Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756229Ab3IKQIR (ORCPT ); Wed, 11 Sep 2013 12:08:17 -0400 Received: from mail-pd0-f170.google.com ([209.85.192.170]:53961 "EHLO mail-pd0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756197Ab3IKQIM (ORCPT ); Wed, 11 Sep 2013 12:08:12 -0400 From: Jiang Liu To: Andrew Morton , Richard Henderson , Ivan Kokshaysky , Matt Turner , Shaohua Li Cc: liuj97@gmail.com, Jiang Liu , Ingo Molnar , Peter Zijlstra , Steven Rostedt , Jiri Kosina , Wang YanQing , linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Subject: [RFC PATCH v2 02/25] smp, alpha: kill SMP single function call interrupt Date: Thu, 12 Sep 2013 00:07:06 +0800 Message-Id: <1378915649-16395-3-git-send-email-liuj97@gmail.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1378915649-16395-1-git-send-email-liuj97@gmail.com> References: <1378915649-16395-1-git-send-email-liuj97@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1988 Lines: 70 From: Jiang Liu 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. Signed-off-by: Jiang Liu Cc: Jiang Liu --- arch/alpha/kernel/smp.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index 9dbbcb3..71d5c7d 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, }; @@ -498,7 +497,6 @@ smp_cpus_done(unsigned int max_cpus) ((bogosum + 2500) / (5000/HZ)) % 100); } - void smp_percpu_timer_interrupt(struct pt_regs *regs) { @@ -533,7 +531,6 @@ setup_profiling_timer(unsigned int multiplier) return -EINVAL; } - static void send_ipi_message(const struct cpumask *to_whom, enum ipi_message_type operation) { @@ -579,10 +576,6 @@ 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(); @@ -633,7 +626,7 @@ 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/