That's already being taken care of in pnfs_layout_remove_lseg().
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
                NFS_SERVER(ino)->pnfs_curr_ld->return_range(lo,
                        &args->cbl_range);
        }
-       pnfs_mark_layout_returned_if_empty(lo);
 unlock:
        spin_unlock(&ino->i_lock);
        pnfs_free_lseg_list(&free_me_list);
 
        spin_lock(&lo->plh_inode->i_lock);
        pnfs_mark_matching_lsegs_invalid(lo, &freeme, &lrp->args.range,
                        be32_to_cpu(lrp->args.stateid.seqid));
-       pnfs_mark_layout_returned_if_empty(lo);
        if (lrp->res.lrs_present && pnfs_layout_is_valid(lo))
                pnfs_set_layout_stateid(lo, &lrp->res.stateid, true);
        pnfs_clear_layoutreturn_waitbit(lo);
 
 
        spin_lock(&ino->i_lock);
        lo = NFS_I(ino)->layout;
-       pnfs_mark_layout_returned_if_empty(lo);
        if (pnfs_seqid_is_newer(barrier, lo->plh_barrier))
                lo->plh_barrier = barrier;
        spin_unlock(&ino->i_lock);
 
        return 1 + end - offset;
 }
 
-/**
- * pnfs_mark_layout_returned_if_empty - marks the layout as returned
- * @lo: layout header
- *
- * Note: Caller must hold inode->i_lock
- */
-static inline void
-pnfs_mark_layout_returned_if_empty(struct pnfs_layout_hdr *lo)
-{
-       if (list_empty(&lo->plh_segs))
-               set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
-}
-
 static inline void
 pnfs_copy_range(struct pnfs_layout_range *dst,
                const struct pnfs_layout_range *src)