[PATCH] ppc64 update for do_fork() change

This updates ppc64 for the do_fork() semantics change.

arch/ppc64/kernel/process.c

@@ -300,7 +300,6 @@ int sys_clone(unsigned long clone_flags, unsigned long p2, unsigned long p3,
 	      unsigned long p4, unsigned long p5, unsigned long p6,
 	      struct pt_regs *regs)
 {
-	struct task_struct *p;
 	unsigned long parent_tidptr = 0;
 	unsigned long child_tidptr = 0;
 
@@ -320,36 +319,29 @@ int sys_clone(unsigned long clone_flags, unsigned long p2, unsigned long p3,
 	if (regs->msr & MSR_FP)
 		giveup_fpu(current);
 
-	p = do_fork(clone_flags & ~CLONE_IDLETASK, p2, regs, 0,
+	return do_fork(clone_flags & ~CLONE_IDLETASK, p2, regs, 0,
 		    (int *)parent_tidptr, (int *)child_tidptr);
-	return IS_ERR(p) ? PTR_ERR(p) : p->pid;
 }
 
 int sys_fork(unsigned long p1, unsigned long p2, unsigned long p3,
 	     unsigned long p4, unsigned long p5, unsigned long p6,
 	     struct pt_regs *regs)
 {
-	struct task_struct *p;
-
 	if (regs->msr & MSR_FP)
 		giveup_fpu(current);
 
-	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(unsigned long p1, unsigned long p2, unsigned long p3,
 	      unsigned long p4, unsigned long p5, unsigned long p6,
 	      struct pt_regs *regs)
 {
-	struct task_struct *p;
-
 	if (regs->msr & MSR_FP)
 		giveup_fpu(current);
 
-	p = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->gpr[1], regs, 0,
+	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->gpr[1], regs, 0,
 	            NULL, NULL);
-	return IS_ERR(p) ? PTR_ERR(p) : p->pid;
 }
 
 int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,

arch/ppc64/kernel/smp.c

@@ -610,10 +610,11 @@ int __devinit __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));
 
+	wake_up_forked_process(p);
 	init_idle(p, cpu);
 	unhash_process(p);