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(-) -- 2.9.3
