[SPARC]: Fix robust futex syscalls and wire up migrate_pages.

When I added the entries for the robust futex syscall entries, I
forgot to bump NR_SYSCALLS.  The current situation is error-prone
because NR_SYSCALLS lives in entry.S where the system call limit
checks are enforced.  Move the definition to asm/unistd.h in order to
make this mistake much more difficult to make.

And wire up sys_migrate_pages since the powerpc folks implemented the
compat wrapper for us.

Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc/kernel/entry.S

@@ -32,13 +32,12 @@
 #include <asm/mxcc.h>
 #include <asm/thread_info.h>
 #include <asm/param.h>
+#include <asm/unistd.h>
 
 #include <asm/asmmacro.h>
 
 #define curptr      g6
 
-#define NR_SYSCALLS 300      /* Each OS is different... */
-
 /* These are just handy. */
 #define _SV	save	%sp, -STACKFRAME_SZ, %sp
 #define _RS     restore 

arch/sparc/kernel/systbls.S

@@ -78,7 +78,7 @@ sys_call_table:
 /*285*/	.long sys_mkdirat, sys_mknodat, sys_fchownat, sys_futimesat, sys_fstatat64
 /*290*/	.long sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
 /*295*/	.long sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll, sys_unshare
-/*300*/	.long sys_set_robust_list, sys_get_robust_list
+/*300*/	.long sys_set_robust_list, sys_get_robust_list, sys_migrate_pages
 
 #ifdef CONFIG_SUNOS_EMUL
 	/* Now the SunOS syscall table. */
@@ -190,6 +190,7 @@ sunos_sys_table:
 /*290*/	.long sunos_nosys, sunos_nosys, sunos_nosys
 	.long sunos_nosys, sunos_nosys, sunos_nosys
 	.long sunos_nosys, sunos_nosys, sunos_nosys
-	.long sunos_nosys, sunos_nosys, sunos_nosys
+	.long sunos_nosys
+/*300*/	.long sunos_nosys, sunos_nosys, sunos_nosys
 
 #endif

arch/sparc64/kernel/entry.S

@@ -22,11 +22,10 @@
 #include <asm/auxio.h>
 #include <asm/sfafsr.h>
 #include <asm/pil.h>
+#include <asm/unistd.h>
 
 #define curptr      g6
 
-#define NR_SYSCALLS 300      /* Each OS is different... */
-
 	.text
 	.align		32
 

arch/sparc64/kernel/systbls.S

@@ -79,7 +79,7 @@ sys_call_table32:
 	.word sys_mkdirat, sys_mknodat, sys_fchownat, compat_sys_futimesat, compat_sys_fstatat64
 /*290*/	.word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
 	.word sys_fchmodat, sys_faccessat, compat_sys_pselect6, compat_sys_ppoll, sys_unshare
-/*300*/	.word compat_sys_set_robust_list, compat_sys_get_robust_list
+/*300*/	.word compat_sys_set_robust_list, compat_sys_get_robust_list, compat_sys_migrate_pages
 
 #endif /* CONFIG_COMPAT */
 
@@ -149,7 +149,7 @@ sys_call_table:
 	.word sys_mkdirat, sys_mknodat, sys_fchownat, sys_futimesat, sys_fstatat64
 /*290*/	.word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
 	.word sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll, sys_unshare
-/*300*/	.word sys_set_robust_list, sys_get_robust_list
+/*300*/	.word sys_set_robust_list, sys_get_robust_list, sys_migrate_pages
 
 #if defined(CONFIG_SUNOS_EMUL) || defined(CONFIG_SOLARIS_EMUL) || \
     defined(CONFIG_SOLARIS_EMUL_MODULE)
@@ -262,5 +262,7 @@ sunos_sys_table:
 /*290*/	.word sunos_nosys, sunos_nosys, sunos_nosys
 	.word sunos_nosys, sunos_nosys, sunos_nosys
 	.word sunos_nosys, sunos_nosys, sunos_nosys
-	.word sunos_nosys, sunos_nosys, sunos_nosys
+	.word sunos_nosys
+/*300*/	.word sunos_nosys, sunos_nosys, sunos_nosys
+
 #endif

include/asm-sparc/unistd.h

@@ -318,12 +318,15 @@
 #define __NR_unshare		299
 #define __NR_set_robust_list	300
 #define __NR_get_robust_list	301
+#define __NR_migrate_pages	302
+
+#define NR_SYSCALLS		303
 
 #ifdef __KERNEL__
-/* WARNING: You MAY NOT add syscall numbers larger than 301, since
+/* WARNING: You MAY NOT add syscall numbers larger than 302, since
  *          all of the syscall tables in the Sparc kernel are
- *          sized to have 301 entries (starting at zero).  Therefore
- *          find a free slot in the 0-301 range.
+ *          sized to have 302 entries (starting at zero).  Therefore
+ *          find a free slot in the 0-302 range.
  */
 
 #define _syscall0(type,name) \

include/asm-sparc64/unistd.h

@@ -320,12 +320,16 @@
 #define __NR_unshare		299
 #define __NR_set_robust_list	300
 #define __NR_get_robust_list	301
+#define __NR_migrate_pages	302
+
+#define NR_SYSCALLS		303
 
 #ifdef __KERNEL__
-/* WARNING: You MAY NOT add syscall numbers larger than 301, since
+
+/* WARNING: You MAY NOT add syscall numbers larger than 302, since
  *          all of the syscall tables in the Sparc kernel are
- *          sized to have 301 entries (starting at zero).  Therefore
- *          find a free slot in the 0-301 range.
+ *          sized to have 302 entries (starting at zero).  Therefore
+ *          find a free slot in the 0-302 range.
  */
 
 #define _syscall0(type,name) \