From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932931Ab3LDQPG (ORCPT ); Wed, 4 Dec 2013 11:15:06 -0500 Received: from mail-pb0-f47.google.com ([209.85.160.47]:42480 "EHLO mail-pb0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932648Ab3LDQPC (ORCPT ); Wed, 4 Dec 2013 11:15:02 -0500 From: Jiang Liu To: Andrew Morton , Shaohua Li , Richard Henderson , Ivan Kokshaysky , Matt Turner , Thomas Gleixner , Chen Gang , Paul Gortmaker , linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Jiang Liu , Ingo Molnar , Peter Zijlstra , Steven Rostedt , Jiri Kosina , Wang YanQing , linux-arch@vger.kernel.org Subject: [RFC PATCH v3 03/19] smp, alpha: kill SMP single function call interrupt Date: Thu, 5 Dec 2013 00:12:54 +0800 Message-Id: <1386173591-28514-4-git-send-email-liuj97@gmail.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1386173591-28514-1-git-send-email-liuj97@gmail.com> References: <1386173591-28514-1-git-send-email-liuj97@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit 9a46ad6d6df3b54 "smp: make smp_call_function_many() use logic similar to smp_call_function_single()" has unified the way to handle single and multiple cross-CPU function calls. Now only one interrupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton Cc: Shaohua Li Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Steven Rostedt Cc: Jiri Kosina Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: linux-alpha@vger.kernel.org Signed-off-by: Jiang Liu --- arch/alpha/kernel/smp.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index 99ac36d..2f24447 100644 --- a/arch/alpha/kernel/smp.c +++ b/arch/alpha/kernel/smp.c @@ -63,7 +63,6 @@ static struct { enum ipi_message_type { IPI_RESCHEDULE, IPI_CALL_FUNC, - IPI_CALL_FUNC_SINGLE, IPI_CPU_STOP, }; @@ -506,7 +505,6 @@ setup_profiling_timer(unsigned int multiplier) return -EINVAL; } - static void send_ipi_message(const struct cpumask *to_whom, enum ipi_message_type operation) { @@ -552,10 +550,6 @@ handle_ipi(struct pt_regs *regs) generic_smp_call_function_interrupt(); break; - case IPI_CALL_FUNC_SINGLE: - generic_smp_call_function_single_interrupt(); - break; - case IPI_CPU_STOP: halt(); @@ -606,7 +600,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask) void arch_send_call_function_single_ipi(int cpu) { - send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE); + send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC); } static void -- 1.8.1.2