[PATCH] do_fork updates for ppc

Update ppc for mingo's do_fork changes.  Together with the pmac compile
fixes this allows me to stay at the bleeding edge with my my ibook..

arch/ppc/kernel/process.c

@@ -445,33 +445,26 @@ int sys_clone(unsigned long clone_flags, unsigned long usp, int *parent_tidp,
 	      void *child_threadptr, int *child_tidp, int p6,
 	      struct pt_regs *regs)
 {
- 	struct task_struct *p;
-
 	CHECK_FULL_REGS(regs);
 	if (usp == 0)
 		usp = regs->gpr[1];	/* stack pointer for child */
- 	p = do_fork(clone_flags & ~CLONE_IDLETASK, usp, regs, 0,
+ 	return do_fork(clone_flags & ~CLONE_IDLETASK, usp, regs, 0,
 			parent_tidp, child_tidp);
- 	return IS_ERR(p) ? PTR_ERR(p) : p->pid;
 }
 
 int sys_fork(int p1, int p2, int p3, int p4, int p5, int p6,
 	     struct pt_regs *regs)
 {
-	struct task_struct *p;
 	CHECK_FULL_REGS(regs);
-	p = do_fork(SIGCHLD, regs->gpr[1], regs, 0, NULL, NULL);
-	return IS_ERR(p) ? PTR_ERR(p) : p->pid;
+	return do_fork(SIGCHLD, regs->gpr[1], regs, 0, NULL, NULL);
 }
 
 int sys_vfork(int p1, int p2, int p3, int p4, int p5, int p6,
 	      struct pt_regs *regs)
 {
-	struct task_struct *p;
 	CHECK_FULL_REGS(regs);
-	p = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->gpr[1], regs,
-		    0, NULL, NULL);
-	return IS_ERR(p) ? PTR_ERR(p) : p->pid;
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->gpr[1],
+			regs, 0, NULL, NULL);
 }
 
 int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,

arch/ppc/kernel/smp.c

@@ -403,7 +403,7 @@ int __cpu_up(unsigned int cpu)
 	/* create a process for the processor */
 	/* only regs.msr is actually used, and 0 is OK for it */
 	memset(&regs, 0, sizeof(struct pt_regs));
-	p = do_fork(CLONE_VM|CLONE_IDLETASK, 0, &regs, 0, NULL, NULL);
+	p = copy_process(CLONE_VM|CLONE_IDLETASK, 0, &regs, 0, NULL, NULL);
 	if (IS_ERR(p))
 		panic("failed fork for CPU %u: %li", cpu, PTR_ERR(p));