From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760388Ab2BNLtW (ORCPT ); Tue, 14 Feb 2012 06:49:22 -0500 Received: from arkanian.console-pimps.org ([212.110.184.194]:57684 "EHLO arkanian.console-pimps.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760195Ab2BNLm0 (ORCPT ); Tue, 14 Feb 2012 06:42:26 -0500 From: Matt Fleming To: linux-arch@vger.kernel.org Cc: Oleg Nesterov , Andrew Morton , linux-kernel@vger.kernel.org, Matt Fleming , Tony Luck , Fenghua Yu Subject: [PATCH 12/40] ia64: Use set_current_blocked() and block_sigmask() Date: Tue, 14 Feb 2012 11:40:45 +0000 Message-Id: <1329219673-28711-13-git-send-email-matt@console-pimps.org> X-Mailer: git-send-email 1.7.4.4 In-Reply-To: <1329219673-28711-1-git-send-email-matt@console-pimps.org> References: <1329219673-28711-1-git-send-email-matt@console-pimps.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Matt Fleming As described in e6fa16ab ("signal: sigprocmask() should do retarget_shared_pending()") the modification of current->blocked is incorrect as we need to check whether the signal we're about to block is pending in the shared queue. Also, use the new helper function introduced in commit 5e6292c0f28f ("signal: add block_sigmask() for adding sigmask to current->blocked") which centralises the code for updating current->blocked after successfully delivering a signal and reduces the amount of duplicate code across architectures. In the past some architectures got this code wrong, so using this helper function should stop that from happening again. Cc: Oleg Nesterov Cc: Tony Luck Cc: Fenghua Yu Signed-off-by: Matt Fleming --- arch/ia64/kernel/signal.c | 15 ++------------- 1 files changed, 2 insertions(+), 13 deletions(-) diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c index 7bdafc8..7523501 100644 --- a/arch/ia64/kernel/signal.c +++ b/arch/ia64/kernel/signal.c @@ -201,13 +201,7 @@ ia64_rt_sigreturn (struct sigscratch *scr) goto give_sigsegv; sigdelsetmask(&set, ~_BLOCKABLE); - - spin_lock_irq(¤t->sighand->siglock); - { - current->blocked = set; - recalc_sigpending(); - } - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); if (restore_sigcontext(sc, scr)) goto give_sigsegv; @@ -427,12 +421,7 @@ handle_signal (unsigned long sig, struct k_sigaction *ka, siginfo_t *info, sigse if (!setup_frame(sig, ka, info, oldset, scr)) return 0; - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked, ¤t->blocked, &ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked, sig); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + block_sigmask(ka, sig); /* * Let tracing know that we've done the handler setup. -- 1.7.4.4