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Message-Id: <20190814021755.1977-2-richardw.yang@linux.intel.com>
Date:   Wed, 14 Aug 2019 10:17:54 +0800
From:   Wei Yang <richardw.yang@...ux.intel.com>
To:     akpm@...ux-foundation.org, mgorman@...hsingularity.net,
        vbabka@...e.cz, osalvador@...e.de
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Wei Yang <richardw.yang@...ux.intel.com>
Subject: [PATCH 2/3] mm/mmap.c: __vma_unlink_prev is not necessary now

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@...ux.intel.com>
---
 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

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