Re: [dm-devel] [RFC PATCH 00/32] separate operations from flags in the bio/request structs

[Christoph Hellwig]

On Wed, Nov 04, 2015 at 10:53:39AM -0600, Mike Christie wrote:
> > If you have to touch submit_bio() and submit_bio_wait(), how about
> > requiring the callers of these functions to set the cmd and flags
> > arguments in the bio structure and to leave out the cmd and flags
> > arguments from the submit_bio() and submit_bio_wait() functions ? A
> > (compile tested only) patch that implements this idea is available at
> > https://lkml.org/lkml/2014/6/2/173.
> > 
> 
> Yeah, I can do that.

I think this would be useful to do at the beginning of the series.
While this will have a huge trickle effect through the series it should
make thing a bit simpler overall.  By leaving op 0 undefined it should
also help to create a nice error trap for unconverted code.
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