[dm-devel] [PATCH 4/8] dm mpath: remove process_queued_ios()
Hannes Reinecke
hare at suse.de
Fri Feb 28 09:37:05 UTC 2014
On 02/28/2014 10:05 AM, Junichi Nomura wrote:
> On 02/27/14 16:30, Hannes Reinecke wrote:
>> @@ -1214,9 +1189,11 @@ static void pg_init_done(void *data, int errors)
>>
>> if (!m->pg_init_required)
>> m->queue_io = 0;
>> -
>> - m->pg_init_delay_retry = delay_retry;
>> - queue_work(kmultipathd, &m->process_queued_ios);
>> + else if (m->current_pg) {
>> + m->pg_init_delay_retry = delay_retry;
>> + if (__pg_init_all_paths(m))
>> + goto out;
>> + }
>
> As I commented before:
> https://www.redhat.com/archives/dm-devel/2014-February/msg00013.html
>
> I think the code here should clear queue_io like this
> when retry was requested but wasn't done:
>
> if (m->pg_init_required) {
> m->pg_init_delay_retry = delay_retry;
> if (__pg_init_all_paths(m))
> goto out;
> }
> m->queue_io = 0;
>
> Otherwise, if __pg_init_all_paths() returns 0, m->queue_io will remain
> as "1" and nobody will clear it.
>
You are right. Will be fixing it up.
Thanks for the review.
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare at suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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