From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S939340AbXGSPdK (ORCPT ); Thu, 19 Jul 2007 11:33:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S939327AbXGSPcg (ORCPT ); Thu, 19 Jul 2007 11:32:36 -0400 Received: from il.qumranet.com ([82.166.9.18]:49773 "EHLO il.qumranet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S937211AbXGSPce (ORCPT ); Thu, 19 Jul 2007 11:32:34 -0400 From: Avi Kivity To: tony.luck@intel.com Cc: linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org, kvm-devel@lists.sourceforge.net, Avi Kivity Subject: [PATCH] ia64: Allow smp_call_function_single() to current cpu Date: Thu, 19 Jul 2007 18:32:43 +0300 Message-Id: <11848591631239-git-send-email-avi@qumranet.com> X-Mailer: git-send-email 1.5.2.4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This removes the requirement for callers to get_cpu() to check in simple cases. i386 and x86_64 already received a similar treatment. Signed-off-by: Avi Kivity --- arch/ia64/kernel/smp.c | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-) diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c index b3a47f9..381f9bf 100644 --- a/arch/ia64/kernel/smp.c +++ b/arch/ia64/kernel/smp.c @@ -346,7 +346,7 @@ smp_flush_tlb_mm (struct mm_struct *mm) } /* - * Run a function on another CPU + * Run a function on a specific CPU * The function to run. This must be fast and non-blocking. * An arbitrary pointer to pass to the function. * Currently unused. @@ -366,9 +366,11 @@ smp_call_function_single (int cpuid, void (*func) (void *info), void *info, int int me = get_cpu(); /* prevent preemption and reschedule on another processor */ if (cpuid == me) { - printk(KERN_INFO "%s: trying to call self\n", __FUNCTION__); + local_irq_disable(); + func(info); + local_irq_enable(); put_cpu(); - return -EBUSY; + return 0; } data.func = func; -- 1.5.2.4