From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753324Ab1HOVwS (ORCPT ); Mon, 15 Aug 2011 17:52:18 -0400 Received: from p3plsmtps2ded03.prod.phx3.secureserver.net ([208.109.80.60]:36435 "HELO p3plsmtps2ded03-01.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752601Ab1HOVwQ (ORCPT ); Mon, 15 Aug 2011 17:52:16 -0400 From: "K. Y. Srinivasan" To: gregkh@suse.de, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, virtualization@lists.osdl.org Cc: "K. Y. Srinivasan" , Haiyang Zhang Subject: [PATCH 3/8] Staging: hv: vmbus: Check for events before messages Date: Mon, 15 Aug 2011 15:12:02 -0700 Message-Id: <1313446327-10650-3-git-send-email-kys@microsoft.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1313446327-10650-1-git-send-email-kys@microsoft.com> References: <1313446210-10611-1-git-send-email-kys@microsoft.com> <1313446327-10650-1-git-send-email-kys@microsoft.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hyper-V requires that events be processed before processing messages. Make the necessary code adjustments. Signed-off-by: K. Y. Srinivasan Signed-off-by: Haiyang Zhang --- drivers/staging/hv/vmbus_drv.c | 18 +++++++++--------- 1 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c index 1d4e878..536466b 100644 --- a/drivers/staging/hv/vmbus_drv.c +++ b/drivers/staging/hv/vmbus_drv.c @@ -418,15 +418,6 @@ static irqreturn_t vmbus_isr(int irq, void *dev_id) union hv_synic_event_flags *event; bool handled = false; - page_addr = hv_context.synic_message_page[cpu]; - msg = (struct hv_message *)page_addr + VMBUS_MESSAGE_SINT; - - /* Check if there are actual msgs to be process */ - if (msg->header.message_type != HVMSG_NONE) { - handled = true; - vmbus_on_msg_dpc(0); - } - page_addr = hv_context.synic_event_page[cpu]; event = (union hv_synic_event_flags *)page_addr + VMBUS_MESSAGE_SINT; @@ -436,6 +427,15 @@ static irqreturn_t vmbus_isr(int irq, void *dev_id) tasklet_schedule(&event_dpc); } + page_addr = hv_context.synic_message_page[cpu]; + msg = (struct hv_message *)page_addr + VMBUS_MESSAGE_SINT; + + /* Check if there are actual msgs to be process */ + if (msg->header.message_type != HVMSG_NONE) { + handled = true; + vmbus_on_msg_dpc(0); + } + if (handled) return IRQ_HANDLED; else -- 1.7.4.1