NFS: Add a lookupfh NFS RPC op

Add a lookup filehandle NFS RPC op so that a file handle can be looked up
without requiring dentries and inodes and other VFS stuff when doing an NFS4
pathwalk during mounting.

Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 41e5a19199e9..26879771831d 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -770,6 +770,9 @@ struct nfs_rpc_ops {
 
         int     (*getroot) (struct nfs_server *, struct nfs_fh *,
                             struct nfs_fsinfo *);
+        int     (*lookupfh)(struct nfs_server *, struct nfs_fh *,
+                            struct qstr *, struct nfs_fh *,
+                            struct nfs_fattr *);
         int     (*getattr) (struct nfs_server *, struct nfs_fh *,
                             struct nfs_fattr *);
         int     (*setattr) (struct dentry *, struct nfs_fattr *,