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 <[email protected]> Acked-by: Roland McGrath <[email protected]> Cc: Ingo Molnar <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
kevsmith · Oct 17, 2007 · 045f902 · 045f902
1 parent d2ee719
commit 045f902
Showing 1 changed file with 0 additions and 1 deletion.
diff --git a/kernel/signal.c b/kernel/signal.c
@@ -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);
 		}