X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=kernel%2Fsignal.c;h=75f7341b0c397275ccd35b8ff29798a5a3d8af4b;hb=baf12ae29ab4cc6381e21b2e1a3af75a6a8f7566;hp=d3efafd8109a3e4597bf89213d8eaa8fa1852f33;hpb=150256d8aadb3a337c31efa9e175cbd25bf06b06;p=safe%2Fjmp%2Flinux-2.6

diff --git a/kernel/signal.c b/kernel/signal.c
index d3efafd..75f7341 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -283,7 +283,7 @@ static struct sigqueue *__sigqueue_alloc(struct task_struct *t, gfp_t flags,
 	return(q);
 }
 
-static inline void __sigqueue_free(struct sigqueue *q)
+static void __sigqueue_free(struct sigqueue *q)
 {
 	if (q->flags & SIGQUEUE_PREALLOC)
 		return;
@@ -1922,6 +1922,8 @@ int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka,
 	sigset_t *mask = &current->blocked;
 	int signr = 0;
 
+	try_to_freeze();
+
 relock:
 	spin_lock_irq(&current->sighand->siglock);
 	for (;;) {
@@ -2099,10 +2101,11 @@ long do_no_restart_syscall(struct restart_block *param)
 int sigprocmask(int how, sigset_t *set, sigset_t *oldset)
 {
 	int error;
-	sigset_t old_block;
 
 	spin_lock_irq(&current->sighand->siglock);
-	old_block = current->blocked;
+	if (oldset)
+		*oldset = current->blocked;
+
 	error = 0;
 	switch (how) {
 	case SIG_BLOCK:
@@ -2119,8 +2122,7 @@ int sigprocmask(int how, sigset_t *set, sigset_t *oldset)
 	}
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
-	if (oldset)
-		*oldset = old_block;
+
 	return error;
 }
 
@@ -2307,7 +2309,6 @@ sys_rt_sigtimedwait(const sigset_t __user *uthese,
 
 			timeout = schedule_timeout_interruptible(timeout);
 
-			try_to_freeze();
 			spin_lock_irq(&current->sighand->siglock);
 			sig = dequeue_signal(current, &these, &info);
 			current->blocked = current->real_blocked;
@@ -2430,7 +2431,7 @@ sys_rt_sigqueueinfo(int pid, int sig, siginfo_t __user *uinfo)
 }
 
 int
-do_sigaction(int sig, const struct k_sigaction *act, struct k_sigaction *oact)
+do_sigaction(int sig, struct k_sigaction *act, struct k_sigaction *oact)
 {
 	struct k_sigaction *k;
 	sigset_t mask;
@@ -2454,6 +2455,8 @@ do_sigaction(int sig, const struct k_sigaction *act, struct k_sigaction *oact)
 		*oact = *k;
 
 	if (act) {
+		sigdelsetmask(&act->sa.sa_mask,
+			      sigmask(SIGKILL) | sigmask(SIGSTOP));
 		/*
 		 * POSIX 3.3.1.3:
 		 *  "Setting a signal action to SIG_IGN for a signal that is
@@ -2479,8 +2482,6 @@ do_sigaction(int sig, const struct k_sigaction *act, struct k_sigaction *oact)
 			read_lock(&tasklist_lock);
 			spin_lock_irq(&t->sighand->siglock);
 			*k = *act;
-			sigdelsetmask(&k->sa.sa_mask,
-				      sigmask(SIGKILL) | sigmask(SIGSTOP));
 			sigemptyset(&mask);
 			sigaddset(&mask, sig);
 			rm_from_queue_full(&mask, &t->signal->shared_pending);
@@ -2495,8 +2496,6 @@ do_sigaction(int sig, const struct k_sigaction *act, struct k_sigaction *oact)
 		}
 
 		*k = *act;
-		sigdelsetmask(&k->sa.sa_mask,
-			      sigmask(SIGKILL) | sigmask(SIGSTOP));
 	}
 
 	spin_unlock_irq(&current->sighand->siglock);
@@ -2702,6 +2701,7 @@ sys_signal(int sig, __sighandler_t handler)
 
 	new_sa.sa.sa_handler = handler;
 	new_sa.sa.sa_flags = SA_ONESHOT | SA_NOMASK;
+	sigemptyset(&new_sa.sa.sa_mask);
 
 	ret = do_sigaction(sig, &new_sa, &old_sa);