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[Qemu-block] [PATCH v2 0/6] block: Fix BlockDriver callbacks in bdrv_dra

From: Kevin Wolf
Subject: [Qemu-block] [PATCH v2 0/6] block: Fix BlockDriver callbacks in bdrv_drain_all_begin()
Date: Wed, 6 Dec 2017 11:53:03 +0100

I was looking into the drain functions in order to develop them a bit in
the direction that Fam suggested, to unify the code between bdrv_drain()
and bdrv_drain_all() a bit more, and maybe to find a place to take
coroutine locks for graph changes.

The first thing I found is a bug in bdrv_drain_all(), so I'm already
sending this part before I have made much progress with my actual plan.

- Added patches 5 and 6 [Paolo]
- Fixed commit message of patch 1 [Eric]

Kevin Wolf (6):
  block: Make bdrv_drain_invoke() recursive
  block: Call .drain_begin only once in bdrv_drain_all_begin()
  test-bdrv-drain: Test BlockDriver callbacks for drain
  block: bdrv_drain_recurse(): Remove unused begin parameter
  block: Don't wait for requests in bdrv_drain*_end()
  block: Unify order in drain functions

 block/io.c              |  31 +++++++----
 tests/test-bdrv-drain.c | 137 ++++++++++++++++++++++++++++++++++++++++++++++++
 tests/Makefile.include  |   2 +
 3 files changed, 159 insertions(+), 11 deletions(-)
 create mode 100644 tests/test-bdrv-drain.c


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