Commit 045f902d authored Oct 16, 2007 by Oleg Nesterov Committed by Linus Torvalds Oct 17, 2007

do_sigaction: remove now unneeded recalc_sigpending()



With the recent changes, do_sigaction()->recalc_sigpending_and_wake() can
never clear TIF_SIGPENDING. Instead, it can set this flag and wake up the
thread without any reason. Harmless, but unneeded and wastes CPU.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Roland McGrath <roland@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent d2ee7198

kernel/signal.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -2335,7 +2335,6 @@ int do_sigaction(int sig, struct k_sigaction act, struct k_sigaction oact)
		rm_from_queue_full(&mask, &t->signal->shared_pending);
		do {
		rm_from_queue_full(&mask, &t->pending);
		recalc_sigpending_and_wake(t);
		t = next_thread(t);
		} while (t != current);
		}