vfs: move the rest of int fields to struct mount

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

include/linux/mount.h

@@ -58,9 +58,6 @@ struct vfsmount {
 #endif
 	const char *mnt_devname;	/* Name of device e.g. /dev/dsk/hda1 */
 	struct list_head mnt_list;
-	int mnt_expiry_mark;		/* true if marked for expiry */
-	int mnt_pinned;
-	int mnt_ghosts;
 };
 
 struct file; /* forward dec */