diff -Naurp linux-2.6.12/arch/i386/kernel/syscall_table.S linux-2.6.12-unshare-p2/arch/i386/kernel/syscall_table.S
--- linux-2.6.12/arch/i386/kernel/syscall_table.S	2005-06-17 19:48:29.000000000 +0000
+++ linux-2.6.12-unshare-p2/arch/i386/kernel/syscall_table.S	2005-06-22 13:20:44.000000000 +0000
@@ -289,3 +289,4 @@ ENTRY(sys_call_table)
 	.long sys_add_key
 	.long sys_request_key
 	.long sys_keyctl
+	.long sys_unshare
diff -Naurp linux-2.6.12/include/asm-i386/unistd.h linux-2.6.12-unshare-p2/include/asm-i386/unistd.h
--- linux-2.6.12/include/asm-i386/unistd.h	2005-06-17 19:48:29.000000000 +0000
+++ linux-2.6.12-unshare-p2/include/asm-i386/unistd.h	2005-06-22 13:22:22.000000000 +0000
@@ -294,8 +294,9 @@
 #define __NR_add_key		286
 #define __NR_request_key	287
 #define __NR_keyctl		288
+#define __NR_unshare		289
 
-#define NR_syscalls 289
+#define NR_syscalls 290
 
 /*
  * user-visible error numbers are in the range -1 - -128: see
diff -Naurp linux-2.6.12/include/linux/syscalls.h linux-2.6.12-unshare-p2/include/linux/syscalls.h
--- linux-2.6.12/include/linux/syscalls.h	2005-06-17 19:48:29.000000000 +0000
+++ linux-2.6.12-unshare-p2/include/linux/syscalls.h	2005-06-22 13:24:09.000000000 +0000
@@ -505,4 +505,6 @@ asmlinkage long sys_request_key(const ch
 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
 			   unsigned long arg4, unsigned long arg5);
 
+asmlinkage long sys_unshare(unsigned long unshare_flags);
+
 #endif