From patchwork Fri Apr 5 04:42:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 13618504 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8177D4204F; Fri, 5 Apr 2024 04:42:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712292163; cv=none; b=eY/6OGJsHjpkpID61JmLZSMYgdyG0Oqt4uYczuoDItRJBNoc1si2t1M6Eb8hoDhy4VpVx5rwZPk/xPvtE6JAvKrv1y1nnfixCOMbIbRIzHRNVHE9MKzlQJQkRPb9qCUftM3cOJuKcpXgJHVXChnL1cDxmUcX3z0ML/Rxo39Prm0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712292163; c=relaxed/simple; bh=iziYpzXvYEHu2nCN/JikIgPE5N7UOGj+TVBZ2NBKtZo=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GuZmrfNwWTKIFkJF8siLQPyc/vHzrwY7fDzepzgqUBCuIOn0RpyxxNziuLZmw5lwEJoMqpu/BWjkiyvoW7KqgFZGWtsEg91+s1cYrGnsE1iHeYiVclLESaTBSC+LpXO1DonbXR/HwiZrw0pXKe7CA2leSNxW/XNwSkfWS8mzIWM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=g+ysEPSf; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="g+ysEPSf" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3AA7CC43390; Fri, 5 Apr 2024 04:42:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712292163; bh=iziYpzXvYEHu2nCN/JikIgPE5N7UOGj+TVBZ2NBKtZo=; h=From:To:Subject:Date:In-Reply-To:References:From; b=g+ysEPSf6P85YC1wbQxx7JcAExqRiFpzoKuE6C3lpkIx/SEc5q0as67MdGS+E03Kp u1fmnFnMI/8PrDIrD8FuCzd9WUcIPXs4/rhUJ2wvjgVegy9VZRwUQxDkvP7V4IDC4W 3fES56DjIIhciknkTGzGV4zQz9HtMgk0HD/anBzzR2EyliECRBHyiaBNNA8apgYJ11 BXuzeMWFzqohjhR45SsCwJS49kRHWkMsLfqSPdpFhIsYntReCH8ykaLTPx2kHg9DGW zqBEqHfEwJrkCRozgI2DTfFbRov2+t7mHgX+cKSSYQT0gt8b6CnELF5OU9hGe7i30n Wsm/W7ogZmm5g== From: Damien Le Moal To: linux-block@vger.kernel.org, Jens Axboe , linux-scsi@vger.kernel.org, "Martin K . Petersen" , dm-devel@lists.linux.dev, Mike Snitzer , linux-nvme@lists.infradead.org, Keith Busch , Christoph Hellwig Subject: [PATCH v6 23/28] block: Do not check zone type in blk_check_zone_append() Date: Fri, 5 Apr 2024 13:42:02 +0900 Message-ID: <20240405044207.1123462-24-dlemoal@kernel.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240405044207.1123462-1-dlemoal@kernel.org> References: <20240405044207.1123462-1-dlemoal@kernel.org> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Zone append operations are only allowed to target sequential write required zones. blk_check_zone_append() uses bio_zone_is_seq() to check this. However, this check is not necessary because: 1) For NVMe ZNS namespace devices, only sequential write required zones exist, making the zone type check useless. 2) For null_blk, the driver will fail the request anyway, thus notifying the user that a conventional zone was targeted. 3) For all other zoned devices, zone append is now emulated using zone write plugging, which checks that a zone append operation does not target a conventional zone. In preparation for the removal of zone write locking and its conventional zone bitmap (used by bio_zone_is_seq()), remove the bio_zone_is_seq() call from blk_check_zone_append(). Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Reviewed-by: Christoph Hellwig Reviewed-by: Bart Van Assche Tested-by: Hans Holmberg --- block/blk-core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index 3bf28149e104..e1a5344c2257 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -589,8 +589,7 @@ static inline blk_status_t blk_check_zone_append(struct request_queue *q, return BLK_STS_NOTSUPP; /* The bio sector must point to the start of a sequential zone */ - if (!bdev_is_zone_start(bio->bi_bdev, bio->bi_iter.bi_sector) || - !bio_zone_is_seq(bio)) + if (!bdev_is_zone_start(bio->bi_bdev, bio->bi_iter.bi_sector)) return BLK_STS_IOERR; /*