lockref_mark_dead
lockref_mark_dead(&dentry->d_lockref);
lockref_mark_dead(&pcl->lockref);
lockref_mark_dead(&gl->gl_lockref);
lockref_mark_dead(&qd->qd_lockref);
lockref_mark_dead(&qd->qd_lockref);
lockref_mark_dead(&qd->qd_lockref);
lockref_mark_dead(&dqp->q_lockref);
lockref_mark_dead(&dqp->q_lockref);
void lockref_mark_dead(struct lockref *lockref);
EXPORT_SYMBOL(lockref_mark_dead);