nfs4_pnfs_ds_add
dsaddr->ds_list[i] = nfs4_pnfs_ds_add(net, &dsaddrs, gfp_flags);
new_ds->ds = nfs4_pnfs_ds_add(net, &dsaddrs, gfp_flags);
struct nfs4_pnfs_ds *nfs4_pnfs_ds_add(const struct net *net,
EXPORT_SYMBOL_GPL(nfs4_pnfs_ds_add);