linux-kernel - Re: [PATCH 2/2] scsi: Add comment of target_destroy in scsi_host

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Message-ID: <9567a78a-baf8-432b-b279-cfc56d370a1d@acm.org>
Date:   Fri, 22 Sep 2023 07:53:08 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     Wenchao Hao <haowenchao2@...wei.com>,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        open-iscsi@...glegroups.com, linux-scsi@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, louhongxiang@...wei.com
Subject: Re: [PATCH 2/2] scsi: Add comment of target_destroy in
 scsi_host_template

On 9/22/23 02:38, Wenchao Hao wrote:
> Add comment to tell callback function target_destroy of
> scsi_host_template is called in atomic context.
> 
> Signed-off-by: Wenchao Hao <haowenchao2@...wei.com>
> ---
>   include/scsi/scsi_host.h | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
> index 49f768d0ff37..a72248fa5adf 100644
> --- a/include/scsi/scsi_host.h
> +++ b/include/scsi/scsi_host.h
> @@ -245,6 +245,9 @@ struct scsi_host_template {
>   	 * midlayer calls this point so that the driver may deallocate
>   	 * and terminate any references to the target.
>   	 *
> +	 * Note: this callback in called with spin_lock held, so donot
> +	 * call functions might cause schedule
> +	 *

This comment should mention which spinlock is held.

Thanks,

Bart.