kernel/signal.c: change do_signal_stop/do_sigaction to use while_each_thread()
Change do_signal_stop() and do_sigaction() to avoid next_thread() and use
while_each_thread() instead.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Kees Cook <keescook@chromium.org>
Reviewed-by: Sameer Nanda <snanda@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/kernel/signal.c b/kernel/signal.c
index 940b30e..52f881d 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2047,8 +2047,8 @@
if (task_set_jobctl_pending(current, signr | gstop))
sig->group_stop_count++;
- for (t = next_thread(current); t != current;
- t = next_thread(t)) {
+ t = current;
+ while_each_thread(current, t) {
/*
* Setting state to TASK_STOPPED for a group
* stop is always done with the siglock held,
@@ -3125,8 +3125,7 @@
rm_from_queue_full(&mask, &t->signal->shared_pending);
do {
rm_from_queue_full(&mask, &t->pending);
- t = next_thread(t);
- } while (t != current);
+ } while_each_thread(current, t);
}
}