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From: "Heyne, Maximilian" <mheyne@amazon.de>
To: "stable@vger.kernel.org" <stable@vger.kernel.org>
Cc: "Heyne, Maximilian" <mheyne@amazon.de>,
	Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>,
	Chaitanya Kulkarni <kch@nvidia.com>,
	"Keith Busch" <kbusch@kernel.org>, Jens Axboe <axboe@kernel.dk>,
	Hector Martin <marcan@marcan.st>, Sven Peter <sven@svenpeter.dev>,
	Alyssa Rosenzweig <alyssa@rosenzweig.io>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Alim Akhtar <alim.akhtar@samsung.com>,
	Avri Altman <avri.altman@wdc.com>,
	Bart Van Assche <bvanassche@acm.org>,
	Sasha Levin <sashal@kernel.org>,
	Peter Wang <peter.wang@mediatek.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Bean Huo <beanhuo@micron.com>, Brian Kao <powenkao@google.com>,
	Seunghui Lee <sh043.lee@samsung.com>,
	Sanjeev Yadav <sanjeev.y@mediatek.com>,
	Wonkon Kim <wkon.kim@samsung.com>, Ming Lei <ming.lei@redhat.com>,
	Hannes Reinecke <hare@suse.de>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"asahi@lists.linux.dev" <asahi@lists.linux.dev>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
	"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>
Subject: [PATCH 6.1.y 3/8] scsi: remove an extra queue reference
Date: Wed, 1 Apr 2026 13:37:00 +0000	[thread overview]
Message-ID: <20260401-blobs-hurry-1dd1b23c@mheyne-amazon> (raw)
In-Reply-To: <20260401-defer-gleam-5226cb65@mheyne-amazon>

From: Christoph Hellwig <hch@lst.de>

[ Upstream commit dc917c361422388f0d39d3f0dc2bc5a188c01156 ]

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>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/r/20221018135720.670094-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Maximilian Heyne <mheyne@amazon.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 696f178fb57d8..0eaec372f7560 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 af81b2ba0c9b3..456b92c3a7811 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1486,7 +1486,6 @@ 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);
 
-- 
2.50.1




Amazon Web Services Development Center Germany GmbH
Tamara-Danz-Str. 13
10243 Berlin
Geschaeftsfuehrung: Christof Hellmis, Andreas Stieger
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Ust-ID: DE 365 538 597



  parent reply	other threads:[~2026-04-01 13:37 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-01 13:36 [PATCH 6.1.y 0/8] nvme: correctly fix admin request_queue lifetime Heyne, Maximilian
2026-04-01 13:36 ` [PATCH 6.1.y 1/8] Revert "nvme: fix admin request_queue lifetime" Heyne, Maximilian
2026-04-01 13:36 ` [PATCH 6.1.y 2/8] blk-mq: move the call to blk_put_queue out of blk_mq_destroy_queue Heyne, Maximilian
2026-04-01 13:37 ` Heyne, Maximilian [this message]
2026-04-01 13:37 ` [PATCH 6.1.y 4/8] nvme-pci: remove an extra queue reference Heyne, Maximilian
2026-04-01 13:37 ` [PATCH 6.1.y 5/8] nvme-apple: " Heyne, Maximilian
2026-04-01 20:45   ` Fedor Pchelkin
2026-04-02 12:31     ` Heyne, Maximilian
2026-04-03  9:35       ` Fedor Pchelkin
2026-04-01 13:37 ` [PATCH 6.1.y 6/8] nvme-pci: put the admin queue in nvme_dev_remove_admin Heyne, Maximilian
2026-04-01 13:37 ` [PATCH 6.1.y 7/8] nvme: fix admin request_queue lifetime Heyne, Maximilian
2026-04-01 13:37 ` [PATCH 6.1.y 8/8] nvme: fix admin queue leak on controller reset Heyne, Maximilian

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