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

[Kevin Wolf]

This is part of a series that I'm working on and that aims to remove the
bdrv_aio_*() emulation in io.c. blkdebug and blkverify were easy, but for
quorum I need a few more patches, so I'm sending this out as an RFC while I
continue work on the rest (QED, and then possibly some polishing).

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.

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           | 373 +++++++++++++++++++++++++----------------------
 include/qemu/coroutine.h |   6 +
 util/qemu-coroutine.c    |   8 +
 3 files changed, 211 insertions(+), 176 deletions(-)

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1.8.3.1