I'm fairly sure about conversions 0001-0003. 0004 should be okay
although multipath wasn't tested. 0005, I'm not quite sure about. It
works fine for the tests I've done but there are many other targets
and code paths that I didn't test. So, please be careful with the
last patch. I think it would be best to route the last two through
the respective md/dm trees after the core part is merged and pulled
into those trees.
The nice thing about the conversion is that in many cases it replaces
postflush with FUA writes which can be handled by request queues lower
in the chain. For md/dm, this replaces an array wide cacheflush with
FUA writes to only affected member devices.
After this patchset, the followings remain to be converted.
* scsi_error.c for some reason tests REQ_HARDBARRIER. I think this
part can be dropped altogether but am not sure.