UBIFS: fix an mmap and fsync race condition

[deliverable/linux.git] / fs / ubifs / file.c

diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 4f34dbae823dc9930077a4599933e14b7e457de9..f7d48a08f44393435e253a706d4d6bbf2d467e15 100644 (file)
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -1525,8 +1525,7 @@ static int ubifs_vm_page_mkwrite(struct vm_area_struct *vma,
        }
 
        wait_for_stable_page(page);
-       unlock_page(page);
-       return 0;
+       return VM_FAULT_LOCKED;
 
 out_unlock:
        unlock_page(page);