From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C88DAC2BA18 for ; Fri, 3 Apr 2020 10:13:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9E1CD20787 for ; Fri, 3 Apr 2020 10:13:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=wdc.com header.i=@wdc.com header.b="Ny3IEzwi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390560AbgDCKNL (ORCPT ); Fri, 3 Apr 2020 06:13:11 -0400 Received: from esa6.hgst.iphmx.com ([216.71.154.45]:56735 "EHLO esa6.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390514AbgDCKNI (ORCPT ); Fri, 3 Apr 2020 06:13:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1585908788; x=1617444788; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=af+TpmrNaP6opwMEPh6jKrw6Bxfh1IsevFX/PW8xfPo=; b=Ny3IEzwiLNFiL5RkCfqCbGi/R/xtPLVTtRQWBzy0/ujmLG27GVkf1w3U WaPg7gj1liQ/gVmWICFs1eD8akfNNHLHI/m9sPVUgtUcuv4Hx5HqNp3Ah E6tEreB/OWFMjclbOiAaSZlYF70OZkjn6a3A5BotS76GBOjX7nVkyBhjs jQS3PzXGz5G8kjPq+u3f8sYlCCNz5tKcvf1p3qrkAzLEKIYwRwttIVFCy UBrMPa85brI9Dq3y+I/NHRfV1AQiIXcpm+LsvIh5nroPXKVSu71uZAzpL qeAbFX1ybL0PjLzHbWNg8nMoh7NPP8ZW+c/brRy2P0ihi0LRM/qPeq9Na A==; IronPort-SDR: RGrTW+ddos814URNyM9ydqWtzQFCyBjrFHl/bBPfsEhfN5ewwXe6JgxAN0+pH+llvV22GRnowN p2n8HKsYDOLWfa49JQkRSvdmAKW4MmOVD9XD7/eE2bOTsSRhtNKMuU6ZShhiGDe2WZJjnYuIlQ jhyeypTJEVef3hl/upOjXNAOCR+POx5/MZAvNwIvQxrPkisGZZNF/lc3TwjjRF0U/FgZrB5402 VKXyMx4ho19Oeb68ZnYFMNOe3Mz7hRd0a0PgKKdnmtQmuWkHPLj71dYjZizmNTw+kZ7sn3wkPh bSc= X-IronPort-AV: E=Sophos;i="5.72,339,1580745600"; d="scan'208";a="135956020" Received: from uls-op-cesaip02.wdc.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 03 Apr 2020 18:13:07 +0800 IronPort-SDR: qe+Ll3qBR2goe2cO6oQINXjn2bjY2N5fK4U5fG/mhR0VIaRrAI12jhxwXoI8i7gYdWZLKXDyBb 0s+esHLs/WKNH7uifoGOz1MZ+NUuUWsJTFy3Ly+zDTGKn6lYFDG7rSxgNjaKyNtsd7XixPQIzG PJPeda2ZiirAcZQBI90RZm23GDrIqM/PovuB3Gl6fTRTckTbVjuEfcpvnTZH6MliVAEqn7DJkL v7/uk78qcRBu2Efw2//QkL8oJNAtQCMecjchlSNEOM96aUP4c7IXAwFa1OTRWeW/9jgQeuCFO8 lYQdo63Mf/auP1WS33ZsjuEN Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Apr 2020 03:03:56 -0700 IronPort-SDR: YMuY9yGwMiyhWHJWU8qcIjate/KDbDsNC3XHMZ/NsMWDg6HBRTOaihcLw1qV1XlcA6VkfVLN+O Nqe4lTNlcdWX/4Qk8InyV0G1PU9makfmAK6jAGh8o32vkKXAD+/JiN60kMf8fVoqzMQo4oy7Dn S0Dl/10kBjgi1SMWs6wnR33IEeUQDuloSxKjqQseOG5Deh2putNiQsq+rr9+V3gi6dbT0d7oQb eOJjVOmKto/pYAsUOJ3XlDHUIDsIgU00sdX4kojIKe5bWwBEEO2QwuiZLi4RMcXNzsxVCKE49P 2hY= WDCIronportException: Internal Received: from unknown (HELO redsun60.ssa.fujisawa.hgst.com) ([10.149.66.36]) by uls-op-cesaip02.wdc.com with ESMTP; 03 Apr 2020 03:13:03 -0700 From: Johannes Thumshirn To: Jens Axboe Cc: Christoph Hellwig , linux-block , Damien Le Moal , Keith Busch , "linux-scsi @ vger . kernel . org" , "Martin K . Petersen" , "linux-fsdevel @ vger . kernel . org" , Johannes Thumshirn , Christoph Hellwig Subject: [PATCH v4 05/10] scsi: sd_zbc: factor out sanity checks for zoned commands Date: Fri, 3 Apr 2020 19:12:45 +0900 Message-Id: <20200403101250.33245-6-johannes.thumshirn@wdc.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200403101250.33245-1-johannes.thumshirn@wdc.com> References: <20200403101250.33245-1-johannes.thumshirn@wdc.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Factor sanity checks for zoned commands from sd_zbc_setup_zone_mgmt_cmnd(). This will help with the introduction of an emulated ZONE_APPEND command. Signed-off-by: Johannes Thumshirn Reviewed-by: Christoph Hellwig --- drivers/scsi/sd_zbc.c | 36 +++++++++++++++++++++++++----------- 1 file changed, 25 insertions(+), 11 deletions(-) diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c index f45c22b09726..ee156fbf3780 100644 --- a/drivers/scsi/sd_zbc.c +++ b/drivers/scsi/sd_zbc.c @@ -209,6 +209,26 @@ int sd_zbc_report_zones(struct gendisk *disk, sector_t sector, return ret; } +static blk_status_t sd_zbc_cmnd_checks(struct scsi_cmnd *cmd) +{ + struct request *rq = cmd->request; + struct scsi_disk *sdkp = scsi_disk(rq->rq_disk); + sector_t sector = blk_rq_pos(rq); + + if (!sd_is_zoned(sdkp)) + /* Not a zoned device */ + return BLK_STS_IOERR; + + if (sdkp->device->changed) + return BLK_STS_IOERR; + + if (sector & (sd_zbc_zone_sectors(sdkp) - 1)) + /* Unaligned request */ + return BLK_STS_IOERR; + + return BLK_STS_OK; +} + /** * sd_zbc_setup_zone_mgmt_cmnd - Prepare a zone ZBC_OUT command. The operations * can be RESET WRITE POINTER, OPEN, CLOSE or FINISH. @@ -223,20 +243,14 @@ blk_status_t sd_zbc_setup_zone_mgmt_cmnd(struct scsi_cmnd *cmd, unsigned char op, bool all) { struct request *rq = cmd->request; - struct scsi_disk *sdkp = scsi_disk(rq->rq_disk); sector_t sector = blk_rq_pos(rq); + struct scsi_disk *sdkp = scsi_disk(rq->rq_disk); sector_t block = sectors_to_logical(sdkp->device, sector); + blk_status_t ret; - if (!sd_is_zoned(sdkp)) - /* Not a zoned device */ - return BLK_STS_IOERR; - - if (sdkp->device->changed) - return BLK_STS_IOERR; - - if (sector & (sd_zbc_zone_sectors(sdkp) - 1)) - /* Unaligned request */ - return BLK_STS_IOERR; + ret = sd_zbc_cmnd_checks(cmd); + if (ret != BLK_STS_OK) + return ret; cmd->cmd_len = 16; memset(cmd->cmnd, 0, cmd->cmd_len); -- 2.24.1