997 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __create_discard_cmd()  local
1003 	pend_list = &dcc->pend_list[plist_idx(len)];  in __create_discard_cmd()
1019 	atomic_inc(&dcc->discard_cmd_cnt);  in __create_discard_cmd()
1020 	dcc->undiscard_blks += len;  in __create_discard_cmd()
1031 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __attach_discard_cmd()  local
1037 	rb_insert_color_cached(&dc->rb_node, &dcc->root, leftmost);  in __attach_discard_cmd()
1042 static void __detach_discard_cmd(struct discard_cmd_control *dcc,  in __detach_discard_cmd()  argument
1046 		atomic_sub(dc->queued, &dcc->queued_discard);  in __detach_discard_cmd()
1049 	rb_erase_cached(&dc->rb_node, &dcc->root);  in __detach_discard_cmd()
1050 	dcc->undiscard_blks -= dc->len;  in __detach_discard_cmd()
1054 	atomic_dec(&dcc->discard_cmd_cnt);  in __detach_discard_cmd()
1060 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __remove_discard_cmd()  local
1082 	__detach_discard_cmd(dcc, dc);  in __remove_discard_cmd()
1133 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __init_discard_policy()  local
1154 			if (atomic_read(&dcc->discard_cmd_cnt))  in __init_discard_policy()
1186 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __submit_discard_cmd()  local
1188 					&(dcc->fstrim_list) : &(dcc->wait_list);  in __submit_discard_cmd()
1257 		atomic_inc(&dcc->queued_discard);  in __submit_discard_cmd()
1269 		atomic_inc(&dcc->issued_discard);  in __submit_discard_cmd()
1280 		dcc->undiscard_blks -= len;  in __submit_discard_cmd()
1292 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __insert_discard_tree()  local
1303 	p = f2fs_lookup_rb_tree_for_insert(sbi, &dcc->root, &parent,  in __insert_discard_tree()
1310 static void __relocate_discard_cmd(struct discard_cmd_control *dcc,  in __relocate_discard_cmd()  argument
1313 	list_move_tail(&dc->list, &dcc->pend_list[plist_idx(dc->len)]);  in __relocate_discard_cmd()
1319 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __punch_discard_cmd()  local
1328 	dcc->undiscard_blks -= di.len;  in __punch_discard_cmd()
1332 		dcc->undiscard_blks += dc->len;  in __punch_discard_cmd()
1333 		__relocate_discard_cmd(dcc, dc);  in __punch_discard_cmd()
1347 			dcc->undiscard_blks += dc->len;  in __punch_discard_cmd()
1348 			__relocate_discard_cmd(dcc, dc);  in __punch_discard_cmd()
1357 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __update_discard_tree_range()  local
1367 	dc = (struct discard_cmd *)f2fs_lookup_rb_tree_ret(&dcc->root,  in __update_discard_tree_range()
1409 			dcc->undiscard_blks += di.len;  in __update_discard_tree_range()
1410 			__relocate_discard_cmd(dcc, prev_dc);  in __update_discard_tree_range()
1423 			dcc->undiscard_blks += di.len;  in __update_discard_tree_range()
1424 			__relocate_discard_cmd(dcc, next_dc);  in __update_discard_tree_range()
1468 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __issue_discard_cmd_orderly()  local
1473 	unsigned int pos = dcc->next_pos;  in __issue_discard_cmd_orderly()
1477 	mutex_lock(&dcc->cmd_lock);  in __issue_discard_cmd_orderly()
1478 	dc = (struct discard_cmd *)f2fs_lookup_rb_tree_ret(&dcc->root,  in __issue_discard_cmd_orderly()
1500 		dcc->next_pos = dc->lstart + dc->len;  in __issue_discard_cmd_orderly()
1515 		dcc->next_pos = 0;  in __issue_discard_cmd_orderly()
1517 	mutex_unlock(&dcc->cmd_lock);  in __issue_discard_cmd_orderly()
1530 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __issue_discard_cmd()  local
1553 		pend_list = &dcc->pend_list[i];  in __issue_discard_cmd()
1555 		mutex_lock(&dcc->cmd_lock);  in __issue_discard_cmd()
1558 		if (unlikely(dcc->rbtree_check))  in __issue_discard_cmd()
1560 							&dcc->root, false));  in __issue_discard_cmd()
1582 		mutex_unlock(&dcc->cmd_lock);  in __issue_discard_cmd()
1601 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __drop_discard_cmd()  local
1607 	mutex_lock(&dcc->cmd_lock);  in __drop_discard_cmd()
1609 		pend_list = &dcc->pend_list[i];  in __drop_discard_cmd()
1616 	mutex_unlock(&dcc->cmd_lock);  in __drop_discard_cmd()
1629 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __wait_one_discard_bio()  local
1633 	mutex_lock(&dcc->cmd_lock);  in __wait_one_discard_bio()
1641 	mutex_unlock(&dcc->cmd_lock);  in __wait_one_discard_bio()
1650 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __wait_discard_cmd_range()  local
1652 					&(dcc->fstrim_list) : &(dcc->wait_list);  in __wait_discard_cmd_range()
1660 	mutex_lock(&dcc->cmd_lock);  in __wait_discard_cmd_range()
1677 	mutex_unlock(&dcc->cmd_lock);  in __wait_discard_cmd_range()
1708 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in f2fs_wait_discard_bio()  local
1712 	mutex_lock(&dcc->cmd_lock);  in f2fs_wait_discard_bio()
1713 	dc = (struct discard_cmd *)f2fs_lookup_rb_tree(&dcc->root,  in f2fs_wait_discard_bio()
1723 	mutex_unlock(&dcc->cmd_lock);  in f2fs_wait_discard_bio()
1731 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in f2fs_stop_discard_thread()  local
1733 	if (dcc && dcc->f2fs_issue_discard) {  in f2fs_stop_discard_thread()
1734 		struct task_struct *discard_thread = dcc->f2fs_issue_discard;  in f2fs_stop_discard_thread()
1736 		dcc->f2fs_issue_discard = NULL;  in f2fs_stop_discard_thread()
1744 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in f2fs_issue_discard_timeout()  local
1749 					dcc->discard_granularity);  in f2fs_issue_discard_timeout()
1756 	f2fs_bug_on(sbi, atomic_read(&dcc->discard_cmd_cnt));  in f2fs_issue_discard_timeout()
1763 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in issue_discard_thread()  local
1764 	wait_queue_head_t *q = &dcc->discard_wait_queue;  in issue_discard_thread()
1777 						dcc->discard_granularity);  in issue_discard_thread()
1779 		if (!atomic_read(&dcc->discard_cmd_cnt))  in issue_discard_thread()
1784 				dcc->discard_wake,  in issue_discard_thread()
1787 		if (dcc->discard_wake)  in issue_discard_thread()
1788 			dcc->discard_wake = 0;  in issue_discard_thread()
1791 		if (atomic_read(&dcc->queued_discard))  in issue_discard_thread()
1804 		if (!atomic_read(&dcc->discard_cmd_cnt))  in issue_discard_thread()
2010 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in f2fs_clear_prefree_segments()  local
2011 	struct list_head *head = &dcc->entry_list;  in f2fs_clear_prefree_segments()
2101 		dcc->nr_discards -= total_len;  in f2fs_clear_prefree_segments()
2110 	struct discard_cmd_control *dcc;  in create_discard_cmd_control()  local
2114 		dcc = SM_I(sbi)->dcc_info;  in create_discard_cmd_control()
2118 	dcc = f2fs_kzalloc(sbi, sizeof(struct discard_cmd_control), GFP_KERNEL);  in create_discard_cmd_control()
2119 	if (!dcc)  in create_discard_cmd_control()
2122 	dcc->discard_granularity = DEFAULT_DISCARD_GRANULARITY;  in create_discard_cmd_control()
2123 	INIT_LIST_HEAD(&dcc->entry_list);  in create_discard_cmd_control()
2125 		INIT_LIST_HEAD(&dcc->pend_list[i]);  in create_discard_cmd_control()
2126 	INIT_LIST_HEAD(&dcc->wait_list);  in create_discard_cmd_control()
2127 	INIT_LIST_HEAD(&dcc->fstrim_list);  in create_discard_cmd_control()
2128 	mutex_init(&dcc->cmd_lock);  in create_discard_cmd_control()
2129 	atomic_set(&dcc->issued_discard, 0);  in create_discard_cmd_control()
2130 	atomic_set(&dcc->queued_discard, 0);  in create_discard_cmd_control()
2131 	atomic_set(&dcc->discard_cmd_cnt, 0);  in create_discard_cmd_control()
2132 	dcc->nr_discards = 0;  in create_discard_cmd_control()
2133 	dcc->max_discards = MAIN_SEGS(sbi) << sbi->log_blocks_per_seg;  in create_discard_cmd_control()
2134 	dcc->undiscard_blks = 0;  in create_discard_cmd_control()
2135 	dcc->next_pos = 0;  in create_discard_cmd_control()
2136 	dcc->root = RB_ROOT_CACHED;  in create_discard_cmd_control()
2137 	dcc->rbtree_check = false;  in create_discard_cmd_control()
2139 	init_waitqueue_head(&dcc->discard_wait_queue);  in create_discard_cmd_control()
2140 	SM_I(sbi)->dcc_info = dcc;  in create_discard_cmd_control()
2142 	dcc->f2fs_issue_discard = kthread_run(issue_discard_thread, sbi,  in create_discard_cmd_control()
2144 	if (IS_ERR(dcc->f2fs_issue_discard)) {  in create_discard_cmd_control()
2145 		err = PTR_ERR(dcc->f2fs_issue_discard);  in create_discard_cmd_control()
2146 		kfree(dcc);  in create_discard_cmd_control()
2156 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in destroy_discard_cmd_control()  local
2158 	if (!dcc)  in destroy_discard_cmd_control()
2167 	if (unlikely(atomic_read(&dcc->discard_cmd_cnt)))  in destroy_discard_cmd_control()
2170 	kfree(dcc);  in destroy_discard_cmd_control()
3024 	struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;  in __issue_discard_cmd_range()  local
3035 	mutex_lock(&dcc->cmd_lock);  in __issue_discard_cmd_range()
3036 	if (unlikely(dcc->rbtree_check))  in __issue_discard_cmd_range()
3038 							&dcc->root, false));  in __issue_discard_cmd_range()
3040 	dc = (struct discard_cmd *)f2fs_lookup_rb_tree_ret(&dcc->root,  in __issue_discard_cmd_range()
3058 			list_move_tail(&dc->list, &dcc->fstrim_list);  in __issue_discard_cmd_range()
3071 			mutex_unlock(&dcc->cmd_lock);  in __issue_discard_cmd_range()
3087 	mutex_unlock(&dcc->cmd_lock);  in __issue_discard_cmd_range()