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

[Tejun Heo <tj kernel org>]

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.  :(

Thanks.

-- 
tejun