perf events, x86/stacktrace: Make stack walking optional

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

diff --git a/kernel/signal.c b/kernel/signal.c
index b65879d..1814e68 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -423,7 +423,7 @@ still_pending:
                 */
                info->si_signo = sig;
                info->si_errno = 0;
-               info->si_code = 0;
+               info->si_code = SI_USER;
                info->si_pid = 0;
                info->si_uid = 0;
        }
@@ -1062,12 +1062,6 @@ force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
        return ret;
 }
 
-void
-force_sig_specific(int sig, struct task_struct *t)
-{
-       force_sig_info(sig, SEND_SIG_FORCED, t);
-}
-
 /*
  * Nuke all other threads in the group.
  */
@@ -1846,11 +1840,6 @@ relock:
 
        for (;;) {
                struct k_sigaction *ka;
-
-               if (unlikely(signal->group_stop_count > 0) &&
-                   do_signal_stop(0))
-                       goto relock;
-
                /*
                 * Tracing can induce an artifical signal and choose sigaction.
                 * The return value in @signr determines the default action,
@@ -1862,6 +1851,10 @@ relock:
                if (unlikely(signr != 0))
                        ka = return_ka;
                else {
+                       if (unlikely(signal->group_stop_count > 0) &&
+                           do_signal_stop(0))
+                               goto relock;
+
                        signr = dequeue_signal(current, &current->blocked,
                                               info);