On 20.09.18 18:19, Kevin Wolf wrote: > For the block job drain test, don't only test draining the source and > the target node, but create a backing chain for the source > (source_backing <- source <- source_overlay) and test draining each of > the nodes in it. > > When using iothreads, the source node (and therefore the job) is in a > different AioContext than the drain, which happens from the main > thread. This way, the main thread waits in AIO_WAIT_WHILE() for the > iothread to make process and aio_wait_kick() is required to notify it. > The test validates that calling bdrv_wakeup() for a child or a parent > node will actually notify AIO_WAIT_WHILE() instead of letting it hang. > > Signed-off-by: Kevin Wolf <kw...@redhat.com> > --- > tests/test-bdrv-drain.c | 75 > +++++++++++++++++++++++++++++++++++++++++++------ > 1 file changed, 67 insertions(+), 8 deletions(-)
Reviewed-by: Max Reitz <mre...@redhat.com>
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