perf events: Don't generate events for the idle task when exclude_idle is set

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

diff --git a/kernel/exit.c b/kernel/exit.c
index 2cc69eb..e61891f 100644 (file)
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -976,8 +976,6 @@ NORET_TYPE void do_exit(long code)
                disassociate_ctty(1);
 
        module_put(task_thread_info(tsk)->exec_domain->module);
-       if (tsk->binfmt)
-               module_put(tsk->binfmt->module);
 
        proc_exit_connector(tsk);
 
@@ -993,8 +991,6 @@ NORET_TYPE void do_exit(long code)
        tsk->mempolicy = NULL;
 #endif
 #ifdef CONFIG_FUTEX
-       if (unlikely(!list_empty(&tsk->pi_state_list)))
-               exit_pi_state_list(tsk);
        if (unlikely(current->pi_state_cache))
                kfree(current->pi_state_cache);
 #endif
@@ -1140,18 +1136,20 @@ static int wait_noreap_copyout(struct wait_opts *wo, struct task_struct *p,
 
        put_task_struct(p);
        infop = wo->wo_info;
-       if (!retval)
-               retval = put_user(SIGCHLD, &infop->si_signo);
-       if (!retval)
-               retval = put_user(0, &infop->si_errno);
-       if (!retval)
-               retval = put_user((short)why, &infop->si_code);
-       if (!retval)
-               retval = put_user(pid, &infop->si_pid);
-       if (!retval)
-               retval = put_user(uid, &infop->si_uid);
-       if (!retval)
-               retval = put_user(status, &infop->si_status);
+       if (infop) {
+               if (!retval)
+                       retval = put_user(SIGCHLD, &infop->si_signo);
+               if (!retval)
+                       retval = put_user(0, &infop->si_errno);
+               if (!retval)
+                       retval = put_user((short)why, &infop->si_code);
+               if (!retval)
+                       retval = put_user(pid, &infop->si_pid);
+               if (!retval)
+                       retval = put_user(uid, &infop->si_uid);
+               if (!retval)
+                       retval = put_user(status, &infop->si_status);
+       }
        if (!retval)
                retval = pid;
        return retval;