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([112.44.203.212]) by smtp.gmail.com with ESMTPSA id l12-20020a170902f68c00b00178323e689fsm5372740plg.171.2022.10.09.19.21.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 09 Oct 2022 19:22:02 -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:subject:date :message-id:reply-to; bh=mhtI1h8pCcI8Jw0NrKOs5Qx0fV6LmR6axseaT+0RKJ8=; b=Yn+mU73XrYTjt1RAAp52MaIYIk0ICEAVXNULK7P3s8+aLdlX+fpY5MFBxZCqxOPRnG 2s2T8ekHekGwZiVnI+U/mNXuRt8q1Z9WWs4lWIjySjtOZ64iNHmun4neALybgW8NHhxL 3V2MKWOt6BMLPUPOpUvd1k+qdp2sZ21VCIDFtoWhjpCVK+1VdYklfsrh4K645kRfpN1O jw5zf8pV7/RC97Us167DAgovuEPqLlvfmq9gVFnKdRUEEfkLtegZmMcTDj/wb4i3ZoWx r37Ud73HjF1e1iv2YUbv+UrUQfjydWR8iChOVZvq0rIx9X1dIYLaLIrXSwq6qIdcvbTW qjAg== 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=mhtI1h8pCcI8Jw0NrKOs5Qx0fV6LmR6axseaT+0RKJ8=; b=0SB0C/3ERd3QVKTdt85DNffSSktaYDWsRlDfQ151FFd+td9xxlKMuMqLApAWxFJ8JF 9Wn++vJRTSm6bCPYtaSOj/Su7qRdjgN1QP98ayX39lD7MZgFZYqAH89wTBuA+575cX32 GxZCcMQCHLkoglZuJESyC5CLc7iSQgKIqhrkq00qYCf2v+1B4UVThQ/k0nTUVmlkSWTN nT6tCGUcOPbhweZiW0LuMwcOEgZ/9gPxSbsaDFW+MxLRk56gJWshteLsr9xJ4TOlSdLh ntxmbTn0kUNoh0+y0/Jrz3BYL2/lPGUdCJO8Vd7Yc7btVoCzn8ykfKhT43Ph+SlcL0m/ z+UA== X-Gm-Message-State: ACrzQf0sUJNoURMpsTSe2Mlm2tUeQrZBvkRZIxhChUx3jbj7a3F+gZzf uaUtThYiWZ1VeBs8WuCacCrHyMKGkzh8mCYaLT4= X-Google-Smtp-Source: AMsMyM46a9AcOjqlDJkkuV/TGTWuSIG7U+RbHj3gdR8rGR7aw5FiSarr9mK9PBLFWcJaJe0j89WjcA== X-Received: by 2002:a05:6a00:3392:b0:547:f861:1fad with SMTP id cm18-20020a056a00339200b00547f8611fadmr17464344pfb.16.1665368522858; Sun, 09 Oct 2022 19:22:02 -0700 (PDT) From: Sam Li To: qemu-devel@nongnu.org Cc: Eric Blake , Markus Armbruster , dmitry.fomichev@wdc.com, Stefan Hajnoczi , Fam Zheng , qemu-block@nongnu.org, Kevin Wolf , Hanna Reitz , hare@suse.de, damien.lemoal@opensource.wdc.com, Sam Li Subject: [PATCH v11 5/7] config: add check to block layer Date: Mon, 10 Oct 2022 10:21:14 +0800 Message-Id: <20221010022116.41942-6-faithilikerun@gmail.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20221010022116.41942-1-faithilikerun@gmail.com> References: <20221010022116.41942-1-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::429; envelope-from=faithilikerun@gmail.com; helo=mail-pf1-x429.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" X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1665368881270100001 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 --- block.c | 17 +++++++++++++++++ block/file-posix.c | 13 +++++++++++++ block/raw-format.c | 1 + include/block/block_int-common.h | 5 +++++ 4 files changed, 36 insertions(+) mode change 100644 =3D> 100755 block.c mode change 100644 =3D> 100755 block/file-posix.c diff --git a/block.c b/block.c old mode 100644 new mode 100755 index bc85f46eed..bf2f2918e7 --- a/block.c +++ b/block.c @@ -7947,6 +7947,23 @@ 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 && + /* 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. */ + child_bs->bl.zoned =3D=3D BLK_Z_HM) { + 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 old mode 100644 new mode 100755 index 226f5d48f5..a9d347292e --- a/block/file-posix.c +++ b/block/file-posix.c @@ -778,6 +778,19 @@ 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) { + if (!(s->open_flags & O_DIRECT)) { + error_setg(errp, "driver=3Dzoned_host_device was specified, bu= t it " + "requires cache.direct=3Don, which was not sp= ecified."); + return -EINVAL; /* No host kernel page cache */ + } + } +#endif =20 if (S_ISBLK(st.st_mode)) { #ifdef BLKDISCARDZEROES diff --git a/block/raw-format.c b/block/raw-format.c index 618c6b1ec2..b885688434 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 cdc06e77a6..37dddc603c 100644 --- a/include/block/block_int-common.h +++ b/include/block/block_int-common.h @@ -127,6 +127,11 @@ 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 2.37.3