[IA64] unshare system call registration for ia64

Registers system call for the ia64 architecture.

Reserves space for ppoll and pselect, and adds unshare at system
call number 1296.
Signed-off-by: Janak Desai <janak@us.ibm.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

arch/ia64/kernel/entry.S

@@ -1614,5 +1614,8 @@ sys_call_table:
 	data8 sys_readlinkat
 	data8 sys_fchmodat
 	data8 sys_faccessat
+	data8 sys_ni_syscall			// reserved for pselect
+	data8 sys_ni_syscall			// 1295 reserved for ppoll
+	data8 sys_unshare
 
 	.org sys_call_table + 8*NR_syscalls	// guard against failures to increase NR_syscalls

include/asm-ia64/unistd.h

@@ -283,12 +283,14 @@
 #define __NR_readlinkat			1291
 #define __NR_fchmodat			1292
 #define __NR_faccessat			1293
+/* 1294, 1295 reserved for pselect/ppoll */
+#define __NR_unshare			1296
 
 #ifdef __KERNEL__
 
 #include <linux/config.h>
 
-#define NR_syscalls			270 /* length of syscall table */
+#define NR_syscalls			273 /* length of syscall table */
 
 #define __ARCH_WANT_SYS_RT_SIGACTION