From: Benoît Canet <ben...@irqsave.net> This patchset is designed to avoid starting a live migration while one or more streaming block jobs are running.
Tested with the following sequence: QEMU 1.1.50 monitor - type 'help' for more information (qemu) block_stream virtio0 1k (qemu) migrate tcp:localhost:4444 migrate: Streaming blocks migration (qemu) migrate tcp:localhost:4444 migrate: Streaming blocks migration (qemu) block_job_cancel virtio0 (qemu) migrate tcp:localhost:4444 migrate: Connection can not be completed immediately (qemu) => migration then succeed in v2: stefanha: Rename bdrv_have_block_jobs() to bdrv_are_busy() and make it return -EBUSY. paolo: remove spurious bdrv_close() Benoît Canet (3): block: Add bdrv_are_busy() so migration code abort if needed. qerror: Add error telling that streaming blocks migration migration: block migration when streaming block jobs are running. block.c | 13 +++++++++++++ block.h | 2 ++ migration.c | 5 +++++ qerror.c | 4 ++++ qerror.h | 3 +++ 5 files changed, 27 insertions(+) -- 1.7.9.5
