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. Change-Id: I6a34f65244048e113815d6e5afaaed2911a8d93d 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>
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@ -2033,8 +2033,8 @@ static bool do_signal_stop(int signr)
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if (task_set_jobctl_pending(current, signr | gstop))
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sig->group_stop_count++;
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for (t = next_thread(current); t != current;
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t = next_thread(t)) {
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t = current;
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while_each_thread(current, t) {
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/*
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* Setting state to TASK_STOPPED for a group
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* stop is always done with the siglock held,
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@ -3108,8 +3108,7 @@ int do_sigaction(int sig, struct k_sigaction *act, struct k_sigaction *oact)
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rm_from_queue_full(&mask, &t->signal->shared_pending);
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do {
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rm_from_queue_full(&mask, &t->pending);
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t = next_thread(t);
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} while (t != current);
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} while_each_thread(current, t);
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}
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}
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