[PATCH] mm: mmap: Use helper function allow_write_access() in __remove_shared_vm_struct()

[Miaohe Lin <linmiaohe@xxxxxxxxxx>]

Use helper function allow_write_access() to atomic_inc the i_writecount.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
 mm/mmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index 80ea11bf12fa..a22f1a2fc82e 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -143,7 +143,7 @@ static void __remove_shared_vm_struct(struct vm_area_struct *vma,
 		struct file *file, struct address_space *mapping)
 {
 	if (vma->vm_flags & VM_DENYWRITE)
-		atomic_inc(&file_inode(file)->i_writecount);
+		allow_write_access(file);
 	if (vma->vm_flags & VM_SHARED)
 		mapping_unmap_writable(mapping);
 
-- 
2.19.1