signal: cosmetic, s/from_ancestor_ns/force/ in prepare_signal() paths

oleg-nesterov · torvalds · commit def8cf72562e · 2012-03-23T16:58:41.000-07:00
Cosmetic, rename the from_ancestor_ns argument in prepare_signal()
paths.  After the previous change it doesn't match the reality.

Signed-off-by: Oleg Nesterov &lt;oleg@redhat.com&gt;
Cc: Tejun Heo &lt;tj@kernel.org&gt;
Cc: Anton Vorontsov &lt;anton.vorontsov@linaro.org&gt;
Cc: "Eric W. Biederman" &lt;ebiederm@xmission.com&gt;
Cc: KOSAKI Motohiro &lt;kosaki.motohiro@gmail.com&gt;
Cc: David Rientjes &lt;rientjes@google.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
diff --git a/kernel/signal.c b/kernel/signal.c
@@ -58,21 +58,20 @@ static int sig_handler_ignored(void __user *handler, int sig)
 		(handler == SIG_DFL && sig_kernel_ignore(sig));
 }
 
-static int sig_task_ignored(struct task_struct *t, int sig,
-		int from_ancestor_ns)
+static int sig_task_ignored(struct task_struct *t, int sig, bool force)
 {
 	void __user *handler;
 
 	handler = sig_handler(t, sig);
 
 	if (unlikely(t->signal->flags & SIGNAL_UNKILLABLE) &&
-			handler == SIG_DFL && !from_ancestor_ns)
+			handler == SIG_DFL && !force)
 		return 1;
 
 	return sig_handler_ignored(handler, sig);
 }
 
-static int sig_ignored(struct task_struct *t, int sig, int from_ancestor_ns)
+static int sig_ignored(struct task_struct *t, int sig, bool force)
 {
 	/*
 	 * Blocked signals are never ignored, since the
@@ -82,7 +81,7 @@ static int sig_ignored(struct task_struct *t, int sig, int from_ancestor_ns)
 	if (sigismember(&t->blocked, sig) || sigismember(&t->real_blocked, sig))
 		return 0;
 
-	if (!sig_task_ignored(t, sig, from_ancestor_ns))
+	if (!sig_task_ignored(t, sig, force))
 		return 0;
 
 	/*
@@ -855,7 +854,7 @@ static void ptrace_trap_notify(struct task_struct *t)
  * Returns true if the signal should be actually delivered, otherwise
  * it should be dropped.
  */
-static int prepare_signal(int sig, struct task_struct *p, int from_ancestor_ns)
+static int prepare_signal(int sig, struct task_struct *p, bool force)
 {
 	struct signal_struct *signal = p->signal;
 	struct task_struct *t;
@@ -915,7 +914,7 @@ static int prepare_signal(int sig, struct task_struct *p, int from_ancestor_ns)
 		}
 	}
 
-	return !sig_ignored(p, sig, from_ancestor_ns);
+	return !sig_ignored(p, sig, force);
 }
 
 /*
@@ -1602,7 +1601,7 @@ int send_sigqueue(struct sigqueue *q, struct task_struct *t, int group)
 
 	ret = 1; /* the signal is ignored */
 	result = TRACE_SIGNAL_IGNORED;
-	if (!prepare_signal(sig, t, 0))
+	if (!prepare_signal(sig, t, false))
 		goto out;
 
 	ret = 0;
