On Mon, Jul 01, 2019 at 11:54:24PM +0200, Christoph Hellwig wrote: > Hi all, > > in this straight from the jetplane edition I present the series to > convert gfs2 to full iomap usage for the ordered and writeback mode, > that is we use iomap_page everywhere and entirely get rid of > buffer_heads in the data path. This has only seen basic testing > which ensured neither 4k or 1k blocksize in ordered mode regressed > vs the xfstests baseline, although that baseline tends to look > pretty bleak. > > The series is to be applied on top of my "lift the xfs writepage code > into iomap v2" series. Ok, this doesn't look too bad from the iomap perspective, though it does raise more questions. :) gfs2 now has two iopaths, right? One that uses bufferheads for journalled data, and the other that uses iomap? That seems like it's only a partial conversion - what needs to be done to iomap and gfs2 to support the journalled data path so there's a single data IO path? Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx
