vserver 1.9.5.x5

[linux-2.6.git] / arch / ppc / kernel / process.c

diff --git a/arch/ppc/kernel/process.c b/arch/ppc/kernel/process.c
index d9ab6a7..82de66e 100644 (file)
--- a/arch/ppc/kernel/process.c
+++ b/arch/ppc/kernel/process.c
@@ -321,21 +321,10 @@ void show_regs(struct pt_regs * regs)
        trap = TRAP(regs);
        if (trap == 0x300 || trap == 0x600)
                printk("DAR: %08lX, DSISR: %08lX\n", regs->dar, regs->dsisr);
-       printk("TASK = %p[%d] '%s' THREAD: %p",
+       printk("TASK = %p[%d] '%s' THREAD: %p\n",
               current, current->pid, current->comm, current->thread_info);
        printk("Last syscall: %ld ", current->thread.last_syscall);
 
-#if defined(CONFIG_4xx) && defined(DCRN_PLB0_BEAR)
-       printk("\nPLB0: bear= 0x%8.8x acr=   0x%8.8x besr=  0x%8.8x\n",
-           mfdcr(DCRN_PLB0_BEAR), mfdcr(DCRN_PLB0_ACR),
-           mfdcr(DCRN_PLB0_BESR));
-#endif
-#if defined(CONFIG_4xx) && defined(DCRN_POB0_BEAR)
-       printk("PLB0 to OPB: bear= 0x%8.8x besr0= 0x%8.8x besr1= 0x%8.8x\n",
-           mfdcr(DCRN_POB0_BEAR), mfdcr(DCRN_POB0_BESR0),
-           mfdcr(DCRN_POB0_BESR1));
-#endif
-
 #ifdef CONFIG_SMP
        printk(" CPU: %d", smp_processor_id());
 #endif /* CONFIG_SMP */
@@ -370,6 +359,10 @@ void exit_thread(void)
                last_task_used_math = NULL;
        if (last_task_used_altivec == current)
                last_task_used_altivec = NULL;
+#ifdef CONFIG_SPE
+       if (last_task_used_spe == current)
+               last_task_used_spe = NULL;
+#endif
 }
 
 void flush_thread(void)
@@ -378,6 +371,10 @@ void flush_thread(void)
                last_task_used_math = NULL;
        if (last_task_used_altivec == current)
                last_task_used_altivec = NULL;
+#ifdef CONFIG_SPE
+       if (last_task_used_spe == current)
+               last_task_used_spe = NULL;
+#endif
 }
 
 void
@@ -422,8 +419,6 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
        unsigned long sp = (unsigned long)p->thread_info + THREAD_SIZE;
        unsigned long childframe;
 
-       p->set_child_tid = p->clear_child_tid = NULL;
-
        CHECK_FULL_REGS(regs);
        /* Copy registers */
        sp -= sizeof(struct pt_regs);
@@ -482,6 +477,10 @@ void start_thread(struct pt_regs *regs, unsigned long nip, unsigned long sp)
                last_task_used_math = NULL;
        if (last_task_used_altivec == current)
                last_task_used_altivec = NULL;
+#ifdef CONFIG_SPE
+       if (last_task_used_spe == current)
+               last_task_used_spe = NULL;
+#endif
        memset(current->thread.fpr, 0, sizeof(current->thread.fpr));
        current->thread.fpscr = 0;
 #ifdef CONFIG_ALTIVEC
@@ -598,8 +597,11 @@ int sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
        preempt_enable();
        error = do_execve(filename, (char __user *__user *) a1,
                          (char __user *__user *) a2, regs);
-       if (error == 0)
+       if (error == 0) {
+               task_lock(current);
                current->ptrace &= ~PT_DTRACE;
+               task_unlock(current);
+       }
        putname(filename);
 out:
        return error;