From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751926AbdJ2TWV (ORCPT ); Sun, 29 Oct 2017 15:22:21 -0400 Received: from a2nlsmtp01-02.prod.iad2.secureserver.net ([198.71.225.36]:48576 "EHLO a2nlsmtp01-02.prod.iad2.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751733AbdJ2TWT (ORCPT ); Sun, 29 Oct 2017 15:22:19 -0400 x-originating-ip: 107.180.71.197 From: kys@exchange.microsoft.com To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, olaf@aepfle.de, apw@canonical.com, vkuznets@redhat.com, jasowang@redhat.com, leann.ogasawara@canonical.com, marcelo.cerri@canonical.com, sthemmin@microsoft.com Cc: "K . Y . Srinivasan" Subject: [PATCH 02/17] hyper-v: trace vmbus_on_message() Date: Sun, 29 Oct 2017 12:21:01 -0700 Message-Id: <20171029192116.12466-2-kys@exchange.microsoft.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20171029192116.12466-1-kys@exchange.microsoft.com> References: <20171029192030.12356-1-kys@exchange.microsoft.com> <20171029192116.12466-1-kys@exchange.microsoft.com> Reply-To: kys@microsoft.com X-CMAE-Envelope: MS4wfJGLjs7Zl28CLBgD3LQPxVEh42kJRCaL3VZhAzSEOUxncOHqWSI65I0OQ5bvYp1JTFmMTobtWKiXp+dOn6jOawZ/dDUHtXZeeec5bff/H/nkPJVz8R4c wA9kuADbqrkjm5EXjH1kcNKzLuPwmCuIBGbHMP+Hlkgz6CFlQufSNvGhvtaktjyLRdaFj5Sz75IzlyOXaZF/O750EyMJop2zjxysaeM8sLDRGod0bGwEcQyA R2cc828mTcuxuhg44IQZiD2IYAzon+Wk3mJ+mliJQff4O5hukhZw/fUjAYijZZ7+wACcuDx61jWQf7l/PQWL98MaOzTqFiPeQTS2DgBOKpW1d5eOB/L/uqXf oXkdVZJvt0rpBf7rAovlwKVQ6fWujDZdQNZu/H3rVV2+q9MhTI2S31erB19e2DkcXPzBz0GOYPqoregwakDER3YhmMyF6MII285c8KE0Ke2wSmDuk+2wLvRS f5XPZt396bCbfzM4QZs3Cy0JJP7Rk2775pUX0/wovys3Q2B9MVaidiyBDYotAsmYJghgsjwbV9htsjZ8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Vitaly Kuznetsov Add tracepoint to vmbus_on_message() which is called when we start processing a blocking from work context. Signed-off-by: Vitaly Kuznetsov Signed-off-by: K. Y. Srinivasan --- drivers/hv/channel_mgmt.c | 2 ++ drivers/hv/hv_trace.h | 5 +++++ 2 files changed, 7 insertions(+) diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index a8dc9a164631..71d4d68488d4 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -1176,6 +1176,8 @@ void vmbus_onmessage(void *context) hdr = (struct vmbus_channel_message_header *)msg->u.payload; size = msg->header.payload_size; + trace_vmbus_on_message(hdr); + if (hdr->msgtype >= CHANNELMSG_COUNT) { pr_err("Received invalid channel message type %d size %d\n", hdr->msgtype, size); diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h index 9c2772922c76..d432aba5df8a 100644 --- a/drivers/hv/hv_trace.h +++ b/drivers/hv/hv_trace.h @@ -19,6 +19,11 @@ DEFINE_EVENT(vmbus_hdr_msg, vmbus_on_msg_dpc, TP_ARGS(hdr) ); +DEFINE_EVENT(vmbus_hdr_msg, vmbus_on_message, + TP_PROTO(const struct vmbus_channel_message_header *hdr), + TP_ARGS(hdr) +); + #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . #undef TRACE_INCLUDE_FILE -- 2.14.1