On Tue, Mar 11, 2014 at 10:58:39AM +0100, Kevin Wolf wrote: > After migration has completed, we call bdrv_invalidate_cache() so that > drivers which cache some data drop their stale copy of the data and > reread it from the image file to get a new version of data that the > source modified while the migration was running. > > Reloading metadata from the image file is useless, though, if the size > of the image file stays stale (this is a value that is cached for all > image formats in block.c). Reads from (meta)data after the old EOF > return only zeroes, causing image corruption. > > We need to update bs->total_sectors in all layers that could potentially > have changed their size (i.e. backing files are not a concern - if they > are changed, we're in bigger trouble) > > Signed-off-by: Kevin Wolf <kw...@redhat.com> > --- > block.c | 10 +++++++++- > block/qcow2.c | 2 ++ > block/qed.c | 3 +++ > 3 files changed, 14 insertions(+), 1 deletion(-)
Thanks, applied to my block tree: https://github.com/stefanha/qemu/commits/block Stefan
