574 	struct flush_cmd_control *fcc = SM_I(sbi)->fcc_info;  in issue_flush_thread()  local
575 	wait_queue_head_t *q = &fcc->flush_wait_queue;  in issue_flush_thread()
582 	if (!llist_empty(&fcc->issue_list)) {  in issue_flush_thread()
586 		fcc->dispatch_list = llist_del_all(&fcc->issue_list);  in issue_flush_thread()
587 		fcc->dispatch_list = llist_reverse_order(fcc->dispatch_list);  in issue_flush_thread()
589 		cmd = llist_entry(fcc->dispatch_list, struct flush_cmd, llnode);  in issue_flush_thread()
592 		atomic_inc(&fcc->issued_flush);  in issue_flush_thread()
595 					  fcc->dispatch_list, llnode) {  in issue_flush_thread()
599 		fcc->dispatch_list = NULL;  in issue_flush_thread()
605 		kthread_should_stop() || !llist_empty(&fcc->issue_list));  in issue_flush_thread()
611 	struct flush_cmd_control *fcc = SM_I(sbi)->fcc_info;  in f2fs_issue_flush()  local
620 		atomic_inc(&fcc->issued_flush);  in f2fs_issue_flush()
624 	if (atomic_inc_return(&fcc->issing_flush) == 1 || sbi->s_ndevs > 1) {  in f2fs_issue_flush()
626 		atomic_dec(&fcc->issing_flush);  in f2fs_issue_flush()
628 		atomic_inc(&fcc->issued_flush);  in f2fs_issue_flush()
635 	llist_add(&cmd.llnode, &fcc->issue_list);  in f2fs_issue_flush()
640 	if (waitqueue_active(&fcc->flush_wait_queue))  in f2fs_issue_flush()
641 		wake_up(&fcc->flush_wait_queue);  in f2fs_issue_flush()
643 	if (fcc->f2fs_issue_flush) {  in f2fs_issue_flush()
645 		atomic_dec(&fcc->issing_flush);  in f2fs_issue_flush()
649 		list = llist_del_all(&fcc->issue_list);  in f2fs_issue_flush()
652 			atomic_dec(&fcc->issing_flush);  in f2fs_issue_flush()
661 					atomic_dec(&fcc->issing_flush);  in f2fs_issue_flush()
676 	struct flush_cmd_control *fcc;  in f2fs_create_flush_cmd_control()  local
680 		fcc = SM_I(sbi)->fcc_info;  in f2fs_create_flush_cmd_control()
681 		if (fcc->f2fs_issue_flush)  in f2fs_create_flush_cmd_control()
686 	fcc = f2fs_kzalloc(sbi, sizeof(struct flush_cmd_control), GFP_KERNEL);  in f2fs_create_flush_cmd_control()
687 	if (!fcc)  in f2fs_create_flush_cmd_control()
689 	atomic_set(&fcc->issued_flush, 0);  in f2fs_create_flush_cmd_control()
690 	atomic_set(&fcc->issing_flush, 0);  in f2fs_create_flush_cmd_control()
691 	init_waitqueue_head(&fcc->flush_wait_queue);  in f2fs_create_flush_cmd_control()
692 	init_llist_head(&fcc->issue_list);  in f2fs_create_flush_cmd_control()
693 	SM_I(sbi)->fcc_info = fcc;  in f2fs_create_flush_cmd_control()
698 	fcc->f2fs_issue_flush = kthread_run(issue_flush_thread, sbi,  in f2fs_create_flush_cmd_control()
700 	if (IS_ERR(fcc->f2fs_issue_flush)) {  in f2fs_create_flush_cmd_control()
701 		err = PTR_ERR(fcc->f2fs_issue_flush);  in f2fs_create_flush_cmd_control()
702 		kfree(fcc);  in f2fs_create_flush_cmd_control()
712 	struct flush_cmd_control *fcc = SM_I(sbi)->fcc_info;  in f2fs_destroy_flush_cmd_control()  local
714 	if (fcc && fcc->f2fs_issue_flush) {  in f2fs_destroy_flush_cmd_control()
715 		struct task_struct *flush_thread = fcc->f2fs_issue_flush;  in f2fs_destroy_flush_cmd_control()
717 		fcc->f2fs_issue_flush = NULL;  in f2fs_destroy_flush_cmd_control()
721 		kfree(fcc);  in f2fs_destroy_flush_cmd_control()