From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Kohli, Gaurav" Subject: Query: Notifier support for callback profiling Date: Fri, 19 May 2017 19:01:34 +0530 Message-ID: <8738660c-a644-6f9f-4da4-1d3349c3f9ea@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:58996 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750768AbdESNbn (ORCPT ); Fri, 19 May 2017 09:31:43 -0400 Content-Language: en-US Sender: linux-arm-msm-owner@vger.kernel.org List-Id: linux-arm-msm@vger.kernel.org To: linux-kernel@vger.kernel.o, linux-arm-msm@vger.kernel.org Hi , Can we profile driver specific notifier callback from Linux notifier. Sometimes we need to debug which callback is taking more time or where it is stuck. If kernel/notifier.c provide generic mechanism to profile callbacks that will save profiling individual callbacks. -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.