unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE

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

fs/notify/fanotify/fanotify_user.c

@@ -13,6 +13,7 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/uaccess.h>
+#include <linux/compat.h>
 
 #include <asm/ioctls.h>
 
@@ -857,6 +858,22 @@ fput_and_out:
 	return ret;
 }
 
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE6(fanotify_mark,
+				int, fanotify_fd, unsigned int, flags,
+				__u32, mask0, __u32, mask1, int, dfd,
+				const char  __user *, pathname)
+{
+	return sys_fanotify_mark(fanotify_fd, flags,
+#ifdef __BIG_ENDIAN
+				((__u64)mask1 << 32) | mask0,
+#else
+				((__u64)mask0 << 32) | mask1,
+#endif
+				 dfd, pathname);
+}
+#endif
+
 /*
  * fanotify_user_setup - Our initialization function.  Note that we cannot return
  * error because we have compiled-in VFS hooks.  So an (unlikely) failure here