> > > As for unlink... How do you deal with having that thing > > > mounted, mounting something _under_ it (so that vfsmount would be kept > > > busy) and then unlinking that sucker? > > > > Yeah, that's a good point. Current patch doesn't deal with that. > > Simplest solution could be to disallow submounting these. Don't think > > it makes much sense anyway. > > > > Hmm, think about /your/path/qemu-disk1.img/boot , > /your/path/qemu-disk2.img/usr , ...
I get it. It could probably be done with a little added complexity. For example when a real mount is attached onto a dir-on-file mount, the "mountedness" is propagated up to the dentry on the next real mount. So in that case unlink won't be allowed, even if the immediate attachment is a dir-on-file mount. This is tricky to do right though. Other possibility is to detach all mount trees attached to dentry on unlink. Miklos - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
