MIPS: Add numa api support

Enable sys_mbind()/sys_get_mempolicy()/sys_set_mempolicy() for O32, N32,
and N64 ABIs. By the way, O32/N32 should use the compat version of
sys_migrate_pages()/sys_move_pages(), so fix that.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: John Crispin <john@phrozen.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7186/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/scall32-o32.S

@@ -495,8 +495,8 @@ EXPORT(sys_call_table)
 	PTR	sys_tgkill
 	PTR	sys_utimes
 	PTR	sys_mbind
-	PTR	sys_ni_syscall			/* sys_get_mempolicy */
-	PTR	sys_ni_syscall			/* 4270 sys_set_mempolicy */
+	PTR	sys_get_mempolicy
+	PTR	sys_set_mempolicy		/* 4270 */
 	PTR	sys_mq_open
 	PTR	sys_mq_unlink
 	PTR	sys_mq_timedsend

arch/mips/kernel/scall64-64.S

@@ -347,8 +347,8 @@ EXPORT(sys_call_table)
 	PTR	sys_tgkill			/* 5225 */
 	PTR	sys_utimes
 	PTR	sys_mbind
-	PTR	sys_ni_syscall			/* sys_get_mempolicy */
-	PTR	sys_ni_syscall			/* sys_set_mempolicy */
+	PTR	sys_get_mempolicy
+	PTR	sys_set_mempolicy
 	PTR	sys_mq_open			/* 5230 */
 	PTR	sys_mq_unlink
 	PTR	sys_mq_timedsend

arch/mips/kernel/scall64-n32.S

@@ -339,9 +339,9 @@ EXPORT(sysn32_call_table)
 	PTR	compat_sys_clock_nanosleep
 	PTR	sys_tgkill
 	PTR	compat_sys_utimes		/* 6230 */
-	PTR	sys_ni_syscall			/* sys_mbind */
-	PTR	sys_ni_syscall			/* sys_get_mempolicy */
-	PTR	sys_ni_syscall			/* sys_set_mempolicy */
+	PTR	compat_sys_mbind
+	PTR	compat_sys_get_mempolicy
+	PTR	compat_sys_set_mempolicy
 	PTR	compat_sys_mq_open
 	PTR	sys_mq_unlink			/* 6235 */
 	PTR	compat_sys_mq_timedsend
@@ -358,7 +358,7 @@ EXPORT(sysn32_call_table)
 	PTR	sys_inotify_init
 	PTR	sys_inotify_add_watch
 	PTR	sys_inotify_rm_watch
-	PTR	sys_migrate_pages		/* 6250 */
+	PTR	compat_sys_migrate_pages	/* 6250 */
 	PTR	sys_openat
 	PTR	sys_mkdirat
 	PTR	sys_mknodat
@@ -379,7 +379,7 @@ EXPORT(sysn32_call_table)
 	PTR	sys_sync_file_range
 	PTR	sys_tee
 	PTR	compat_sys_vmsplice		/* 6270 */
-	PTR	sys_move_pages
+	PTR	compat_sys_move_pages
 	PTR	compat_sys_set_robust_list
 	PTR	compat_sys_get_robust_list
 	PTR	compat_sys_kexec_load

arch/mips/kernel/scall64-o32.S

@@ -473,9 +473,9 @@ EXPORT(sys32_call_table)
 	PTR	compat_sys_clock_nanosleep	/* 4265 */
 	PTR	sys_tgkill
 	PTR	compat_sys_utimes
-	PTR	sys_ni_syscall			/* sys_mbind */
-	PTR	sys_ni_syscall			/* sys_get_mempolicy */
-	PTR	sys_ni_syscall			/* 4270 sys_set_mempolicy */
+	PTR	compat_sys_mbind
+	PTR	compat_sys_get_mempolicy
+	PTR	compat_sys_set_mempolicy	/* 4270 */
 	PTR	compat_sys_mq_open
 	PTR	sys_mq_unlink
 	PTR	compat_sys_mq_timedsend
@@ -492,7 +492,7 @@ EXPORT(sys32_call_table)
 	PTR	sys_inotify_init
 	PTR	sys_inotify_add_watch		/* 4285 */
 	PTR	sys_inotify_rm_watch
-	PTR	sys_migrate_pages
+	PTR	compat_sys_migrate_pages
 	PTR	compat_sys_openat
 	PTR	sys_mkdirat
 	PTR	sys_mknodat			/* 4290 */