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From: Ming Lei <ming.lei@redhat.com>
To: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
	"Martin K . Petersen" <martin.petersen@oracle.com>
Cc: linux-block@vger.kernel.org, linux-nvme@lists.infradead.org,
	linux-scsi@vger.kernel.org, Ming Lei <ming.lei@redhat.com>
Subject: [PATCH V2 09/13] scsi: force unfreezing queue into atomic mode
Date: Sat, 22 Jan 2022 19:10:50 +0800	[thread overview]
Message-ID: <20220122111054.1126146-10-ming.lei@redhat.com> (raw)
In-Reply-To: <20220122111054.1126146-1-ming.lei@redhat.com>

In scsi_disk_release() request queue is frozen for clearing
disk->private_data, and there can't be any FS IO issued to
this queue, and only private passthrough request will be handled, so
force unfreezing queue into atomic mode.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
 drivers/scsi/sd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 0e73c3f2f381..27f04c860f00 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3670,7 +3670,7 @@ static void scsi_disk_release(struct device *dev)
 	 * in case multiple processes open a /dev/sd... node concurrently.
 	 */
 	blk_mq_freeze_queue(q);
-	blk_mq_unfreeze_queue(q);
+	__blk_mq_unfreeze_queue(q, true);
 
 	disk->private_data = NULL;
 	put_disk(disk);
-- 
2.31.1


  parent reply	other threads:[~2022-01-22 11:12 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-22 11:10 [PATCH V2 00/13] block: don't drain file system I/O on del_gendisk Ming Lei
2022-01-22 11:10 ` [PATCH V2 01/13] block: declare blkcg_[init|exit]_queue in private header Ming Lei
2022-01-24 12:59   ` Christoph Hellwig
2022-01-22 11:10 ` [PATCH V2 02/13] block: move initialization of q->blkg_list into blkcg_init_queue Ming Lei
2022-01-24 13:00   ` Christoph Hellwig
2022-01-24 18:32   ` Bart Van Assche
2022-01-22 11:10 ` [PATCH V2 03/13] block: move blkcg initialization/destroy into disk allocation/release handler Ming Lei
2022-01-24 13:02   ` Christoph Hellwig
2022-01-22 11:10 ` [PATCH V2 04/13] block/wbt: fix negative inflight counter when remove scsi device Ming Lei
2022-02-17  7:45   ` Christoph Hellwig
2022-02-17 14:53     ` Jens Axboe
2022-01-22 11:10 ` [PATCH V2 05/13] block: only account passthrough IO from userspace Ming Lei
2022-01-24 13:05   ` Christoph Hellwig
2022-01-24 23:09     ` Ming Lei
2022-01-25  6:16       ` Christoph Hellwig
2022-01-25  7:19         ` Christoph Hellwig
2022-01-25  8:35           ` Ming Lei
2022-01-25  9:09           ` Ming Lei
2022-01-26  5:50             ` Christoph Hellwig
2022-01-26  7:21               ` Ming Lei
2022-01-26  8:10                 ` Christoph Hellwig
2022-01-26  8:33                   ` Ming Lei
2022-01-26  8:49                     ` Christoph Hellwig
2022-01-26  9:59                       ` Ming Lei
2022-01-26 16:37                         ` Christoph Hellwig
2022-01-22 11:10 ` [PATCH V2 06/13] block: don't remove hctx debugfs dir from blk_mq_exit_queue Ming Lei
2022-01-24 13:06   ` Christoph Hellwig
2022-01-22 11:10 ` [PATCH V2 07/13] block: move q_usage_counter release into blk_queue_release Ming Lei
2022-01-24 13:09   ` Christoph Hellwig
2022-01-24 19:06   ` Bart Van Assche
2022-01-22 11:10 ` [PATCH V2 08/13] block: export __blk_mq_unfreeze_queue Ming Lei
2022-01-24 13:11   ` Christoph Hellwig
2022-01-22 11:10 ` Ming Lei [this message]
2022-01-24 13:15   ` [PATCH V2 09/13] scsi: force unfreezing queue into atomic mode Christoph Hellwig
2022-01-24 23:21     ` Ming Lei
2022-01-25  7:27       ` Christoph Hellwig
2022-01-25  8:54         ` Ming Lei
2022-01-26  8:15           ` Christoph Hellwig
2022-01-22 11:10 ` [PATCH V2 10/13] block: add helper of disk_release_queue for release queue data for disk Ming Lei
2022-01-24 13:16   ` Christoph Hellwig
2022-01-24 23:27     ` Ming Lei
2022-01-25  6:17       ` Christoph Hellwig
2022-01-22 11:10 ` [PATCH V2 11/13] block: move blk_exit_queue into disk_release Ming Lei
2022-01-24 13:22   ` Christoph Hellwig
2022-01-24 23:38     ` Ming Lei
2022-01-22 11:10 ` [PATCH V2 12/13] block: move rq_qos_exit() into disk_release() Ming Lei
2022-01-24 13:28   ` Christoph Hellwig
2022-01-22 11:10 ` [PATCH V2 13/13] block: don't drain file system I/O on del_gendisk Ming Lei
2022-01-24 13:39   ` Christoph Hellwig

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