lockdestroy
lockdestroy(&pmp->pm_fatlock);
lockdestroy(&pmp->pm_fatlock);
lockdestroy(&np->n_excl);
lockdestroy(&np->n_excl);
lockdestroy(&np->n_excl);
lockdestroy(&NFSD_VNET(nfsv4root_mnt)->mnt_explock);
lockdestroy(&mp->mnt_renamelock);
lockdestroy(&mp->mnt_explock);
lockdestroy(vp->v_vnlock);
lockdestroy(&(bp)->b_lock)
void lockdestroy(struct lock *lk);