Re: [RESEND PATCH 3/3] lockdep: Assign a lock_class per gendisk used for wait_for_completion()

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On Wed, Oct 18, 2017 at 11:59:16AM +0200, Ingo Molnar wrote:
> 
> * Byungchul Park <byungchul.park@xxxxxxx> wrote:
> 
> > diff --git a/block/bio.c b/block/bio.c
> > index 9a63597..0d4d6c0 100644
> > --- a/block/bio.c
> > +++ b/block/bio.c
> > @@ -941,7 +941,7 @@ int submit_bio_wait(struct bio *bio)
> >  {
> >  	struct submit_bio_ret ret;
> >  
> > -	init_completion(&ret.event);
> > +	init_completion_with_map(&ret.event, &bio->bi_disk->lockdep_map);
> >  	bio->bi_private = &ret;
> >  	bio->bi_end_io = submit_bio_wait_endio;
> >  	bio->bi_opf |= REQ_SYNC;
> > @@ -1382,7 +1382,7 @@ struct bio *bio_map_user_iov(struct request_queue *q,
> >  
> >  			if (len <= 0)
> >  				break;
> > -			
> > +
> >  			if (bytes > len)
> >  				bytes = len;
> >  
> 
> That's a spurious cleanup unrelated to this patch.

I will separate it. Thank you.




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