FYI, generic/475 always fail on me for btrfs, due to the warnings on
transaction abort.
Anyway, I have come up with a version that seems to mostly work.
The main change is that btrfs_sync_file stashes away the journal handle.
I also had to merge parts of the ->iomap_end patch into the main iomap
one. I also did some cleanups to my iomap changes while looking over it.
Let me know what you thing, the tree is here:
git://git.infradead.org/users/hch/misc.git btrfs-dio
Gitweb:
http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/btrfs-dio
