[Qemu-stable] [PATCH v2 0/5] block: keep AioContext pointer in BlockBackend

[Fam Zheng]

The first patches clean up usage of BlockBackend and changing of its (root's)
aio contexts; the last patch is an update of Stefan's previous version rebasing
on top of current master. The biggest change from the RFC is that blk_insert_bs
callers are responsible to put the BB and BDS on the same context before
calling it.

This fixes the crash triggered by "change" a scsi-cd on a virtio-scsi dataplane
device.

The new assertions in block-backend.c ensures we won't have a conflict pair of
BlockBackend users from different contextes.

Fam Zheng (4):
  blockdev-mirror: Sanity check before moving target_bs AioContext
  blockdev: Move BDS AioContext before inserting to BB
  block: Introduce and make use of blk_new_with_root
  migration: Set correct AioContext to BlockBackend

Stefan Hajnoczi (1):
  block: keep AioContext pointer in BlockBackend

 block/backup.c                   |  3 +--
 block/block-backend.c            | 48 +++++++++++++++++++++++++++++-----------
 block/commit.c                   | 12 ++++------
 block/mirror.c                   |  3 +--
 blockdev.c                       | 42 ++++++++++++++++++++++++++---------
 blockjob.c                       |  3 +--
 hmp.c                            |  3 +--
 hw/core/qdev-properties-system.c |  3 +--
 include/sysemu/block-backend.h   |  1 +
 migration/block.c                |  1 +
 nbd/server.c                     |  3 +--
 tests/test-blockjob.c            |  3 +--
 12 files changed, 79 insertions(+), 46 deletions(-)

-- 
2.7.4