X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fm68k%2Fkernel%2Fprocess.c;h=33648efb772eadde09a4f517353c85660ea1b895;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=93b043e2a4359985b80ab1890135ccc1e57351dc;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index 93b043e2a..33648efb7 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -77,7 +77,7 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
 /*
  * The idle loop on an m68k..
  */
-void default_idle(void)
+static void default_idle(void)
 {
 	if (!need_resched())
 #if defined(MACH_ATARI_ONLY) && !defined(CONFIG_HADES)
@@ -102,7 +102,9 @@ void cpu_idle(void)
 	while (1) {
 		while (!need_resched())
 			idle();
+		preempt_enable_no_resched();
 		schedule();
+		preempt_disable();
 	}
 }
 
@@ -113,8 +115,6 @@ void machine_restart(char * __unused)
 	for (;;);
 }
 
-EXPORT_SYMBOL(machine_restart);
-
 void machine_halt(void)
 {
 	if (mach_halt)
@@ -122,8 +122,6 @@ void machine_halt(void)
 	for (;;);
 }
 
-EXPORT_SYMBOL(machine_halt);
-
 void machine_power_off(void)
 {
 	if (mach_power_off)
@@ -131,7 +129,8 @@ void machine_power_off(void)
 	for (;;);
 }
 
-EXPORT_SYMBOL(machine_power_off);
+void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
 
 void show_regs(struct pt_regs * regs)
 {
@@ -242,10 +241,9 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 {
 	struct pt_regs * childregs;
 	struct switch_stack * childstack, *stack;
-	unsigned long stack_offset, *retp;
+	unsigned long *retp;
 
-	stack_offset = THREAD_SIZE - sizeof(struct pt_regs);
-	childregs = (struct pt_regs *) ((unsigned long) (p->thread_info) + stack_offset);
+	childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1;
 
 	*childregs = *regs;
 	childregs->d0 = 0;
@@ -390,7 +388,7 @@ unsigned long get_wchan(struct task_struct *p)
 	if (!p || p == current || p->state == TASK_RUNNING)
 		return 0;
 
-	stack_page = (unsigned long)(p->thread_info);
+	stack_page = (unsigned long)task_stack_page(p);
 	fp = ((struct switch_stack *)p->thread.ksp)->a6;
 	do {
 		if (fp < stack_page+sizeof(struct thread_info) ||