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Thu, 9 Apr 2020 06:45:37 +0000 (UTC) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-395-Z1LRJw1sM7KTtdqGTgZonA-1; Thu, 09 Apr 2020 02:45:34 -0400 X-MC-Unique: Z1LRJw1sM7KTtdqGTgZonA-1 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id BA0E6AE19; Thu, 9 Apr 2020 06:45:30 +0000 (UTC) From: Hannes Reinecke To: Mike Snitzer Date: Thu, 9 Apr 2020 08:45:26 +0200 Message-Id: <20200409064527.82992-11-hare@suse.de> In-Reply-To: <20200409064527.82992-1-hare@suse.de> References: <20200409064527.82992-1-hare@suse.de> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-MIME-Autoconverted: from quoted-printable to 8bit by lists01.pubmisc.prod.ext.phx2.redhat.com id 0396jdWn004754 X-loop: dm-devel@redhat.com Cc: Damien LeMoal , Bob Liu , dm-devel@redhat.com Subject: [dm-devel] [PATCH 10/11] dm-zoned: ignore metadata zone in dmz_alloc_zone() X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com When looking up zones in dmz_alloc_zone() we need to ignore metadata zones so as not to accidentally overwrite metadata. Signed-off-by: Hannes Reinecke Reviewed-by: Damien Le Moal --- drivers/md/dm-zoned-metadata.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c index 211dee442a01..554ff32abada 100644 --- a/drivers/md/dm-zoned-metadata.c +++ b/drivers/md/dm-zoned-metadata.c @@ -1902,7 +1902,13 @@ struct dm_zone *dmz_alloc_zone(struct dmz_metadata *zmd, unsigned long flags) zone = NULL; goto again; } + if (dmz_is_meta(zone)) { + struct dmz_dev *dev = dmz_zone_to_dev(zmd, zone); + dmz_dev_warn(dev, "Zone %u has metadata", dmz_id(zmd, zone)); + zone = NULL; + goto again; + } return zone; }