Eventually we want to be able to support NFSv4 delegations for cluster filesystem exports. We implement NFSv4 delegations using leases. So to make this work, we need leases to be passed down to the filesystem, so that a cluster filesystem can enforce leases correctly across all nodes. The following patches do some minor cleanup of the lease code, and then add a setlease() file method. For now the only implementations of setlease() we include (for NFS and GFS2) are used only to turn off leases selectively. To complete this work we'll need to implement proper lease support for GFS2 or OCFS2, and probably do some more work on lease breaking. But we're requesting this be included in -mm now in the theory that the lease-disabling behavior is useful now anyway, and in hopes that this will the required further work. I'm also keeping this in the "for-mm" branch at: git://linux-nfs.org/~bfields/linux.git for-mm (And maybe you could also remove the server-cluster-locking-api branch from your list of git fetches, if it's still there?--I don't intend to use it any more.) --b. - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
