On Mon, Jul 23, 2012 at 3:22 PM, <benoit.ca...@gmail.com> wrote: > From: Benoît Canet <ben...@irqsave.net> > > This patchset is designed to avoid starting a live migration while any of > the block device is busy. > > 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: Migration is blocked by streaming > (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() > > in v3 > pm215: rewrite confusing error message > > in v4: > stefanha: make the error message more general > > Benoît Canet (3): > block: Add bdrv_are_busy() > qerror: Add error telling that block dev usage prevents 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
Reviewed-by: Stefan Hajnoczi <stefa...@linux.vnet.ibm.com>
