Index: head/sys/compat/linux/linux_file.h
===================================================================
--- head/sys/compat/linux/linux_file.h
+++ head/sys/compat/linux/linux_file.h
@@ -91,6 +91,33 @@
 #define	LINUX_F_SETOWN		8
 #define	LINUX_F_GETOWN		9
 #endif
+#ifndef LINUX_F_SETSIG
+#define	LINUX_F_SETSIG		10
+#define	LINUX_F_GETSIG		11
+#endif
+#ifndef LINUX_F_SETOWN_EX
+#define	LINUX_F_SETOWN_EX	15
+#define	LINUX_F_GETOWN_EX	16
+#define	LINUX_F_GETOWNER_UIDS	17
+#endif
+
+#define	LINUX_F_SPECIFIC_BASE	1024
+
+#define	LINUX_F_SETLEASE	(LINUX_F_SPECIFIC_BASE + 0)
+#define	LINUX_F_GETLEASE	(LINUX_F_SPECIFIC_BASE + 1)
+#define	LINUX_F_CANCELLK	(LINUX_F_SPECIFIC_BASE + 5)
+#define	LINUX_F_DUPFD_CLOEXEC	(LINUX_F_SPECIFIC_BASE + 6)
+#define	LINUX_F_NOTIFY		(LINUX_F_SPECIFIC_BASE + 2)
+#define	LINUX_F_SETPIPE_SZ	(LINUX_F_SPECIFIC_BASE + 7)
+#define	LINUX_F_GETPIPE_SZ	(LINUX_F_SPECIFIC_BASE + 8)
+
+#define	LINUX_F_GETLKP		36
+#define	LINUX_F_SETLKP		37
+#define	LINUX_F_SETLKPW		38
+
+#define	LINUX_F_OWNER_TID	0
+#define	LINUX_F_OWNER_PID	1
+#define	LINUX_F_OWNER_PGRP	2
 
 #ifndef LINUX_F_RDLCK
 #define	LINUX_F_RDLCK		0