[Qemu-block] [PATCH 0/8] quorum: Implement .bdrv_co_preadv/pwritev()

[Kevin Wolf]

This is part of my work that aims to remove the bdrv_aio_*() emulation in io.c.

After the series, quorum doesn't only use the preferred interfaces, but the
code becomes a little easier to follow and byte granularity requests are
supported. There is probably still some potential for additional cleanups in a
follow-up series, but this should already be enough to be worth merging.

v1 (from RFC):
- Patch 1: Removed useless #include [Eric]
- Patch 3:
  * Define QuorumCo at the top so that a later patch doesn't
    have to move it [Eric]
  * Renamed QuorumCo.i to QuorumCo.idx [Berto]
  * Removed useless co = NULL [Eric]
- Patch 5/6: Reenter caller coroutine only after the last request [Berto]
- Patch 6: Replace void cast by comment [Berto]
- Patch 7: Change rounding [Eric/Berto]

Kevin Wolf (8):
  coroutine: Introduce qemu_coroutine_enter_if_inactive()
  quorum: Remove s from quorum_aio_get() arguments
  quorum: Implement .bdrv_co_readv/writev
  quorum: Do cleanup in caller coroutine
  quorum: Inline quorum_aio_cb()
  quorum: Avoid bdrv_aio_writev() for rewrites
  quorum: Implement .bdrv_co_preadv/pwritev()
  quorum: Inline quorum_fifo_aio_cb()

 block/quorum.c           | 387 +++++++++++++++++++++++++----------------------
 include/qemu/coroutine.h |   6 +
 util/qemu-coroutine.c    |   7 +
 3 files changed, 221 insertions(+), 179 deletions(-)

-- 
1.8.3.1