From nobody Thu Dec 18 17:50:02 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1560522595; cv=none; d=zoho.com; s=zohoarc; b=jZnL2l2O3xHs5aD8Iz6j7rirxvAlNk3bD532mumN8Z7M4l/jo/EQAMR/HuPqrNxQEzmNoNeGrGkrOSPMFak0ls5YdFRgOGNAjUDoY8dqURk8wAjdsMoyE06+Eh65Q6uIOrhIR1lP64nBZkEKGlCHNQQWPDnFHjxZgCestzywlpE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1560522595; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=sgGL+24/9zFbncPaFdFyrAMVGgdr1dp0s+yMJQ7khcI=; b=GcbWNFLpAnB83JbT3VrbD9AXhIURg8yOZEZiu7xIV6PD8NzCU9/0kwubTBiO6am9T5Dya2b4mCf4l8jMI5B/uvug8ddncBIIMMWnM2usVt/6BmiL24/lcvy4t0NPJay/3LXousFLS+gml3HyUn7Uf79iF5xPIFPQSp2KZjpLkS8= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1560522595511171.01542854523268; Fri, 14 Jun 2019 07:29:55 -0700 (PDT) Received: from localhost ([::1]:52088 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hbnDG-0003Lb-I1 for importer@patchew.org; Fri, 14 Jun 2019 10:29:54 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47006) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hbmSu-000285-Rl for qemu-devel@nongnu.org; Fri, 14 Jun 2019 09:42:02 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hbmSt-0006fC-3R for qemu-devel@nongnu.org; Fri, 14 Jun 2019 09:42:00 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60680) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hbmSf-0006ED-24; Fri, 14 Jun 2019 09:41:47 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A0FCD30BBE9C; Fri, 14 Jun 2019 13:41:10 +0000 (UTC) Received: from localhost (unknown [10.40.205.125]) by smtp.corp.redhat.com (Postfix) with ESMTPS id AA7912D26D; Fri, 14 Jun 2019 13:41:08 +0000 (UTC) From: Max Reitz To: qemu-block@nongnu.org Date: Fri, 14 Jun 2019 15:40:18 +0200 Message-Id: <20190614134021.32486-18-mreitz@redhat.com> In-Reply-To: <20190614134021.32486-1-mreitz@redhat.com> References: <20190614134021.32486-1-mreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.49]); Fri, 14 Jun 2019 13:41:10 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 17/20] blkdebug: Add "none" event X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Peter Maydell , qemu-devel@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Together with @iotypes and @sector, this can be used to trap e.g. the first read or write access to a certain sector without having to know what happens internally in the block layer, i.e. which "real" events happen right before such an access. Signed-off-by: Max Reitz Reviewed-by: Vladimir Sementsov-Ogievskiy Message-id: 20190507203508.18026-5-mreitz@redhat.com Signed-off-by: Max Reitz --- qapi/block-core.json | 4 +++- block/blkdebug.c | 2 ++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/qapi/block-core.json b/qapi/block-core.json index 34617a2c7a..60f903afa3 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -3244,6 +3244,8 @@ # # @cluster_alloc_space: an allocation of file space for a cluster (since 4= .1) # +# @none: triggers once at creation of the blkdebug node (since 4.1) +# # Since: 2.9 ## { 'enum': 'BlkdebugEvent', 'prefix': 'BLKDBG', @@ -3262,7 +3264,7 @@ 'pwritev_rmw_tail', 'pwritev_rmw_after_tail', 'pwritev', 'pwritev_zero', 'pwritev_done', 'empty_image_prepare', 'l1_shrink_write_table', 'l1_shrink_free_l2_clusters', - 'cor_write', 'cluster_alloc_space'] } + 'cor_write', 'cluster_alloc_space', 'none'] } =20 ## # @BlkdebugIOType: diff --git a/block/blkdebug.c b/block/blkdebug.c index 3f3ec11230..1663ed25af 100644 --- a/block/blkdebug.c +++ b/block/blkdebug.c @@ -491,6 +491,8 @@ static int blkdebug_open(BlockDriverState *bs, QDict *o= ptions, int flags, goto out; } =20 + bdrv_debug_event(bs, BLKDBG_NONE); + ret =3D 0; out: if (ret < 0) { --=20 2.21.0