[Linux-cachefs] [RFC PATCH] cifs: Transition from ->readpages() to ->readahead()

[David Howells]

Matthew Wilcox <willy at infradead.org> wrote:

> > Would it be possible to make readahead_count() do:
> > 
> > 	return rac->_nr_pages - rac->_batch_count;
> > 
> > maybe?
> 
> Yes, I think that would make sense.  Do we also need to change
> readhead_length()?  It seems to me that it's only ever called once at
> initialisation, so it should be possible to keep the two in sync.
> Can you write & test such a patch?  I'll support it going upstream
> (either by taking it myself or giving you a R-b to take it through your
> tree).

It seems I also have a problem with readahead_index() needing compensation
too.  I'm guessing that's more of a problem, however, as I think that's
expected to refer to the beginning of the current batch.

David