diff options
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 27 |
1 files changed, 2 insertions, 25 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index f799a054f292..38ea9e2f1831 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -788,37 +788,14 @@ static int prepare_signal(int sig, struct task_struct *p, int from_ancestor_ns) } else if (sig == SIGCONT) { unsigned int why; /* - * Remove all stop signals from all queues, - * and wake all threads. + * Remove all stop signals from all queues, wake all threads. */ rm_from_queue(SIG_KERNEL_STOP_MASK, &signal->shared_pending); t = p; do { - unsigned int state; - task_clear_group_stop_pending(t); - rm_from_queue(SIG_KERNEL_STOP_MASK, &t->pending); - /* - * If there is a handler for SIGCONT, we must make - * sure that no thread returns to user mode before - * we post the signal, in case it was the only - * thread eligible to run the signal handler--then - * it must not do anything between resuming and - * running the handler. With the TIF_SIGPENDING - * flag set, the thread will pause and acquire the - * siglock that we hold now and until we've queued - * the pending signal. - * - * Wake up the stopped thread _after_ setting - * TIF_SIGPENDING - */ - state = __TASK_STOPPED; - if (sig_user_defined(t, SIGCONT) && !sigismember(&t->blocked, SIGCONT)) { - set_tsk_thread_flag(t, TIF_SIGPENDING); - state |= TASK_INTERRUPTIBLE; - } - wake_up_state(t, state); + wake_up_state(t, __TASK_STOPPED); } while_each_thread(p, t); /* |
