diff options
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 51 |
1 files changed, 1 insertions, 50 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index 0f6bbbe77b46..f2cbd4ed5cd4 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -503,41 +503,6 @@ int unhandled_signal(struct task_struct *tsk, int sig) return !tsk->ptrace; } -/* - * Notify the system that a driver wants to block all signals for this - * process, and wants to be notified if any signals at all were to be - * sent/acted upon. If the notifier routine returns non-zero, then the - * signal will be acted upon after all. If the notifier routine returns 0, - * then then signal will be blocked. Only one block per process is - * allowed. priv is a pointer to private data that the notifier routine - * can use to determine if the signal should be blocked or not. - */ -void -block_all_signals(int (*notifier)(void *priv), void *priv, sigset_t *mask) -{ - unsigned long flags; - - spin_lock_irqsave(¤t->sighand->siglock, flags); - current->notifier_mask = mask; - current->notifier_data = priv; - current->notifier = notifier; - spin_unlock_irqrestore(¤t->sighand->siglock, flags); -} - -/* Notify the system that blocking has ended. */ - -void -unblock_all_signals(void) -{ - unsigned long flags; - - spin_lock_irqsave(¤t->sighand->siglock, flags); - current->notifier = NULL; - current->notifier_data = NULL; - recalc_sigpending(); - spin_unlock_irqrestore(¤t->sighand->siglock, flags); -} - static void collect_signal(int sig, struct sigpending *list, siginfo_t *info) { struct sigqueue *q, *first = NULL; @@ -580,19 +545,8 @@ static int __dequeue_signal(struct sigpending *pending, sigset_t *mask, { int sig = next_signal(pending, mask); - if (sig) { - if (current->notifier) { - if (sigismember(current->notifier_mask, sig)) { - if (!(current->notifier)(current->notifier_data)) { - clear_thread_flag(TIF_SIGPENDING); - return 0; - } - } - } - + if (sig) collect_signal(sig, pending, info); - } - return sig; } @@ -2483,9 +2437,6 @@ EXPORT_SYMBOL(force_sig); EXPORT_SYMBOL(send_sig); EXPORT_SYMBOL(send_sig_info); EXPORT_SYMBOL(sigprocmask); -EXPORT_SYMBOL(block_all_signals); -EXPORT_SYMBOL(unblock_all_signals); - /* * System call entry points. |