[Qemu-devel] [PATCH v2 0/3] block-backend: Queue requests while drained

[Kevin Wolf <kwolf@redhat.com>]

This series fixes the problem that devices like IDE, which submit
requests as a direct result of I/O from the CPU thread, can continue to
submit new requests even in a drained section.

v2:
- Rebased on top of block-next
- Replaced patch 2 with draining mirror_top_bs instead [Max]
- Removed wait_while_drained parameter from patch 3 [Max]
- Covered blk_co_flush() [Max]
- Fixed some typos [Eric]

Kevin Wolf (3):
  block: Remove blk_pread_unthrottled()
  mirror: Keep mirror_top_bs drained after dropping permissions
  block-backend: Queue requests while drained

 include/sysemu/block-backend.h |  3 +-
 block/backup.c                 |  1 +
 block/block-backend.c          | 69 ++++++++++++++++++++++++----------
 block/commit.c                 |  2 +
 block/mirror.c                 |  7 +++-
 blockjob.c                     |  3 ++
 hw/block/hd-geometry.c         |  7 +---
 tests/test-bdrv-drain.c        |  1 +
 8 files changed, 65 insertions(+), 28 deletions(-)

-- 
2.20.1