On 19.09.2016 23:21, John Snow wrote: > > > On 09/19/2016 04:58 PM, Max Reitz wrote: >> On 19.09.2016 18:44, John Snow wrote: >>> Final re-send for wording. >>> >>> The move to blk_flush altered the behavior of migration and flushing >>> nodes that are not reachable via the guest, but are still reachable >>> via QEMU and may or may not need to be flushed. >>> >>> This is likely the simplest solution for now until we nail down our >>> policy a bit more. >>> >>> This is intended for 2.6.2 and/or 2.7.1, to fix problems with libvirt >>> et al being unable to migrate QEMU when the CDROM tray is open. >>> >>> v4: >>> Commit message update. >>> >>> v3: >>> Trying to take a hint from Kevin, reinstating bdrv_flush_all. >>> If it's not what we want, we can try moving back to v2, >>> acknowledging that a nicer solution in the future: >>> (A) Can skip flushing on devices that just don't need it, and >>> (B) Optionally institutes some sort of flush-on-eject policy. >>> >>> ________________________________________________________________________________ >>> >>> >>> For convenience, this branch is available at: >>> https://github.com/jnsnow/qemu.git branch atapi-tray-migfix >>> https://github.com/jnsnow/qemu/tree/atapi-tray-migfix >>> >>> This version is tagged atapi-tray-migfix-v4: >>> https://github.com/jnsnow/qemu/releases/tag/atapi-tray-migfix-v4 >>> >>> John Snow (2): >>> block: reintroduce bdrv_flush_all >>> qemu: use bdrv_flush_all for vm_stop et al >>> >>> block/io.c | 25 +++++++++++++++++++++++++ >>> cpus.c | 4 ++-- >>> include/block/block.h | 1 + >>> 3 files changed, 28 insertions(+), 2 deletions(-) >> >> Reviewed-by: Max Reitz <[email protected]> >> > > http://i.imgur.com/DNltmfT.jpg
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