diff mbox series

mm: mmap: Use helper function allow_write_access() in __remove_shared_vm_struct()

Message ID 20200913092838.27724-1-linmiaohe@huawei.com (mailing list archive)
State New, archived
Headers show
Series mm: mmap: Use helper function allow_write_access() in __remove_shared_vm_struct() | expand

Commit Message

Miaohe Lin Sept. 13, 2020, 9:28 a.m. UTC 
Use helper function allow_write_access() to atomic_inc the i_writecount.

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

Patch

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);