On Thu, Jun 14, 2018 at 03:04:38PM +0200, Andreas Gruenbacher wrote: > I saw that you've pushed this onto the gfs2-iomap branch in your xfs > repository. I've rebased the gfs2 iomap-write branch onto that; > there's a trivial patch for adding a private pointer to struct iomap > at the head of that branch that would sense to move to the shared > branch as well now. Please send that patch out ASAP. > The next step would probably be to start using iomap_readpage / > iomap_readpages in gfs2 for block size == page size. This requires > adding inline data support to iomap_readpage which is trivial, but > because of gfs2's reliance on buffer heads, that alone isn't enough. Is it? At least for block size == page size we will only call readpage on a pristine, newly allocated page. So buffer heads won't be in the game at that point, and the iomap buffered write code will just allocate them for you once we start a write operation, or take a page fault that makes the page writable.
