[Cluster-devel] [PATCH 11/30] iomap: add the new iomap_iter model

[Dan Williams]

On Thu, Aug 19, 2021 at 9:12 PM Christoph Hellwig <hch at lst.de> wrote:
>
> On Thu, Aug 19, 2021 at 02:25:52PM -0700, Dan Williams wrote:
> > Given most of the iomap_iter users don't care about srcmap, i.e. are
> > not COW cases, they are leaving srcmap zero initialized. Should the
> > IOMAP types be incremented by one so that there is no IOMAP_HOLE
> > confusion? In other words, fold something like this?
>
> A hole really means nothing to read from the source.  The existing code
> also relies on that.

Ok, I've since found iomap_iter_srcmap(). Sorry for the noise.