From nobody Tue Feb 10 05:46:11 2026 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=1674988292; cv=none; d=zohomail.com; s=zohoarc; b=nWdg4zYxvLYsW7dg5mUITD7EqgfsKaaJXavpq29W9Q10SDFUAPq31P6cIsp9La/pwNyHDO9oklx7WaG6UZDH7/Tre+ueHSlLJxl9xIiKNc4rbUp9GbnUPhal9KuLJV4IRowclIjly8DaZHvgB6Dud5/36RcjsHwWCJLQ4T9DHdk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1674988292; 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=7kn/ee/b4uHSDw62GF6lj1ZLODdyoKPhXIYeoKCX5EM=; b=MxnOEjjw4SDrQ2rERYPfNib2+DyFkDzeWtSfUDb5PWg/OQ6Cp+4djUjJ1f5ODGmjVw4NSB2CySc/qzxMMMEk06LWf3v46g6mGupIrS37dRPRswtxZPNsNGmaQpEC7zU8dbzvD3RoODK0/LBMwKj/8mP0jXqYngO27+b7LWtqODQ= 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 1674988292542304.74235928955227; Sun, 29 Jan 2023 02:31:32 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pM4wT-0005Nx-AS; Sun, 29 Jan 2023 05:29:45 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pM4wE-0005Jz-Lx; Sun, 29 Jan 2023 05:29:30 -0500 Received: from mail-pj1-x1036.google.com ([2607:f8b0:4864:20::1036]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pM4wD-0007C2-20; Sun, 29 Jan 2023 05:29:30 -0500 Received: by mail-pj1-x1036.google.com with SMTP id o13so8658417pjg.2; Sun, 29 Jan 2023 02:29:28 -0800 (PST) Received: from fedlinux.. ([106.84.129.237]) by smtp.gmail.com with ESMTPSA id jl1-20020a170903134100b0019644d4242dsm5439416plb.82.2023.01.29.02.29.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 29 Jan 2023 02:29:26 -0800 (PST) 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:subject:date :message-id:reply-to; bh=7kn/ee/b4uHSDw62GF6lj1ZLODdyoKPhXIYeoKCX5EM=; b=jclzbM+nwHQ15H8xsHycPPwwRdEeWtwk6t9zqEKiOV3cRpRc/1czj4FG/LhZ2W5u6h 0vuCIKbCsGzdztyy13diqUfm2KaluVTbm4s6iaXfKXo2kX0r5Xx7mPFRz6yVM3uLkjnh M0RH7HccSvqPT9sMlCt3K8tSxaVqpiK+Fr1Qk6VbTtJPIvrJWqKUeLsiB7GuUxaP1N5z NXtBJ/DQWNTCL9ZisRO1XKaWH+j+dLpfGwLE4kMTQTe2FBtgJUrn06dA+0tqww+GRxZ0 Di917zBOJg0vKJdeGo1IraeLBUZkQ3FOf6oDxqf3w143+VBGRNfq8se1w2NxEgNmHWE5 comw== 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 :subject:date:message-id:reply-to; bh=7kn/ee/b4uHSDw62GF6lj1ZLODdyoKPhXIYeoKCX5EM=; b=pMT+9tdUWPxy8YiE2HxPt1GbFbYP+z+7o8n9emRycG9Jpemdjrq+fWuaLROhnBfLix yQavhOBo5SSjcHuVdyJaidK23qeuj35XBI+sZs/clHKUOdvtGeYHUP6svm0kp8Sp7KZQ 0kEOC67h5CK22DmMMCuhpPABs5KFtuHIJwMn8sHtpGuQfml9j09YvooHnGYFaEYx9a/H zZH2ETHwjZDwy+OPYmuU8pUhy02nZAkFY55MR6mTafvMtlNWgAZIGbwJQvTwcn49SiI/ PBpV/3djzM6kJvNpf04ch8X1AwYesKydyfqPr91ShPWaye/7J0eGKSE6BGA7n2tC0V3r Dj6w== X-Gm-Message-State: AFqh2kqA+sggsBHtwDhP5ehN1ss7sxlfreLLXRkBVrBcelGb8Mgu+xhi V+LPcVVSGy1h1GTn5zK8azKKhSLaeccV8hMm3WM= X-Google-Smtp-Source: AMrXdXtRMTJyhT/uuOPG1VfRoI8dWUKySrMbXJuJU1eUexhborIWfN2YmuMRlm1X1V+y5ydppsmUrw== X-Received: by 2002:a17:902:d2cd:b0:195:e457:341a with SMTP id n13-20020a170902d2cd00b00195e457341amr44338142plc.4.1674988166795; Sun, 29 Jan 2023 02:29:26 -0800 (PST) From: Sam Li To: qemu-devel@nongnu.org Cc: qemu-block@nongnu.org, Stefan Hajnoczi , Kevin Wolf , Paolo Bonzini , Hanna Reitz , dmitry.fomichev@wdc.com, hare@suse.de, damien.lemoal@opensource.wdc.com, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Fam Zheng , Thomas Huth , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Sam Li Subject: [PATCH v15 5/8] config: add check to block layer Date: Sun, 29 Jan 2023 18:28:47 +0800 Message-Id: <20230129102850.84731-6-faithilikerun@gmail.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230129102850.84731-1-faithilikerun@gmail.com> References: <20230129102850.84731-1-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::1036; envelope-from=faithilikerun@gmail.com; helo=mail-pj1-x1036.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 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-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1674988292814100001 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 Reviewed-by: Hannes Reinecke Reviewed-by: Dmitry Fomichev --- block.c | 19 +++++++++++++++++++ block/file-posix.c | 12 ++++++++++++ block/raw-format.c | 1 + include/block/block_int-common.h | 5 +++++ 4 files changed, 37 insertions(+) diff --git a/block.c b/block.c index b4a89207ad..5ab0b26510 100644 --- a/block.c +++ b/block.c @@ -7913,6 +7913,25 @@ 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->bl.zoned =3D=3D BLK_Z_HM) { + /* + * The host-aware model allows zoned storage constraints and random + * write. Allow mixing host-aware and non-zoned drivers. Using + * host-aware device as a regular device. + */ + error_setg(errp, "Cannot add a %s child to a %s parent", + child_bs->bl.zoned =3D=3D BLK_Z_HM ? "zoned" : "non-zon= ed", + 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 b6d88db208..f661f202a1 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -776,6 +776,18 @@ static int raw_open_common(BlockDriverState *bs, QDict= *options, goto fail; } } +#ifdef CONFIG_BLKZONED + /* + * The kernel page cache does not reliably work for writes to SWR zones + * of zoned block device because it can not guarantee the order of wri= tes. + */ + if ((strcmp(bs->drv->format_name, "zoned_host_device") =3D=3D 0) && + (!(s->open_flags & O_DIRECT))) { + error_setg(errp, "driver=3Dzoned_host_device was specified, but it= " + "requires cache.direct=3Don, which was not specified."); + return -EINVAL; /* No host kernel page cache */ + } +#endif =20 if (S_ISBLK(st.st_mode)) { #ifdef __linux__ diff --git a/block/raw-format.c b/block/raw-format.c index dbbb8f3859..772ce777ff 100644 --- a/block/raw-format.c +++ b/block/raw-format.c @@ -618,6 +618,7 @@ 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 565228d8dd..cd631f94ed 100644 --- a/include/block/block_int-common.h +++ b/include/block/block_int-common.h @@ -137,6 +137,11 @@ struct BlockDriver { */ bool is_format; =20 + /* + * 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 2.38.1