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SubjectRe: [PATCH v2 2/2] scsi: Add comment of target_destroy in scsi_host_template
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On 2023/10/18 5:04, Bart Van Assche wrote:
> On 10/15/23 19:08, 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@huawei.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..2e8d77441064 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 shost->host_lock held,
>> +     * so donot call functions might cause schedule
>> +     *
>>        * Status: OPTIONAL
>>        */
>>       void (* target_destroy)(struct scsi_target *);
>
> The above comment can be made shorter and spelling and grammar can be improved. How about the following: "This callback is called with the host lock held and hence must not sleep."?
>

Looks better, I would update.

Thanks.

> Thanks,
>
> Bart.
>

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