On Tue, Mar 06, 2012 at 06:32:19PM +0100, Benoît Canet wrote: > QED + live migration is an unsafe and disabled mix. > > This patchset make qed and live migration safe to use. > > The check of QED images is delayed during the incoming migration. > After the migration complete the QED images are checked. > > Benoît Canet (10): > block: Add new BDRV_O_INCOMING flag to notice incoming live migration > block: add a function to set incoming live migration > block: add a function to clear incoming live migration > block: rename *_invalidate_cache_* to *_post_incoming_migration_* > migration: inform the block layer of incoming live status > block: open images with BDRV_O_INCOMING on incoming live migration > qed: extract image checking into check_image_if_needed > qed: add bdrv_post_incoming_migration operation checking the image > qed: honor BDRV_O_INCOMING for incoming live migration > qed: remove incoming live migration blocker > > block.c | 35 +++++++++++++++++++++--- > block.h | 13 +++++++-- > block/qcow2.c | 7 ++++- > block/qed.c | 81 > +++++++++++++++++++++++++++++++++++---------------------- > block/qed.h | 2 - > block_int.h | 4 +- > migration.c | 9 +++++- > vl.c | 5 +++ > 8 files changed, 110 insertions(+), 46 deletions(-)
We talked about image format live migration approaches on IRC today with Kevin. I think the approach you have here will do the job. Stefan
