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[v2,2/2] scsi: Add comment of target_destroy in scsi_host_template

Message ID 20231016020847.1270258-3-haowenchao2@huawei.com
State New
Headers show
Series cleanup patch | expand

Commit Message

Wenchao Hao Oct. 16, 2023, 2:08 a.m. UTC
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(+)

Comments

Wenchao Hao Oct. 18, 2023, 2:24 a.m. UTC | #1
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.
>
diff mbox series

Patch

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 *);