Received: by 2002:a05:6a11:4021:0:0:0:0 with SMTP id ky33csp2022317pxb; Thu, 16 Sep 2021 23:41:43 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxBCZ8mP13Yw75oU5JxJyju4QvlXarBAE12GZLHkFRyD46y0SzKIz1TH9fWta4tVqo2XQsT X-Received: by 2002:a17:906:645:: with SMTP id t5mr10657893ejb.163.1631860903734; Thu, 16 Sep 2021 23:41:43 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1631860903; cv=none; d=google.com; s=arc-20160816; b=LclQmonk+s68OcQuyI1Z50wOme5VXU0OSSIQ0Ft4edOB+VN3GbMRvVT0I0P0Wd/XD0 QNrJJiQAaqnuX/zuPUAolF5KASbo7ZcuK/QXN7NrHM0MXIV1h2dyKeBTNnCOxNAuEcs8 0KWBx6ovmz/7r68s/WmC9WAuKMF8gVPmFBvYLhHpHdLv0KG4atphaY4tXLzr7EikYQGw KSEkFs47SmRk5UcQPzEu09evF1HAnwliKpo3dwXJIFYqiTPGqPe15iVumvHhhLEVe6pt 6im78eJdWzRM61TuJijEdRHODq3YqN6xfAesib5xkwHuTnimziLCxIn0gjEl0nlTWCkU uLjw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:subject:cc:to:from:date; bh=osKFgVdXi820Oe2m5VOMi1P63sFbx40HHnGwoLo1wcI=; b=K1C6FcfULqD6byS70LEY0IkEVSt0A0GWNWqj7JsIY5jT4BUibjFtQT4ZlsLU6WUTUa 0Fd3lrWXhhDjhRq0Y9j1nTP7NAP7FjADlon6jSmOBQ6zirbz3VS8nfPZOC22Ds9KlQyK IpETtNIKDXXnzK7388KRaWDNjwvzmSEDj8T8VyTRMLi+65+TfikYsLPutjK/ATaHqdE8 WVKNMkWcGPnDWH2RR93XMKV2LX1Lr2IGlnmTgPalwd3bd3CbvRMC5ZHmYfsGQ+sFttB/ grfUyhsgsoquBtt21lYkDOfKq3RiblCTWmO+1B1xS036XzscaoGbAde7AOxT9Pxpcp2G y9ZQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id q9si5661120ejn.647.2021.09.16.23.41.19; Thu, 16 Sep 2021 23:41:43 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239213AbhIPUnW (ORCPT + 99 others); Thu, 16 Sep 2021 16:43:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:51852 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234327AbhIPUnV (ORCPT ); Thu, 16 Sep 2021 16:43:21 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 225C8604DC; Thu, 16 Sep 2021 20:42:00 +0000 (UTC) Date: Thu, 16 Sep 2021 16:41:58 -0400 From: Steven Rostedt To: Jiri Olsa Cc: bpf@vger.kernel.org, linux-kernel@vger.kernel.org, Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko Subject: Re: [PATCH 7/8] ftrace: Add multi direct modify interface Message-ID: <20210916164131.632aec22@gandalf.local.home> In-Reply-To: References: <20210831095017.412311-1-jolsa@kernel.org> <20210831095017.412311-8-jolsa@kernel.org> <20210914174134.1d8fd944@oasis.local.home> <20210915174718.77acaf8b@gandalf.local.home> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 16 Sep 2021 21:49:37 +0200 Jiri Olsa wrote: > > I'm curious to what the use case is for the multi direct modify interface > > is? > > when the trampoline is re-generated by adding or removing program, > we have same functions to trace and new trampoline to attach > Then it probably doesn't matter for the slight delay in synchronization. -- Steve