Hi Shaohua, hi Neil, this series contains a few updates to the raid5-cache feature. The first patch just ports it to the post-4.2 block layer. As part of that I noticed that it currently doesn't handle I/O errors - fixes for that will follow. The second and third patch simplify the I/O unit state machine and reduce latency and memory usage for the I/O units. The remainder are just a couple of cleanups in this area that I stumbled upon. Changes since V1: - only use REQ_FUA if supported natively by the log device -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
