From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754712AbbETQqG (ORCPT ); Wed, 20 May 2015 12:46:06 -0400 Received: from mx1.redhat.com ([209.132.183.28]:42419 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754148AbbETQqD (ORCPT ); Wed, 20 May 2015 12:46:03 -0400 From: Vitaly Kuznetsov To: devel@linuxdriverproject.org Cc: "K. Y. Srinivasan" , Haiyang Zhang , linux-kernel@vger.kernel.org, Dexuan Cui , Ingo Molnar , "H. Peter Anvin" , Thomas Gleixner , x86@kernel.org Subject: [PATCH 1/3] Drivers: hv: vmbus: remove hv_synic_free_cpu() call from hv_synic_cleanup() Date: Wed, 20 May 2015 18:45:43 +0200 Message-Id: <1432140345-3841-2-git-send-email-vkuznets@redhat.com> In-Reply-To: <1432140345-3841-1-git-send-email-vkuznets@redhat.com> References: <1432140345-3841-1-git-send-email-vkuznets@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We already have hv_synic_free() which frees all per-cpu pages for all CPUs, let's remove the hv_synic_free_cpu() call from hv_synic_cleanup() so it will be possible to do separate cleanup (writing to MSRs) and final freeing. This is going to be used to assist kexec. Signed-off-by: Vitaly Kuznetsov --- drivers/hv/hv.c | 2 -- drivers/hv/vmbus_drv.c | 1 + 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c index d3943bc..5b87042 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -530,6 +530,4 @@ void hv_synic_cleanup(void *arg) rdmsrl(HV_X64_MSR_SCONTROL, sctrl.as_uint64); sctrl.enable = 0; wrmsrl(HV_X64_MSR_SCONTROL, sctrl.as_uint64); - - hv_synic_free_cpu(cpu); } diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 2b56260..612fc0a 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -1117,6 +1117,7 @@ static void __exit vmbus_exit(void) hv_cleanup(); for_each_online_cpu(cpu) smp_call_function_single(cpu, hv_synic_cleanup, NULL, 1); + hv_synic_free(); acpi_bus_unregister_driver(&vmbus_acpi_driver); hv_cpu_hotplug_quirk(false); } -- 1.9.3