Christoph's suggestion that we go add f_ops individually is a really good way to get people thinking about individual cases that we have to deal with. Can we checkpoint an *open* /proc/mounts? I don't think we want to. It could get really nasty really fast. But, what if the f_pos is 0? That makes it a lot easier. If the "may checkpoint" flag is per-container (as Alexey has said) and one-way (as Ingo has said), does a single 'cat /proc/mounts' 5 days ago keep a container from being checkpointed today? I just don't think the container-wide flag works if it is one way. I think making it per-process or per-resource (so it can be more easily tracked at fork()/clone()/exec()) is the only way to go. It makes it so simple since only the 'cat /proc/mounts' process becomes uncheckpointable. Once it exits, we are OK and can checkpoint again. That all seems right to me. -- Dave _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers