[PATCH 3/5] NFS: avoid deadlocks with loop-back mounted NFS filesystems.

Support for loop-back mounted NFS filesystems is useful when NFS is used to access shared storage in a high-availability cluster. If the node running the NFS server fails, some other node can mount the filesystem and start providing NFS service. If that node already had the filesystem NFS

[PATCH 3/5] NFS: avoid deadlocks with loop-back mounted NFS filesystems.

Support for loop-back mounted NFS filesystems is useful when NFS is used to access shared storage in a high-availability cluster. If the node running the NFS server fails, some other node can mount the filesystem and start providing NFS service. If that node already had the filesystem NFS