[Qemu-block] [PATCH for-2.9-rc5 v4 0/2] block: Drain BH in bdrv_drained_begin

[Fam Zheng]

v4: Split patch, and fix the unsafe bdrv_unref. [Paolo]

Fam Zheng (2):
  block: Walk bs->children carefully in bdrv_drain_recurse
  block: Drain BH in bdrv_drained_begin

 block/io.c            | 23 ++++++++++++++++++++---
 include/block/block.h | 22 ++++++++++++++--------
 2 files changed, 34 insertions(+), 11 deletions(-)

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2.9.3