Subject: Re: [PATCH -next 1/3] bcache: Add missing #include <linux/prefetch.h>

From: Kent Overstreet <[email-masked]>
Date: Mon, 8 Apr 2013 14:00:20 -0700

On Sun, Apr 07, 2013 at 02:15:49PM -0700, David Rientjes wrote:
> On Wed, 27 Mar 2013, Kent Overstreet wrote:
> 
> > Nope - looks like __WARN() doesn't exist if CONFIG_BUG=n, whoops.
> > 
> > Adding this to the queue:
> > 
> > commit 796c213186b850b3e6e8d5fd5799b0fd74721ea3
> > Author: Kent Overstreet <[email-masked]>
> > Date:   Wed Mar 27 12:47:45 2013 -0700
> > 
> >     bcache: Use WARN_ONCE() instead of __WARN()
> >     
> >     Signed-off-by: Kent Overstreet <[email-masked]>
> > 
> > diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
> > index d4f2164..cb4578a 100644
> > --- a/drivers/md/bcache/bset.c
> > +++ b/drivers/md/bcache/bset.c
> > @@ -883,7 +883,7 @@ struct bkey *bch_btree_iter_next(struct btree_iter *iter)
> >  		iter->data->k = bkey_next(iter->data->k);
> >  
> >  		if (iter->data->k > iter->data->end) {
> > -			__WARN();
> > +			WARN_ONCE(1, "bset was corrupt!\n");
> >  			iter->data->k = iter->data->end;
> >  		}
> >  
> 
> This problem still persists in linux-next as of today, how is this fix 
> being pushed?

Sorry for the delay, I've been moving all last week - I just sent Jens a
pull request with the latest bcache fixes, though.