[Qemu-devel] [PATCH v2 for-1.2 0/2] stream: complete early if end of backing file is reached

[Stefan Hajnoczi]

Image streaming hangs if the backing image is smaller than the image file.  The
problem is that the image streaming loop makes no progress when
bdrv_co_is_allocated() returns 0 with pnum=0.  More details in the actual
patch.

I have also included a qemu-iotest to check this scenario.  It hangs when run
against qemu.git/master and passes when the patch is applied.

Stefan Hajnoczi (2):
  stream: complete early if end of backing file is reached
  qemu-iotests: add backing file smaller than image test case

 block/stream.c             |    6 ++++++
 tests/qemu-iotests/030     |   33 +++++++++++++++++++++++++++++++++
 tests/qemu-iotests/030.out |    4 ++--
 3 files changed, 41 insertions(+), 2 deletions(-)

-- 
1.7.10.4