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Wed, 23 Aug 2023 10:48:58 +0000 Received: by quack3.suse.cz (Postfix, from userid 1000) id 5625FA078D; Wed, 23 Aug 2023 12:48:57 +0200 (CEST) From: Jan Kara To: Christian Brauner Cc: Jens Axboe , , , Christoph Hellwig , Jan Kara , linux-nvme@lists.infradead.org, Christoph Hellwig Subject: [PATCH 13/29] nvmet: Convert to bdev_open_by_path() Date: Wed, 23 Aug 2023 12:48:24 +0200 Message-Id: <20230823104857.11437-13-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=2146; i=jack@suse.cz; h=from:subject; bh=P3kIXEticntI8ldLR8W/RXMKkQjvvAD6UtqoFr/c9Kw=; b=owEBbQGS/pANAwAIAZydqgc/ZEDZAcsmYgBk5eP5SvEBatGZsIjgJiA6c5YnzkSHf0MP6rkeUG43 o8ebsHqJATMEAAEIAB0WIQSrWdEr1p4yirVVKBycnaoHP2RA2QUCZOXj+QAKCRCcnaoHP2RA2TUwB/ 4wcLZc14Yrt0gDhGdTJgkH8N4G8qwWxdOI88u2Lhfw2i3xYxHB4dmlkDvPGtGjq3hru2kNmml/zFpD aPXPQZSkA2xl0l5ycYbfKZ2qzVnS9dHCTaAh9XilOwY2ZOE+nPcazmIxaALS0e5vH27HAdIdVGXgfX +Ub5T4XFFXhhZeUarI3y6eUEhQwi4B9QxU0SV7K79+qmqy7HICDwIK8sJkE6uYE9ESXiqe/GE4GYFw 9G11zl4Aiw6O8tf+86EMdVp4YqdlAvfOVfDX7gDHNIAa4FpwiNqdy3Iy2XrbiBysP54gJ0Id1iFCh3 6kIb4sVIV1B9A4YMizL+G7Z/Y87xCZ X-Developer-Key: i=jack@suse.cz; a=openpgp; fpr=93C6099A142276A28BBE35D815BC833443038D8C Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230823_034902_325525_4E5DCF86 X-CRM114-Status: GOOD ( 17.08 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Convert nvmet to use bdev_open_by_path() and pass the handle around. CC: linux-nvme@lists.infradead.org Acked-by: Christoph Hellwig Signed-off-by: Jan Kara --- drivers/nvme/target/io-cmd-bdev.c | 20 +++++++++++--------- drivers/nvme/target/nvmet.h | 1 + 2 files changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c index 2733e0158585..0bf05c19d8b5 100644 --- a/drivers/nvme/target/io-cmd-bdev.c +++ b/drivers/nvme/target/io-cmd-bdev.c @@ -50,9 +50,10 @@ void nvmet_bdev_set_limits(struct block_device *bdev, struct nvme_id_ns *id) void nvmet_bdev_ns_disable(struct nvmet_ns *ns) { - if (ns->bdev) { - blkdev_put(ns->bdev, NULL); + if (ns->bdev_handle) { + bdev_release(ns->bdev_handle); ns->bdev = NULL; + ns->bdev_handle = NULL; } } @@ -84,17 +85,18 @@ int nvmet_bdev_ns_enable(struct nvmet_ns *ns) if (ns->buffered_io) return -ENOTBLK; - ns->bdev = blkdev_get_by_path(ns->device_path, - BLK_OPEN_READ | BLK_OPEN_WRITE, NULL, NULL); - if (IS_ERR(ns->bdev)) { - ret = PTR_ERR(ns->bdev); + ns->bdev_handle = bdev_open_by_path(ns->device_path, + BLK_OPEN_READ | BLK_OPEN_WRITE, NULL, NULL); + if (IS_ERR(ns->bdev_handle)) { + ret = PTR_ERR(ns->bdev_handle); if (ret != -ENOTBLK) { - pr_err("failed to open block device %s: (%ld)\n", - ns->device_path, PTR_ERR(ns->bdev)); + pr_err("failed to open block device %s: (%d)\n", + ns->device_path, ret); } - ns->bdev = NULL; + ns->bdev_handle = NULL; return ret; } + ns->bdev = ns->bdev_handle->bdev; ns->size = bdev_nr_bytes(ns->bdev); ns->blksize_shift = blksize_bits(bdev_logical_block_size(ns->bdev)); diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index 8cfd60f3b564..360e385be33b 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -58,6 +58,7 @@ struct nvmet_ns { struct percpu_ref ref; + struct bdev_handle *bdev_handle; struct block_device *bdev; struct file *file; bool readonly; -- 2.35.3