447 	spin_lock(&sbi->hsi.list_lock);  in hmdfs_sync_fs()
448 	if (!sbi->hsi.is_executing) {  in hmdfs_sync_fs()
449 		sbi->hsi.is_executing = true;  in hmdfs_sync_fs()
451 		spin_unlock(&sbi->hsi.list_lock);  in hmdfs_sync_fs()
454 		list_add_tail(&item.list, &sbi->hsi.wait_list);  in hmdfs_sync_fs()
455 		spin_unlock(&sbi->hsi.list_lock);  in hmdfs_sync_fs()
469 	spin_lock(&sbi->hsi.v_lock);  in hmdfs_sync_fs()
470 	sbi->hsi.version++;  in hmdfs_sync_fs()
472 	 * Attention: We put @sbi->hsi.remote_ret and @sbi->hsi.wait_count  in hmdfs_sync_fs()
477 	 *  sbi->hsi.remote_ret = 0;  in hmdfs_sync_fs()
478 	 *  atomic_set(&sbi->hsi.wait_count, 0);  in hmdfs_sync_fs()
481 	 *                                 sbi->hsi.remote_ret = resp->ret_code  in hmdfs_sync_fs()
482 	 *                                 atomic_dec(&sbi->hsi.wait_count);  in hmdfs_sync_fs()
488 	 * @sbi->hsi.remote_ret and @sbi->hsi.wait_count can be assigned  in hmdfs_sync_fs()
492 	sbi->hsi.remote_ret = 0;  in hmdfs_sync_fs()
493 	atomic_set(&sbi->hsi.wait_count, 0);  in hmdfs_sync_fs()
494 	spin_unlock(&sbi->hsi.v_lock);  in hmdfs_sync_fs()
530 			sbi->hsi.remote_ret = err;  in hmdfs_sync_fs()
536 		atomic_inc(&sbi->hsi.wait_count);  in hmdfs_sync_fs()
548 		sbi->hsi.wq, atomic_read(&sbi->hsi.wait_count) == 0);  in hmdfs_sync_fs()
554 	if (!err && sbi->hsi.remote_ret)  in hmdfs_sync_fs()
555 		err = sbi->hsi.remote_ret;  in hmdfs_sync_fs()
558 	list_for_each_entry_safe(entry, tmp, &sbi->hsi.pending_list, list) {  in hmdfs_sync_fs()
562 	INIT_LIST_HEAD(&sbi->hsi.pending_list);  in hmdfs_sync_fs()
565 	spin_lock(&sbi->hsi.list_lock);  in hmdfs_sync_fs()
566 	if (list_empty(&sbi->hsi.wait_list)) {  in hmdfs_sync_fs()
567 		sbi->hsi.is_executing = false;  in hmdfs_sync_fs()
569 		entry = list_last_entry(&sbi->hsi.wait_list, struct syncfs_item,  in hmdfs_sync_fs()
572 		list_splice_init(&sbi->hsi.wait_list, &sbi->hsi.pending_list);  in hmdfs_sync_fs()
576 	spin_unlock(&sbi->hsi.list_lock);  in hmdfs_sync_fs()
579 	trace_hmdfs_syncfs_exit(sbi, atomic_read(&sbi->hsi.wait_count),  in hmdfs_sync_fs()
963 	spin_lock_init(&sbi->hsi.v_lock);  in hmdfs_fill_super()
964 	init_waitqueue_head(&sbi->hsi.wq);  in hmdfs_fill_super()
965 	sbi->hsi.version = 0;  in hmdfs_fill_super()
966 	sbi->hsi.is_executing = false;  in hmdfs_fill_super()
967 	INIT_LIST_HEAD(&sbi->hsi.wait_list);  in hmdfs_fill_super()
968 	INIT_LIST_HEAD(&sbi->hsi.pending_list);  in hmdfs_fill_super()
969 	spin_lock_init(&sbi->hsi.list_lock);  in hmdfs_fill_super()