Re: [dm-devel] [PATCH v2 10/26] block: Add submit_bio_wait(), remove from md

[Kent Overstreet <koverstreet google com>]

On Thu, Sep 20, 2012 at 04:56:43PM -0700, Tejun Heo wrote:
> On Mon, Sep 10, 2012 at 05:22:21PM -0700, Kent Overstreet wrote:
> > Random cleanup - this code was duplicated and it's not really specific
> > to md.
> > 
> > Also added the ability to return the actual error code.
> > 
> > Signed-off-by: Kent Overstreet <koverstreet google com>
> > CC: Jens Axboe <axboe kernel dk>
> > CC: NeilBrown <neilb suse de>
> 
> Acked-by: Tejun Heo <tj kernel org>
> 
> > --- a/include/linux/bio.h
> > +++ b/include/linux/bio.h
> > @@ -249,6 +249,7 @@ extern void bio_endio(struct bio *, int);
> >  struct request_queue;
> >  extern int bio_phys_segments(struct request_queue *, struct bio *);
> >  
> > +extern int submit_bio_wait(int rw, struct bio *bio);
> >  void bio_advance(struct bio *, unsigned);
> 
> Heh, this is one of the reasons why I don't like extern on function
> prototypes.  It's not necessary and people end up jumping between the
> two forms.  :(

Yeah, I dislike it too but I was trying to follow the style in that file
- I did fix bio_advance() a few minutes ago.