[CIFS] Enable mmap on forcedirectio mounts

openoffice and gedit failed with 'direct' options

Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 29f1da7..8c6a036 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -758,7 +758,7 @@
 };
 
 const struct file_operations cifs_file_direct_ops = {
-	/* no mmap, no aio, no readv -
+	/* no aio, no readv -
 	   BB reevaluate whether they can be done with directio, no cache */
 	.read = cifs_user_read,
 	.write = cifs_user_write,
@@ -767,6 +767,7 @@
 	.lock = cifs_lock,
 	.fsync = cifs_fsync,
 	.flush = cifs_flush,
+	.mmap = cifs_file_mmap,
 	.splice_read = generic_file_splice_read,
 #ifdef CONFIG_CIFS_POSIX
 	.unlocked_ioctl  = cifs_ioctl,