mm: page_mkwrite change prototype to match fault

[safe/jmp/linux-2.6] / kernel / signal.c

diff --git a/kernel/signal.c b/kernel/signal.c
index e737597..1c88144 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -909,7 +909,9 @@ static void print_fatal_signal(struct pt_regs *regs, int signr)
        }
 #endif
        printk("\n");
+       preempt_disable();
        show_regs(regs);
+       preempt_enable();
 }
 
 static int __init setup_print_fatal_signals(char *str)
@@ -1365,7 +1367,6 @@ int do_notify_parent(struct task_struct *tsk, int sig)
        struct siginfo info;
        unsigned long flags;
        struct sighand_struct *psig;
-       struct task_cputime cputime;
        int ret = sig;
 
        BUG_ON(sig == -1);
@@ -1395,9 +1396,10 @@ int do_notify_parent(struct task_struct *tsk, int sig)
        info.si_uid = __task_cred(tsk)->uid;
        rcu_read_unlock();
 
-       thread_group_cputime(tsk, &cputime);
-       info.si_utime = cputime_to_jiffies(cputime.utime);
-       info.si_stime = cputime_to_jiffies(cputime.stime);
+       info.si_utime = cputime_to_clock_t(cputime_add(tsk->utime,
+                               tsk->signal->utime));
+       info.si_stime = cputime_to_clock_t(cputime_add(tsk->stime,
+                               tsk->signal->stime));
 
        info.si_status = tsk->exit_code & 0x7f;
        if (tsk->exit_code & 0x80)
@@ -1573,7 +1575,15 @@ static void ptrace_stop(int exit_code, int clear_code, siginfo_t *info)
        read_lock(&tasklist_lock);
        if (may_ptrace_stop()) {
                do_notify_parent_cldstop(current, CLD_TRAPPED);
+               /*
+                * Don't want to allow preemption here, because
+                * sys_ptrace() needs this task to be inactive.
+                *
+                * XXX: implement read_unlock_no_resched().
+                */
+               preempt_disable();
                read_unlock(&tasklist_lock);
+               preempt_enable_no_resched();
                schedule();
        } else {
                /*