ppc64: Dont force O_LARGEFILE on for 32 bit apps. From sparc64

arch/ppc64/kernel/entry.S

@@ -113,10 +113,6 @@ _GLOBAL(DoSyscall)
 	clrldi	r4,r4,32
 	clrldi	r5,r5,32
 	clrldi	r6,r6,32
-#if 0 /* XXX Why not ??? - Anton */
-	clrldi	r7,r7,32
-	clrldi	r8,r8,32
-#endif
 	b	17f
 15:
 #endif
@@ -187,10 +183,6 @@ _GLOBAL(ret_from_syscall_1)
 	clrldi	r4,r4,32
 	clrldi	r5,r5,32
 	clrldi	r6,r6,32
-#if 0 /* XXX Why not ??? - Anton */
-	clrldi	r7,r7,32
-	clrldi	r8,r8,32
-#endif
 	b	57f
 55:
 #endif

arch/ppc64/kernel/sys_ppc32.c

@@ -3877,19 +3877,36 @@ asmlinkage long sys32_nice(u32 increment)
 	return sys_nice((int)increment);
 }
 
-
-extern asmlinkage long sys_open(const char * filename, int flags, int mode);
-
-/* Note: it is necessary to treat flags and mode as unsigned ints,
- * with the corresponding cast to a signed int to insure that the 
- * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
- * and the register representation of a signed int (msr in 64-bit mode) is performed.
+/*
+ * This is just a version for 32-bit applications which does
+ * not force O_LARGEFILE on.
  */
-asmlinkage long sys32_open(const char * filename, int flags, int mode)
-{
-	return sys_open(filename, (int)flags, (int)mode);
-}
+long sys32_open(const char * filename, int flags, int mode)
+{
+	char * tmp;
+	int fd, error;
+
+	tmp = getname(filename);
+	fd = PTR_ERR(tmp);
+	if (!IS_ERR(tmp)) {
+		fd = get_unused_fd();
+		if (fd >= 0) {
+			struct file * f = filp_open(tmp, flags, mode);
+			error = PTR_ERR(f);
+			if (IS_ERR(f))
+				goto out_error;
+			fd_install(fd, f);
+		}
+out:
+		putname(tmp);
+	}
+	return fd;
 
+out_error:
+	put_unused_fd(fd);
+	fd = error;
+	goto out;
+}
 
 extern asmlinkage long sys_readlink(const char * path, char * buf, int bufsiz);