> > And teach VFS to block suspension, while waiting on a mutex held by > > another process performing a fuse operation. > > > > I can already hear the beautiful praise from Al Viro at the sight of > > that ;) > > There is that. > > OK, bite the bullet. Tasks involved in fuse are special. Give them a flag > and teach the freezer to put them on ice only after all other task are > frozen. In a way they are kernel, there's no use denying that. And flag every other process, that the flagged process is communicating with? How are you proposing to do that? Quoting Paul: "1. The freezer cannot be guaranteed deadlock-free without constructing a dependency graph between tasks (both user and kernel), which is virtually impossible since the dependencies are not externally observable." Miklos _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
