From nobody Fri Apr 26 09:45:33 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1659687818; cv=none; d=zohomail.com; s=zohoarc; b=DsX+7BsGYps8IpIOl7bihyZG+pS9fdxhXOOGT345McetwYhGW6zGTNoCt0vpanvPGCiYibjgYExImyE+RWu5Jy9e5/5FiyS31DHJZouErSrpdSpn/rSCEzGM3yczd9Ys6NRw8iRfks1mVvduSJOg8PpnEH8GLMFbl6PGwolP5QI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1659687818; 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; bh=0bfoHoSanZtQiV7SoIqqkoxtM2o34+5XyFcXpFu8r9A=; b=gdxTTk8Q8PJr4felx0fxIrK17DKBtJr0egjig1r8MEUGA66Ae8sVA14AFhZ+4IAp9JpwVA0dOAY5nxFP07CpTFU5XqsCIqS9JJGLBtjGKYURpekIkUYTO8f8HeaBAd/yKjUCJPLsbpXA4rtxRnur9hBrIG36XK/xoaEmdZF2U/A= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1659687818863432.1459700259393; Fri, 5 Aug 2022 01:23:38 -0700 (PDT) Received: from localhost ([::1]:46778 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oJscL-0006Lz-R8 for importer@patchew.org; Fri, 05 Aug 2022 04:23:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60528) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oJsE6-0003NV-Cv; Fri, 05 Aug 2022 03:58:34 -0400 Received: from mail-pf1-x433.google.com ([2607:f8b0:4864:20::433]:44974) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oJsE4-0001yZ-Oz; Fri, 05 Aug 2022 03:58:34 -0400 Received: by mail-pf1-x433.google.com with SMTP id h28so1581963pfq.11; Fri, 05 Aug 2022 00:58:32 -0700 (PDT) Received: from roots.. ([106.84.130.246]) by smtp.gmail.com with ESMTPSA id z15-20020a170903018f00b0016ee708350bsm2418564plg.14.2022.08.05.00.58.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Aug 2022 00:58:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc; bh=0bfoHoSanZtQiV7SoIqqkoxtM2o34+5XyFcXpFu8r9A=; b=fUQFgtGURTl0NzcoP52VBrgAdjzGTrIWl/s4qAGC3+HU4JmAZTZ0lvk7QhH3sKTK5W uBRQ61rfmX0u5qapnwM1E1a87W6iLtpHohNUdsep2CiE5Mx8qR+YRv0zuhxzOqrNAKm+ wTj4vKuVRoenYTI4eUb0COmzkWQgDHzg+iJHiXIArmkAM8KgUz5DNrNmjq19VzKyyb8B bc3veWlZLE5cmRgsDOhl6eR+XLXDbds3bKtWW0JvtL2uRtwdIr1dWAOetHNDqYVkRMZM gPE9P/l1qwIEF9QCb/7lXKI1/GhHlV9akPHHHv5kZY5ipCoQoCJ9tVvDx7pcUkxV5GGV MivA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc; bh=0bfoHoSanZtQiV7SoIqqkoxtM2o34+5XyFcXpFu8r9A=; b=7TBEJCtIB0nuVyTvQ+ekvAI/FL7atcMO8PLxD1Xd5XZRxIwpRONLNO80Rt3jOwCKyk ajbTzdIiH7bqxLbwB50sGxf840M5gVAqZKpylmZDaScm/ikP1vKpbPJ3WSakcm4q28md j6Y6aXvNJibptUBDYdjo40VDXXjsxjBZ0FuZG8jLoRwQV2uAtzxMo2beGCm7IrtwOZEp tyfP5C6q4aaOtR4yGY0LZWVJ9x/gF2pkyuM1BBcdhRfXOJk76iOALqYvZ1TS7s6lqAKT utk7G2xP2pv/rGhVT8pCiJKwQsUkc2y/yi+A+0hAwyqLTWTtedwUFKTURJNEt38+hGFr jDUw== X-Gm-Message-State: ACgBeo1D82pdF17lNl7dgY1ZHvGYahCl5reReGWEL9jxKkB5WUuCoRvH GdOi4pND2qxbigaEZWygGit8XvPzo9SUOQ== X-Google-Smtp-Source: AA6agR7XMF5JA0sSkKJEw7j2RVggNf8mylJs4pkxPCkgWSypzTjJForxO82WbpmlX6a/7To4OBmJNQ== X-Received: by 2002:a05:6a00:1641:b0:52d:3dde:73c5 with SMTP id m1-20020a056a00164100b0052d3dde73c5mr5535112pfc.24.1659686310905; Fri, 05 Aug 2022 00:58:30 -0700 (PDT) From: Sam Li To: qemu-devel@nongnu.org Cc: qemu-block@nongnu.org, hare@suse.de, Stefan Hajnoczi , dmitry.fomichev@wdc.com, Kevin Wolf , damien.lemoal@opensource.wdc.com, Eric Blake , Fam Zheng , Markus Armbruster , Hanna Reitz , Sam Li Subject: [PATCH v6 6/8] config: add check to block layer Date: Fri, 5 Aug 2022 15:57:49 +0800 Message-Id: <20220805075751.77499-7-faithilikerun@gmail.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220805075751.77499-1-faithilikerun@gmail.com> References: <20220805075751.77499-1-faithilikerun@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.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; Received-SPF: pass client-ip=2607:f8b0:4864:20::433; envelope-from=faithilikerun@gmail.com; helo=mail-pf1-x433.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1659687819540100001 Content-Type: text/plain; charset="utf-8" Putting zoned/non-zoned BlockDrivers on top of each other is not allowed. Signed-off-by: Sam Li Reviewed-by: Stefan Hajnoczi --- block.c | 13 +++++++++++++ block/file-posix.c | 1 + block/raw-format.c | 1 + include/block/block_int-common.h | 10 ++++++++++ 4 files changed, 25 insertions(+) diff --git a/block.c b/block.c index bc85f46eed..8a259b158c 100644 --- a/block.c +++ b/block.c @@ -7947,6 +7947,19 @@ void bdrv_add_child(BlockDriverState *parent_bs, Blo= ckDriverState *child_bs, return; } =20 + /* + * Non-zoned block drivers do not follow zoned storage constraints + * (i.e. sequential writes to zones). Refuse mixing zoned and non-zoned + * drivers in a graph. + */ + if (!parent_bs->drv->supports_zoned_children && child_bs->drv->is_zone= d) { + error_setg(errp, "Cannot add a %s child to a %s parent", + child_bs->drv->is_zoned ? "zoned" : "non-zoned", + parent_bs->drv->supports_zoned_children ? + "support zoned children" : "not support zoned children"= ); + return; + } + if (!QLIST_EMPTY(&child_bs->parents)) { error_setg(errp, "The node %s already has a parent", child_bs->node_name); diff --git a/block/file-posix.c b/block/file-posix.c index 2627431581..7ab39eb291 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -4048,6 +4048,7 @@ static BlockDriver bdrv_zoned_host_device =3D { .format_name =3D "zoned_host_device", .protocol_name =3D "zoned_host_device", .instance_size =3D sizeof(BDRVRawState), + .is_zoned =3D true, .bdrv_needs_filename =3D true, .bdrv_probe_device =3D hdev_probe_device, .bdrv_parse_filename =3D zoned_host_device_parse_filename, diff --git a/block/raw-format.c b/block/raw-format.c index 6b20bd22ef..9441536819 100644 --- a/block/raw-format.c +++ b/block/raw-format.c @@ -614,6 +614,7 @@ static void raw_child_perm(BlockDriverState *bs, BdrvCh= ild *c, BlockDriver bdrv_raw =3D { .format_name =3D "raw", .instance_size =3D sizeof(BDRVRawState), + .supports_zoned_children =3D true, .bdrv_probe =3D &raw_probe, .bdrv_reopen_prepare =3D &raw_reopen_prepare, .bdrv_reopen_commit =3D &raw_reopen_commit, diff --git a/include/block/block_int-common.h b/include/block/block_int-com= mon.h index de44c7b6f4..0476cd0491 100644 --- a/include/block/block_int-common.h +++ b/include/block/block_int-common.h @@ -126,6 +126,16 @@ struct BlockDriver { */ bool is_format; =20 + /* + * Set to true if the BlockDriver is a zoned block driver. + */ + bool is_zoned; + + /* + * Set to true if the BlockDriver supports zoned children. + */ + bool supports_zoned_children; + /* * Drivers not implementing bdrv_parse_filename nor bdrv_open should h= ave * this field set to true, except ones that are defined only by their --=20 2.37.1