From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751930AbbAWFeL (ORCPT ); Fri, 23 Jan 2015 00:34:11 -0500 Received: from mga02.intel.com ([134.134.136.20]:62440 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750732AbbAWFeJ (ORCPT ); Fri, 23 Jan 2015 00:34:09 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,862,1389772800"; d="scan'208";a="444041838" From: Jiang Liu To: Thomas Gleixner , Richard Henderson , Ivan Kokshaysky , Matt Turner , Jiang Liu Cc: Borislav Petkov , Tony Luck , linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org Subject: [Resend Patch v4 01/16] smp, alpha: Kill SMP single function call interrupt Date: Fri, 23 Jan 2015 13:36:40 +0800 Message-Id: <1421991416-20297-2-git-send-email-jiang.liu@linux.intel.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1421991416-20297-1-git-send-email-jiang.liu@linux.intel.com> References: <1421991416-20297-1-git-send-email-jiang.liu@linux.intel.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: 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 99ac36d5de4e..2f24447fef92 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 -- 1.7.10.4