[dm-devel] [PATCH v3 11/26] block: Add submit_bio_wait(), remove from md

[Vivek Goyal]

On Mon, Sep 24, 2012 at 03:34:51PM -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.

Who is going to make use of actual error code and why checking
BIO_UPTODATE is not sufficient (as existing code is doing)?

Thanks
Vivek