[PATCH 2/3] mm/mmap.c: __vma_unlink_prev is not necessary now

From: Wei Yang
Date: Tue Aug 13 2019 - 22:18:26 EST


The third parameter of __vma_unlink_common could differentiate these two
types. __vma_unlink_prev is not necessary now.

Signed-off-by: Wei Yang <richardw.yang@xxxxxxxxxxxxxxx>
---
mm/mmap.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index 3d56340fea36..3fde0ec18554 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -693,13 +693,6 @@ static __always_inline void __vma_unlink_common(struct mm_struct *mm,
vmacache_invalidate(mm);
}

-static inline void __vma_unlink_prev(struct mm_struct *mm,
- struct vm_area_struct *vma,
- struct vm_area_struct *prev)
-{
- __vma_unlink_common(mm, vma, vma);
-}
-
/*
* We cannot adjust vm_start, vm_end, vm_pgoff fields of a vma that
* is already present in an i_mmap tree without adjusting the tree.
@@ -874,7 +867,7 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start,
* us to remove next before dropping the locks.
*/
if (remove_next != 3)
- __vma_unlink_prev(mm, next, vma);
+ __vma_unlink_common(mm, next, next);
else
/*
* vma is not before next if they've been
--
2.17.1