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

[Miaohe Lin]

Use helper function allow_write_access() to atomic_inc the i_writecount.

Signed-off-by: Miaohe Lin <linmia...@huawei.com>
---
 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