Hi. On Mon, 2007-04-02 at 21:36 +0200, Pavel Machek wrote: > Hi! > > > > But you're still likely to run into trouble if you unplug a storage > > > device, move it to another system and write on it, then plug it back into > > > the original system. The PLVM would somehow have to recognize that the > > > data had been changed. I don't know a foolproof way of doing that. > > > > > > > Mark the filesystem as in-use with a one-time UUID in the superblock at > > mount time. If one moved the drive to another system it would require > > an fsck to clear the UUID before the other system could use it; then > > the original machine would refuse to use the drive when the UUID didn't > > match on resume. > > You still need fs-specific code, I'm afraid... plus userland tool > to reset signatures back.
You don't need userland to reset the signatures. More kernel code, sure. But it doesn't _need_ to be userland. Regards, Nigel - 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/
