From: Douglas Gilbert <dgilbert@interlog.com>
To: John Garry <john.g.garry@oracle.com>,
jejb@linux.ibm.com, martin.petersen@oracle.com
Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
bvanassche@acm.org
Subject: Re: [PATCH v3 04/11] scsi: scsi_debug: Protect block_unblock_all_queues() with mutex
Date: Mon, 3 Apr 2023 01:11:13 -0400 [thread overview]
Message-ID: <feafb4e6-2203-5916-f3f4-d59a4981556e@interlog.com> (raw)
In-Reply-To: <20230327074310.1862889-5-john.g.garry@oracle.com>
On 2023-03-27 03:43, John Garry wrote:
> There is no reason that calls to block_unblock_all_queues() from different
> context can't race with one another, so protect with the
> sdebug_host_list_mutex. There's no need for a more fine-grained per shost
> locking here (and we don't have a per-host lock anyway).
>
> Also simplify some touched code in sdebug_change_qdepth().
>
> Signed-off-by: John Garry <john.g.garry@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Thanks.
next prev parent reply other threads:[~2023-04-03 5:11 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-27 7:42 [PATCH v3 00/11] Fix shost command overloading issues John Garry
2023-03-27 7:43 ` [PATCH v3 01/11] scsi: scsi_debug: Fix check for sdev queue full John Garry
2023-03-28 23:35 ` Douglas Gilbert
2023-03-29 4:20 ` Yi Zhang
2023-03-27 7:43 ` [PATCH v3 02/11] scsi: scsi_debug: Don't iter all shosts in clear_luns_changed_on_target() John Garry
2023-03-28 23:39 ` Douglas Gilbert
2023-03-27 7:43 ` [PATCH v3 03/11] scsi: scsi_debug: Change shost list lock to a mutex John Garry
2023-03-28 23:40 ` Douglas Gilbert
2023-03-27 7:43 ` [PATCH v3 04/11] scsi: scsi_debug: Protect block_unblock_all_queues() with mutex John Garry
2023-04-03 5:11 ` Douglas Gilbert [this message]
2023-03-27 7:43 ` [PATCH v3 05/11] scsi: scsi_debug: Use scsi_block_requests() to block queues John Garry
2023-04-03 5:13 ` Douglas Gilbert
2023-03-27 7:43 ` [PATCH v3 06/11] scsi: scsi_debug: Dynamically allocate sdebug_queued_cmd John Garry
2023-04-03 5:18 ` Douglas Gilbert
2023-03-27 7:43 ` [PATCH v3 07/11] scsi: scsi_debug: Use blk_mq_tagset_busy_iter() in sdebug_blk_mq_poll() John Garry
2023-04-03 5:19 ` Douglas Gilbert
2023-03-27 7:43 ` [PATCH v3 08/11] scsi: scsi_debug: Use blk_mq_tagset_busy_iter() in stop_all_queued() John Garry
2023-04-03 5:20 ` Douglas Gilbert
2023-03-27 7:43 ` [PATCH v3 09/11] scsi: scsi_debug: Use scsi_host_busy() in delay_store() and ndelay_store() John Garry
2023-04-03 5:21 ` Douglas Gilbert
2023-03-27 7:43 ` [PATCH v3 10/11] scsi: scsi_debug: Only allow sdebug_max_queue be modified when no shosts John Garry
2023-04-03 5:23 ` Douglas Gilbert
2023-03-27 7:43 ` [PATCH v3 11/11] scsi: scsi_debug: Drop sdebug_queue John Garry
2023-04-03 5:26 ` Douglas Gilbert
2023-04-03 2:15 ` [PATCH v3 00/11] Fix shost command overloading issues Martin K. Petersen
2023-04-12 2:04 ` Martin K. Petersen
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