From 13fbcb731220341537131b32cf01b1e70df7206d Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Tue, 16 Oct 2007 23:27:24 -0700 Subject: [PATCH] do_sigaction: don't worry about signal_pending() do_sigaction() returns -ERESTARTNOINTR if signal_pending(). The comment says: * If there might be a fatal signal pending on multiple * threads, make sure we take it before changing the action. I think this is not needed. We should only worry about SIGNAL_GROUP_EXIT case, bit it implies a pending SIGKILL which can't be cleared by do_sigaction. Kill this special case. Signed-off-by: Oleg Nesterov Acked-by: Roland McGrath Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/signal.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/kernel/signal.c b/kernel/signal.c index 90e2efad33a..2124ffadcfd 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -2294,15 +2294,6 @@ int do_sigaction(int sig, struct k_sigaction *act, struct k_sigaction *oact) k = ¤t->sighand->action[sig-1]; spin_lock_irq(¤t->sighand->siglock); - if (signal_pending(current)) { - /* - * If there might be a fatal signal pending on multiple - * threads, make sure we take it before changing the action. - */ - spin_unlock_irq(¤t->sighand->siglock); - return -ERESTARTNOINTR; - } - if (oact) *oact = *k; -- 2.41.1