From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca by simark.ca with LMTP id l+dVO+3yZmJ6hAIAWB0awg (envelope-from ) for ; Mon, 25 Apr 2022 15:13:49 -0400 Received: by simark.ca (Postfix, from userid 112) id E52441E058; Mon, 25 Apr 2022 15:13:49 -0400 (EDT) Authentication-Results: simark.ca; dkim=pass (2048-bit key; unprotected) header.d=lists.lttng.org header.i=@lists.lttng.org header.a=rsa-sha256 header.s=default header.b=eQb9pmWN; dkim-atps=neutral X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on simark.ca X-Spam-Level: X-Spam-Status: No, score=-3.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 Received: from lists.lttng.org (lists.lttng.org [167.114.26.123]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by simark.ca (Postfix) with ESMTPS id 828B61E00E for ; Mon, 25 Apr 2022 15:13:48 -0400 (EDT) Received: from lists-lttng01.efficios.com (localhost [IPv6:::1]) by lists.lttng.org (Postfix) with ESMTP id 4KnF6g6k5zzD9t; Mon, 25 Apr 2022 15:13:47 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=lists.lttng.org; s=default; t=1650914028; bh=eyf4zx36/FD37iYxb1ziUww2zU/9qGVPmcOdaNFLT7Y=; h=Date:To:In-Reply-To:References:Subject:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=eQb9pmWNeWuKwuK76YgU1NynvA9SUs25JJtr44QvjeeGaSzA/6tYFDxwiygIuczNb zLRW5lU9v0gqQ385KclOSleqrtsCi17HvpkSvjJiJdXDfjHeE9Aqp5mNsHPGE/O0QF pVS5mZk7dgNvaljKCNXNQBNpfHbZPkHvUhCDG3bHhBVAriv1X+61N7yeZzKWnOOpcR bxDoAmGd3M5CQxXLaimD5ymHJodrYo2y3Je/oviHTtApxSo8bf9Sy3P8EF6TCwmMND u1NBFjOZRpf6gybYwMHy9UyXu3kfDwWUegAf2paZLU8Ndg9ctxUelM0czvLqkRjlkV Ijd7EQcoBfSzg== Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lists.lttng.org (Postfix) with ESMTPS id 4KnF6g4GQnzD2M for ; Mon, 25 Apr 2022 15:13:45 -0400 (EDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 6BDCC6170D; Mon, 25 Apr 2022 19:13:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 22CE2C385A4; Mon, 25 Apr 2022 19:13:38 +0000 (UTC) Date: Mon, 25 Apr 2022 15:13:36 -0400 To: Mathieu Desnoyers Message-ID: <20220425151336.21e492b5@gandalf.local.home> In-Reply-To: <892959086.34940.1650902572304.JavaMail.zimbra@efficios.com> References: <1218866473.10909.1649432186473.JavaMail.zimbra@efficios.com> <3c11308e-006a-a7e9-8482-c6b341690530@redhat.com> <1622857974.11247.1649441213797.JavaMail.zimbra@efficios.com> <20220425100434.2f5d18bb@gandalf.local.home> <892959086.34940.1650902572304.JavaMail.zimbra@efficios.com> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Subject: Re: [lttng-dev] Unexport of kvm_x86_ops vs tracer modules X-BeenThere: lttng-dev@lists.lttng.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: LTTng development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Steven Rostedt via lttng-dev Reply-To: Steven Rostedt Cc: Paolo Bonzini , lttng-dev , KVM list , Sean Christopherson Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: lttng-dev-bounces@lists.lttng.org Sender: "lttng-dev" On Mon, 25 Apr 2022 12:02:52 -0400 (EDT) Mathieu Desnoyers wrote: > If the fast assign can then be used on a field-per-field basis, maybe this > could work, but AFAIK the fast-assign macro is open-coded C, which makes this > not straightforward. Yeah, that's not going to be feasible, without changing all 1000's of events. > > If it's a all-or-nothing approach where the fast-assign needs to serialize all > fields, this would require that lttng copies the data into a temporary area, > which is something I want to avoid for filtering and event notification per-field > payload capture purposes. Right. Not sure how to fix this then. -- Steve _______________________________________________ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev