On Wed, Feb 06, 2013 at 01:32:02PM +0100, Benoît Canet wrote: > In the case of a race condition between two writes a l2 entry can be written > without QCOW_OFLAG_COPIED before the first write fill it. > This patch simply check if the l2 entry has the correct offset without > QCOW_OFLAG_COPIED and do nothing. > > Signed-off-by: Benoit Canet <ben...@irqsave.net> > --- > block/qcow2-cluster.c | 5 +++++ > 1 file changed, 5 insertions(+)
Is this a general qcow2 bug (without deduplication)? I thought there is L2Meta wait code in qcow2_co_writev() that prevents overlapping writes from executing at the same time?
