kernel/posix-cpu-timers.c: fix sparse warning

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

diff --git a/kernel/signal.c b/kernel/signal.c
index fb19aae..d803473 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -883,6 +883,8 @@ static int __send_signal(int sig, struct siginfo *info, struct task_struct *t,
                        break;
                default:
                        copy_siginfo(&q->info, info);
+                       if (from_ancestor_ns)
+                               q->info.si_pid = 0;
                        break;
                }
        } else if (!is_si_special(info)) {
@@ -1870,9 +1872,16 @@ relock:
 
                /*
                 * Global init gets no signals it doesn't want.
+                * Container-init gets no signals it doesn't want from same
+                * container.
+                *
+                * Note that if global/container-init sees a sig_kernel_only()
+                * signal here, the signal must have been generated internally
+                * or must have come from an ancestor namespace. In either
+                * case, the signal cannot be dropped.
                 */
                if (unlikely(signal->flags & SIGNAL_UNKILLABLE) &&
-                   !signal_group_exit(signal))
+                               !sig_kernel_only(signr))
                        continue;
 
                if (sig_kernel_stop(signr)) {