On Mon, 2016-05-09 at 10:47 +0200, Christoph Hellwig wrote: > This series add a new file system I/O path that uses the iomap > structure > introduced for the pNFS support and support multi-page buffered > writes. > > This was first started by Dave Chinner a long time ago, then I did > beat > it into shape for production runs in a very constrained ARM NAS > enviroment for Tuxera almost as long ago, and now half a dozen > rewrites > later it's back. > > The basic idea is to avoid the per-block get_blocks overhead > and make use of extents in the buffered write path by iterating over > them instead. > > Note that patch 1 conflicts with Vishals dax error handling series. > It would be great to have a stable branch with it so that both the > XFS and nvdimm tree could pull it in before the other changes in this > area. I'm looking to post a stable branch with my patches soon. My patches depend on Jan's fixes for ext4 and DAX, and as soon as they land in a stable ext4 branch, I'll create one for dax error handling. In the meanwhile, v7 of my patches includes your patch 1 updated for the error handling series. > > Changes since V3: > - fix DAX based zeroing > - Reviews and trivial fixes from Bob > > Changes since V2: > - fix the range for delalloc punches after failed writes > - updated some changelogs > > Chances since V1: > - add support for fiemap > - fix a test fail on 1k block sizes > - prepare for 64-bit length, this will be used in a follow on > patchset > _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
