1 files changed, 49 insertions, 0 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 01dcd4c8dc4f..e1a26c653e78 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3805,6 +3805,54 @@ nfs4_proc_lookup_mountpoint(struct inode *dir, const struct qstr *name,
         return (client == NFS_CLIENT(dir)) ? rpc_clone_client(client) : client;
 }
 
+static int _nfs4_proc_lookupp(struct inode *inode,
+                struct nfs_fh *fhandle, struct nfs_fattr *fattr,
+                struct nfs4_label *label)
+{
+        struct rpc_clnt *clnt = NFS_CLIENT(inode);
+        struct nfs_server *server = NFS_SERVER(inode);
+        int                    status;
+        struct nfs4_lookupp_arg args = {
+                .bitmask = server->attr_bitmask,
+                .fh = NFS_FH(inode),
+        };
+        struct nfs4_lookupp_res res = {
+                .server = server,
+                .fattr = fattr,
+                .label = label,
+                .fh = fhandle,
+        };
+        struct rpc_message msg = {
+                .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LOOKUPP],
+                .rpc_argp = &args,
+                .rpc_resp = &res,
+        };
+
+        args.bitmask = nfs4_bitmask(server, label);
+
+        nfs_fattr_init(fattr);
+
+        dprintk("NFS call  lookupp ino=0x%lx\n", inode->i_ino);
+        status = nfs4_call_sync(clnt, server, &msg, &args.seq_args,
+                                &res.seq_res, 0);
+        dprintk("NFS reply lookupp: %d\n", status);
+        return status;
+}
+
+static int nfs4_proc_lookupp(struct inode *inode, struct nfs_fh *fhandle,
+                             struct nfs_fattr *fattr, struct nfs4_label *label)
+{
+        struct nfs4_exception exception = { };
+        int err;
+        do {
+                err = _nfs4_proc_lookupp(inode, fhandle, fattr, label);
+                trace_nfs4_lookupp(inode, err);
+                err = nfs4_handle_exception(NFS_SERVER(inode), err,
+                                &exception);
+        } while (exception.retry);
+        return err;
+}
+
 static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry)
 {
         struct nfs_server *server = NFS_SERVER(inode);
@@ -9314,6 +9362,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
         .getattr        = nfs4_proc_getattr,
         .setattr        = nfs4_proc_setattr,
         .lookup         = nfs4_proc_lookup,
+        .lookupp        = nfs4_proc_lookupp,
         .access         = nfs4_proc_access,
         .readlink       = nfs4_proc_readlink,
         .create         = nfs4_proc_create,