry(pmd_t *pmd, unsigned long addr, unsigned long next,
 			struct mm_walk *walk)
 {
 	bool *ksm_page = walk->private;
-- 
2.25.1