v3: Use bdrv_parent_drained_begin/end. [Kevin]
Do it before releasing new_context. [Stefan]
Fam Zheng (2):
block: Make bdrv_parent_drained_begin/end public
block: Quiesce old aio context during bdrv_set_aio_context
block.c | 7 +++++--
block/io.c | 4 ++--
include/block/block.h | 16 ++++++++++++++++
3 files changed, 23 insertions(+), 4 deletions(-)
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2.9.3