From patchwork Mon Mar 25 04:44:48 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: 782473 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 8AAF7181B91; Mon, 25 Mar 2024 04:45:39 +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=1711341939; cv=none; b=rEvzG2qIdk6IYnLgOI/8iZUftxMZL/ZSWW3whkOq5zHkZSSbfPjT3up2ISgSh35dD0eWD4rCp0BllyfkFpK6sPPIcIRwRi/IkAbLeioraNxklD2QbG3cKP6IKrojGxOhYVM0tq5zoLGaFPgePmMMBB6Haq6Z1Z6kZ+NEWOUizN4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711341939; c=relaxed/simple; bh=3ZvoBtiQeBGYm5zSAkkBddhfdz5kCTqejobXH5IUrKY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gqe+Q4u9Gzb14JUm+sun4cIbBqbCEawQHwhT3Sm/hb2L9xyYnKFmb7WzejPTEDqkfwMexLdVeUiKQ+bJtz6OFyeGcHgBY58pt/aye99v74/jGsYp33T7c0TTi61uc0RQ5IlN8cAaL4qVUl/6YsSXo/PIj0796VxoDoOONoT0nro= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hOwZWFfb; 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="hOwZWFfb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4A384C433C7; Mon, 25 Mar 2024 04:45:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711341939; bh=3ZvoBtiQeBGYm5zSAkkBddhfdz5kCTqejobXH5IUrKY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hOwZWFfb0BlNqR5qxznHoJ12UNjLdtdPCWX4rHkAU2SAcZzGzuXYgQDfnS9XOshZh FrXr5REHpUBEj1z08kYjOzeyAXGbAeD6qg9WCA8AGzsrfnsH2i3fY9IFvk34nHvDbQ gr0Fo55U19nET79AEjAAX6s4X4y5BxzQlS2TGCiy1CHBXIP6wz+kosCheyNnB1cr6M Gx8GxXo6q33BWZad9qBMc0cguO1NWIR98gfDweTonlN5i9Mc1dyGTQpY3hPNV/eFvG w5Ifl7h/dtmfqeYy2cKM1U156ey67JAjlmHAQGs6LXSy6i0Z2u59tkwKFUr79EHmAM jbxdmI1dfOTmw== 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 Cc: Christoph Hellwig Subject: [PATCH v2 24/28] block: Do not check zone type in blk_check_zone_append() Date: Mon, 25 Mar 2024 13:44:48 +0900 Message-ID: <20240325044452.3125418-25-dlemoal@kernel.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240325044452.3125418-1-dlemoal@kernel.org> References: <20240325044452.3125418-1-dlemoal@kernel.org> Precedence: bulk X-Mailing-List: linux-scsi@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 --- 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 c6d41e1c7a0a..64eb135c7501 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; /*