From patchwork Wed Aug 23 10:48:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kara X-Patchwork-Id: 716814 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0E232EE49B9 for ; Wed, 23 Aug 2023 10:50:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234209AbjHWKuZ (ORCPT ); Wed, 23 Aug 2023 06:50:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34038 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232494AbjHWKuG (ORCPT ); Wed, 23 Aug 2023 06:50:06 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F3519E5A; Wed, 23 Aug 2023 03:49:25 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id DD73121F46; Wed, 23 Aug 2023 10:48:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1692787738; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=xLp8wxdpKpq8KTQotrZDbbnw1nZi05RZ0xIeaAOP2x4=; b=i4MLB5+BZGRlAVIOnQNWV2KtbDqP1LLiqJk8XnLozBQIqF4hGi7oPeFBJH2l60Ho8NJGSa 38FppjxGs16pCwGz/xlaVDAcpkTn7I/iorICvcjpqttBqIEKG5T561IX5lFk2wHLktBgIt aw+PKxy0GOtQ4H23RIQ7UOWko3SI/PM= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1692787738; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=xLp8wxdpKpq8KTQotrZDbbnw1nZi05RZ0xIeaAOP2x4=; b=kUSs9Z3bn6eUI+XIoAhTpobeuWWFRDqiEp52dbKNrSXgOuxDaXisMSpHLNC6FJnimgg8cv /UadFtIImI/NKUCg== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id C35EA13592; Wed, 23 Aug 2023 10:48:58 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id eyenLxrk5WRTIAAAMHmgww (envelope-from ); Wed, 23 Aug 2023 10:48:58 +0000 Received: by quack3.suse.cz (Postfix, from userid 1000) id 60F96A078F; Wed, 23 Aug 2023 12:48:57 +0200 (CEST) From: Jan Kara To: Christian Brauner Cc: Jens Axboe , , , Christoph Hellwig , Jan Kara , target-devel@vger.kernel.org, linux-scsi@vger.kernel.org, Christoph Hellwig Subject: [PATCH 15/29] scsi: target: Convert to bdev_open_by_path() Date: Wed, 23 Aug 2023 12:48:26 +0200 Message-Id: <20230823104857.11437-15-jack@suse.cz> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230818123232.2269-1-jack@suse.cz> References: <20230818123232.2269-1-jack@suse.cz> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=5419; i=jack@suse.cz; h=from:subject; bh=6kZvIq8BZizDHY8AGnmJ3i/dK8lV3iBpu+CtF7nME7M=; b=owEBbQGS/pANAwAIAZydqgc/ZEDZAcsmYgBk5eP7oIFf66pcHWOaFjbkKBeqFiapoWsAciZgdrSG K/m0GauJATMEAAEIAB0WIQSrWdEr1p4yirVVKBycnaoHP2RA2QUCZOXj+wAKCRCcnaoHP2RA2f9CCA CDmUs+SH0RqU6uC1VVkYLvqWDeQV/uOmRnoGAWfEvQ98+vHWaRygHr9PXLFYuCT+I4H/caIfK6Chma wQAvV1jLDwita3AK8vwlMF1/7pioa1XLFQQErVXXUUW3gtIxERfB0+ew2qJEs1TGFc+nqWNEKZtUKo NyCeyCR8ViEFw9XP8kR0bi3rJ9stipaMNRm4oH2C8HZEitR09hdGB5S26BeNgZNB6C+p1W7bs340// OX9+ivxqM65EbX4frfp75G+jrdY7aOfpDaD9HTOs6G9xgkBoq/pWOMDNci9AiriBXOnJkk5dWolPcG gWBu8s0+jJkIspiGCW2u3LDKCZE4mA X-Developer-Key: i=jack@suse.cz; a=openpgp; fpr=93C6099A142276A28BBE35D815BC833443038D8C Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Convert iblock and pscsi drivers to use bdev_open_by_path() and pass the handle around. CC: target-devel@vger.kernel.org CC: linux-scsi@vger.kernel.org Acked-by: Christoph Hellwig Signed-off-by: Jan Kara Acked-by: Christian Brauner --- drivers/target/target_core_iblock.c | 19 +++++++++++-------- drivers/target/target_core_iblock.h | 1 + drivers/target/target_core_pscsi.c | 26 +++++++++++++------------- drivers/target/target_core_pscsi.h | 2 +- 4 files changed, 26 insertions(+), 22 deletions(-) diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 3d1b511ea284..3695a9f8d8a5 100644 --- a/drivers/target/target_core_iblock.c +++ b/drivers/target/target_core_iblock.c @@ -91,7 +91,8 @@ static int iblock_configure_device(struct se_device *dev) { struct iblock_dev *ib_dev = IBLOCK_DEV(dev); struct request_queue *q; - struct block_device *bd = NULL; + struct bdev_handle *bdev_handle; + struct block_device *bd; struct blk_integrity *bi; blk_mode_t mode = BLK_OPEN_READ; unsigned int max_write_zeroes_sectors; @@ -116,12 +117,14 @@ static int iblock_configure_device(struct se_device *dev) else dev->dev_flags |= DF_READ_ONLY; - bd = blkdev_get_by_path(ib_dev->ibd_udev_path, mode, ib_dev, NULL); - if (IS_ERR(bd)) { - ret = PTR_ERR(bd); + bdev_handle = bdev_open_by_path(ib_dev->ibd_udev_path, mode, ib_dev, + NULL); + if (IS_ERR(bdev_handle)) { + ret = PTR_ERR(bdev_handle); goto out_free_bioset; } - ib_dev->ibd_bd = bd; + ib_dev->ibd_bdev_handle = bdev_handle; + ib_dev->ibd_bd = bd = bdev_handle->bdev; q = bdev_get_queue(bd); @@ -177,7 +180,7 @@ static int iblock_configure_device(struct se_device *dev) return 0; out_blkdev_put: - blkdev_put(ib_dev->ibd_bd, ib_dev); + bdev_release(ib_dev->ibd_bdev_handle); out_free_bioset: bioset_exit(&ib_dev->ibd_bio_set); out: @@ -202,8 +205,8 @@ static void iblock_destroy_device(struct se_device *dev) { struct iblock_dev *ib_dev = IBLOCK_DEV(dev); - if (ib_dev->ibd_bd != NULL) - blkdev_put(ib_dev->ibd_bd, ib_dev); + if (ib_dev->ibd_bdev_handle) + bdev_release(ib_dev->ibd_bdev_handle); bioset_exit(&ib_dev->ibd_bio_set); } diff --git a/drivers/target/target_core_iblock.h b/drivers/target/target_core_iblock.h index 8c55375d2f75..683f9a55945b 100644 --- a/drivers/target/target_core_iblock.h +++ b/drivers/target/target_core_iblock.h @@ -32,6 +32,7 @@ struct iblock_dev { u32 ibd_flags; struct bio_set ibd_bio_set; struct block_device *ibd_bd; + struct bdev_handle *ibd_bdev_handle; bool ibd_readonly; struct iblock_dev_plug *ibd_plug; } ____cacheline_aligned; diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 0d4f09693ef4..41b7489d37ce 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -352,7 +352,7 @@ static int pscsi_create_type_disk(struct se_device *dev, struct scsi_device *sd) struct pscsi_hba_virt *phv = dev->se_hba->hba_ptr; struct pscsi_dev_virt *pdv = PSCSI_DEV(dev); struct Scsi_Host *sh = sd->host; - struct block_device *bd; + struct bdev_handle *bdev_handle; int ret; if (scsi_device_get(sd)) { @@ -366,18 +366,18 @@ static int pscsi_create_type_disk(struct se_device *dev, struct scsi_device *sd) * Claim exclusive struct block_device access to struct scsi_device * for TYPE_DISK and TYPE_ZBC using supplied udev_path */ - bd = blkdev_get_by_path(dev->udev_path, BLK_OPEN_WRITE | BLK_OPEN_READ, - pdv, NULL); - if (IS_ERR(bd)) { - pr_err("pSCSI: blkdev_get_by_path() failed\n"); + bdev_handle = bdev_open_by_path(dev->udev_path, + BLK_OPEN_WRITE | BLK_OPEN_READ, pdv, NULL); + if (IS_ERR(bdev_handle)) { + pr_err("pSCSI: bdev_open_by_path() failed\n"); scsi_device_put(sd); - return PTR_ERR(bd); + return PTR_ERR(bdev_handle); } - pdv->pdv_bd = bd; + pdv->pdv_bdev_handle = bdev_handle; ret = pscsi_add_device_to_list(dev, sd); if (ret) { - blkdev_put(pdv->pdv_bd, pdv); + bdev_release(bdev_handle); scsi_device_put(sd); return ret; } @@ -564,9 +564,9 @@ static void pscsi_destroy_device(struct se_device *dev) * from pscsi_create_type_disk() */ if ((sd->type == TYPE_DISK || sd->type == TYPE_ZBC) && - pdv->pdv_bd) { - blkdev_put(pdv->pdv_bd, pdv); - pdv->pdv_bd = NULL; + pdv->pdv_bdev_handle) { + bdev_release(pdv->pdv_bdev_handle); + pdv->pdv_bdev_handle = NULL; } /* * For HBA mode PHV_LLD_SCSI_HOST_NO, release the reference @@ -994,8 +994,8 @@ static sector_t pscsi_get_blocks(struct se_device *dev) { struct pscsi_dev_virt *pdv = PSCSI_DEV(dev); - if (pdv->pdv_bd) - return bdev_nr_sectors(pdv->pdv_bd); + if (pdv->pdv_bdev_handle) + return bdev_nr_sectors(pdv->pdv_bdev_handle->bdev); return 0; } diff --git a/drivers/target/target_core_pscsi.h b/drivers/target/target_core_pscsi.h index 23d9a6e340d4..b0a3ef136592 100644 --- a/drivers/target/target_core_pscsi.h +++ b/drivers/target/target_core_pscsi.h @@ -37,7 +37,7 @@ struct pscsi_dev_virt { int pdv_channel_id; int pdv_target_id; int pdv_lun_id; - struct block_device *pdv_bd; + struct bdev_handle *pdv_bdev_handle; struct scsi_device *pdv_sd; struct Scsi_Host *pdv_lld_host; } ____cacheline_aligned;