X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fsh64%2Fkernel%2Fprocess.c;h=1da9c61d6823558b6d63c0cf82340102dc540a23;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=efde41c0cd669388142dcb58dd7c87f5818e2d58;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/arch/sh64/kernel/process.c b/arch/sh64/kernel/process.c
index efde41c0c..1da9c61d6 100644
--- a/arch/sh64/kernel/process.c
+++ b/arch/sh64/kernel/process.c
@@ -307,23 +307,19 @@ __setup("hlt", hlt_setup);
 
 static inline void hlt(void)
 {
-	if (hlt_counter)
-		return;
-
 	__asm__ __volatile__ ("sleep" : : : "memory");
 }
 
 /*
  * The idle loop on a uniprocessor SH..
  */
-void default_idle(void)
+void cpu_idle(void)
 {
 	/* endless idle loop with no priority at all */
 	while (1) {
 		if (hlt_counter) {
-			while (1)
-				if (need_resched())
-					break;
+			while (!need_resched())
+				cpu_relax();
 		} else {
 			local_irq_disable();
 			while (!need_resched()) {
@@ -334,13 +330,11 @@ void default_idle(void)
 			}
 			local_irq_enable();
 		}
+		preempt_enable_no_resched();
 		schedule();
+		preempt_disable();
 	}
-}
 
-void cpu_idle(void)
-{
-	default_idle();
 }
 
 void machine_restart(char * __unused)
@@ -750,7 +744,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 	}
 #endif
 	/* Copy from sh version */
-	childregs = ((struct pt_regs *)(THREAD_SIZE + (unsigned long) p->thread_info )) - 1;
+	childregs = (struct pt_regs *)(THREAD_SIZE + task_stack_page(p)) - 1;
 
 	*childregs = *regs;
 
@@ -758,7 +752,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 		childregs->regs[15] = usp;
 		p->thread.uregs = childregs;
 	} else {
-		childregs->regs[15] = (unsigned long)p->thread_info + THREAD_SIZE;
+		childregs->regs[15] = (unsigned long)task_stack_page(p) + THREAD_SIZE;
 	}
 
 	childregs->regs[9] = 0; /* Set return value for child */
@@ -781,26 +775,6 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 	return 0;
 }
 
-/*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
-	dump->magic = CMAGIC;
-	dump->start_code = current->mm->start_code;
-	dump->start_data  = current->mm->start_data;
-	dump->start_stack = regs->regs[15] & ~(PAGE_SIZE - 1);
-	dump->u_tsize = (current->mm->end_code - dump->start_code) >> PAGE_SHIFT;
-	dump->u_dsize = (current->mm->brk + (PAGE_SIZE-1) - dump->start_data) >> PAGE_SHIFT;
-	dump->u_ssize = (current->mm->start_stack - dump->start_stack +
-			 PAGE_SIZE - 1) >> PAGE_SHIFT;
-	/* Debug registers will come here. */
-
-	dump->regs = *regs;
-
-	dump->u_fpvalid = dump_fpu(regs, &dump->fpu);
-}
-
 asmlinkage int sys_fork(unsigned long r2, unsigned long r3,
 			unsigned long r4, unsigned long r5,
 			unsigned long r6, unsigned long r7,