tree 35d88237f7ab55df1bf394d5c214185c2be03bd0
parent 7f427d3a6029331304f91ef4d7cf646f054216d2
author Goldwyn Rodrigues <rgoldwyn@suse.com> 1460979712 -0500
committer Steve French <smfrench@gmail.com> 1463512173 -0500

cifs: Use file_dentry()

CIFS may be used as lower layer of overlayfs and accessing f_path.dentry can
lead to a crash.

Fix by replacing direct access of file->f_path.dentry with the
file_dentry() accessor, which will always return a native object.

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <smfrench@gmail.com>