On Mon, Jan 09, 2023 at 01:46:42PM +0100, Andreas Gruenbacher wrote: > We can handle that by adding a new IOMAP_NOCREATE iterator flag and > checking for that in iomap_get_folio(). Your patch then turns into > the below. Exactly. And as I already pointed out in reply to Dave's original patch what we really should be doing is returning an ERR_PTR from __filemap_get_folio instead of reverse-engineering the expected error code. The only big question is if we should apply Dave's patch first as a bug fix before this series, and I suspect we should do that.
