[PATCH] powerpc: Wire up *at syscalls

Wire up *at syscalls.

This patch has been tested on ppc64 (using glibc's testsuite, both 32bit
and 64bit), and compile-tested for ppc32 (I have currently no ppc32 system
available, but I expect no problems).

Signed-off-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/kernel/systbl.S

@@ -325,6 +325,19 @@ SYSCALL(unshare)
 SYSCALL(splice)
 SYSCALL(tee)
 SYSCALL(vmsplice)
+COMPAT_SYS(openat)
+SYSCALL(mkdirat)
+SYSCALL(mknodat)
+SYSCALL(fchownat)
+COMPAT_SYS(futimesat)
+SYSX(sys_newfstatat, sys_fstatat64, sys_fstatat64)
+SYSCALL(unlinkat)
+SYSCALL(renameat)
+SYSCALL(linkat)
+SYSCALL(symlinkat)
+SYSCALL(readlinkat)
+SYSCALL(fchmodat)
+SYSCALL(faccessat)
 
 /*
  * please add new calls to arch/powerpc/platforms/cell/spu_callbacks.c

arch/powerpc/platforms/cell/spu_callbacks.c

@@ -319,6 +319,19 @@ void *spu_syscall_table[] = {
 	[__NR_splice]			sys_splice,
 	[__NR_tee]			sys_tee,
 	[__NR_vmsplice]			sys_vmsplice,
+	[__NR_openat]			sys_openat,
+	[__NR_mkdirat]			sys_mkdirat,
+	[__NR_mknodat]			sys_mknodat,
+	[__NR_fchownat]			sys_fchownat,
+	[__NR_futimesat]		sys_futimesat,
+	[__NR_newfstatat]		sys_newfstatat,
+	[__NR_unlinkat]			sys_unlinkat,
+	[__NR_renameat]			sys_renameat,
+	[__NR_linkat]			sys_linkat,
+	[__NR_symlinkat]		sys_symlinkat,
+	[__NR_readlinkat]		sys_readlinkat,
+	[__NR_fchmodat]			sys_fchmodat,
+	[__NR_faccessat]		sys_faccessat,
 };
 
 long spu_sys_callback(struct spu_syscall_block *s)

fs/stat.c

@@ -261,7 +261,7 @@ asmlinkage long sys_newlstat(char __user *filename, struct stat __user *statbuf)
 	return error;
 }
 
-#ifndef __ARCH_WANT_STAT64
+#if !defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_SYS_NEWFSTATAT)
 asmlinkage long sys_newfstatat(int dfd, char __user *filename,
 				struct stat __user *statbuf, int flag)
 {

include/asm-powerpc/unistd.h

@@ -304,8 +304,25 @@
 #define __NR_splice		283
 #define __NR_tee		284
 #define __NR_vmsplice		285
+#define __NR_openat		286
+#define __NR_mkdirat		287
+#define __NR_mknodat		288
+#define __NR_fchownat		289
+#define __NR_futimesat		290
+#ifdef __powerpc64__
+#define __NR_newfstatat		291
+#else
+#define __NR_fstatat64		291
+#endif
+#define __NR_unlinkat		292
+#define __NR_renameat		293
+#define __NR_linkat		294
+#define __NR_symlinkat		295
+#define __NR_readlinkat		296
+#define __NR_fchmodat		297
+#define __NR_faccessat		298
 
-#define __NR_syscalls		286
+#define __NR_syscalls		299
 
 #ifdef __KERNEL__
 #define __NR__exit __NR_exit
@@ -458,6 +475,7 @@ type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6
 #ifdef CONFIG_PPC64
 #define __ARCH_WANT_COMPAT_SYS_TIME
 #define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
+#define __ARCH_WANT_SYS_NEWFSTATAT
 #endif
 
 /*