From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Hector Martin <marcan@marcan.st>, Sven Peter <sven@svenpeter.dev>,
Keith Busch <kbusch@kernel.org>, Sagi Grimberg <sagi@grimberg.me>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
linux-block@vger.kernel.org, linux-nvme@lists.infradead.org,
linux-scsi@vger.kernel.org
Subject: [PATCH 2/4] scsi: remove an extra queue reference
Date: Tue, 18 Oct 2022 15:57:18 +0200 [thread overview]
Message-ID: <20221018135720.670094-3-hch@lst.de> (raw)
In-Reply-To: <20221018135720.670094-1-hch@lst.de>
Now that blk_mq_destroy_queue does not release the queue reference, there
is no need for a second queue reference to be held by the scsi_device.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/scsi/scsi_scan.c | 1 -
drivers/scsi/scsi_sysfs.c | 1 -
2 files changed, 2 deletions(-)
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 5d27f5196de6f..0a95fa787fdf4 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -344,7 +344,6 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget,
sdev->request_queue = q;
q->queuedata = sdev;
__scsi_init_queue(sdev->host, q);
- WARN_ON_ONCE(!blk_get_queue(q));
depth = sdev->host->cmd_per_lun ?: 1;
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 1214c6f07bc64..c95177ca6ed26 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1478,7 +1478,6 @@ void __scsi_remove_device(struct scsi_device *sdev)
mutex_unlock(&sdev->state_mutex);
blk_mq_destroy_queue(sdev->request_queue);
- blk_put_queue(sdev->request_queue);
kref_put(&sdev->host->tagset_refcnt, scsi_mq_free_tags);
cancel_work_sync(&sdev->requeue_work);
--
2.30.2
next prev parent reply other threads:[~2022-10-18 13:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-18 13:57 don't drop the queue reference in blk_mq_destroy_queue Christoph Hellwig
2022-10-18 13:57 ` [PATCH 1/4] blk-mq: move the call to blk_put_queue out of blk_mq_destroy_queue Christoph Hellwig
2022-10-18 20:44 ` Chaitanya Kulkarni
2022-10-19 8:19 ` Sagi Grimberg
2022-10-25 14:23 ` Jens Axboe
2022-10-25 14:25 ` Jens Axboe
2022-10-18 13:57 ` Christoph Hellwig [this message]
2022-10-18 20:44 ` [PATCH 2/4] scsi: remove an extra queue reference Chaitanya Kulkarni
2022-10-19 1:16 ` Ming Lei
2022-10-19 1:23 ` Ming Lei
2022-10-19 8:19 ` Sagi Grimberg
2022-10-18 13:57 ` [PATCH 3/4] nvme-pci: " Christoph Hellwig
2022-10-18 20:44 ` Chaitanya Kulkarni
2022-10-19 8:19 ` Sagi Grimberg
2022-10-18 13:57 ` [PATCH 4/4] nvme-apple: " Christoph Hellwig
2022-10-18 17:51 ` Sven Peter
2022-10-18 20:45 ` Chaitanya Kulkarni
2022-10-19 8:19 ` Sagi Grimberg
2022-10-18 15:16 ` don't drop the queue reference in blk_mq_destroy_queue Keith Busch
2022-10-25 14:26 ` Jens Axboe
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