cond_resched_lock
cond_resched_lock(&vc->lock);
if (cond_resched_lock(&obj->lut_lock))
cond_resched_lock(&tree->lock);
if (!cond_resched_lock(&tree->lock)) {
cond_resched_lock(&ctl->tree_lock);
cond_resched_lock(&ctl->tree_lock);
cond_resched_lock(&ctl->tree_lock);
cond_resched_lock(&root->delalloc_lock);
cond_resched_lock(&root->ordered_extent_lock);
cond_resched_lock(&fs_info->ref_verify_lock);
cond_resched_lock(&lru_lock);
cond_resched_lock(&journal->j_list_lock);
cond_resched_lock(&dlm->spinlock);
cond_resched_lock(&dlm->spinlock);
cond_resched_lock(&dlm->spinlock);
cond_resched_lock(&zi->zi_open_zones_lock);
cond_resched_lock(&zi->zi_open_zones_lock);
cond_resched_lock(&xprt->queue_lock);