[PATCH 03/33] mm: Implement readahead_control pageset expansion

[David Howells]

Mike Marshall <hubcap at omnibond.com> wrote:

> Matthew has looked at how I'm fumbling about
> trying to deal with Orangefs's need for much larger
> than page-sized IO...
> 
> I think I need to implement orangefs_readahead
> and from there fire off an asynchronous read
> and while that's going I'll call readahead_page
> with a rac that I've cranked up with readahead_expand
> and when the read gets done I'll have plenty of pages
> for the large IO I did.

Would the netfs helper lib in patches 5-13 here be of use to orangefs?  Most
of the information about it is on patch 8.

David