[Qemu-devel] [PATCH v2 0/6] block: Enable byte granularity I/O

[Kevin Wolf <kwolf@redhat.com>]

Previous series have already converted some block drivers to byte-based rather
than sector-based interfaces. However, the common I/O path as well as raw-posix
still enforced a minimum alignment of 512 bytes because some sector-based logic
was involved.

This patch series removes these limitations and a sub-sector request actually
ends up as a sub-sector syscall now.

v2:
- Updated trace-events for bdrv_co_do_copy_on_readv() [Eric]
- Added some assertions [Eric]
- Renamed laio_submit_co() -> laio_co_submit() and added coroutine_fn
  to its prototype [Stefan]
- linux-aio: Include block/block.h and use BDRV_SECTOR_SIZE instead
  of 512 [Eric]

Kevin Wolf (6):
  block: Byte-based bdrv_co_do_copy_on_readv()
  block: Prepare bdrv_aligned_preadv() for byte-aligned requests
  block: Prepare bdrv_aligned_pwritev() for byte-aligned requests
  raw-posix: Switch to bdrv_co_* interfaces
  raw-posix: Implement .bdrv_co_preadv/pwritev
  block: Don't enforce 512 byte minimum alignment

 block.c               |   2 +-
 block/io.c            | 128 ++++++++++++++++++++++++++------------------------
 block/linux-aio.c     |  84 ++++++++++++++++++++++++---------
 block/mirror.c        |  10 ++--
 block/raw-aio.h       |   3 ++
 block/raw-posix.c     |  62 ++++++++++++------------
 include/block/block.h |  10 ++--
 trace-events          |   2 +-
 8 files changed, 176 insertions(+), 125 deletions(-)

-- 
1.8.3.1