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Re: [dm-devel] [PATCH 4/8] dm mpath: remove process_queued_ios()



On Wed, Mar 05 2014 at  3:59am -0500,
Hannes Reinecke <hare suse de> wrote:

> On 03/03/2014 12:12 AM, Junichi Nomura wrote:
> > On 02/28/14 23:33, Hannes Reinecke wrote:
> >> @@ -1214,9 +1189,12 @@ 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;
> >> +		m->queue_io = 0;
> >> +	}
> > 
> > Hi Hannes,
> > 
> > If m->pg_init_required && !m->current_pg,
> > doesn't m->queue_io remain 1 while nobody kicks pg_init?
> > 
> > That's why I suggested this:
> > 
> > 	if (m->pg_init_required) {
> > 		m->pg_init_delay_retry = delay_retry;
> > 		if (__pg_init_all_paths(m))
> > 			goto out;
> > 	}
> > 	m->queue_io = 0;
> > 
> Yeah, sorry. You are right.
> 
> Mike, can you fix it up or do you need an additional round of patches?

I'll take care of it.  I won't be looking at these patches until next
week though.

Mike


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