On 09/01/2016 04:56 PM, John Snow wrote: > If a device still has an attached BDS because the medium has not yet > been removed, we will be unable to migrate to a new host because > blk_flush will return an error for that backend. > > Replace the call to blk_is_available to blk_is_inserted to weaken > the check and allow flushes from the backend to work, while still > disallowing flushes from the frontend/device model to work.
Sounds slightly nicer if you stop short: s/ to work// > > This fixes a regression present in 2.6.0 caused by the following commit: > fe1a9cbc339bb54d20f1ca4c1e8788d16944d5cf > block: Move some bdrv_*_all() functions to BB > > Signed-off-by: John Snow <js...@redhat.com> > --- > block/block-backend.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) Reviewed-by: Eric Blake <ebl...@redhat.com> However, I don't have an offhand suggestion on how best to test it. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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