1554 	struct pool_c *pt = container_of(cb, struct pool_c, callbacks);  in pool_is_congested()  local
1556 	spin_lock_irqsave(&pt->pool->lock, flags);  in pool_is_congested()
1557 	r = !bio_list_empty(&pt->pool->retry_on_resume_list);  in pool_is_congested()
1558 	spin_unlock_irqrestore(&pt->pool->lock, flags);  in pool_is_congested()
1561 		struct request_queue *q = bdev_get_queue(pt->data_dev->bdev);  in pool_is_congested()
1577 static bool data_dev_supports_discard(struct pool_c *pt)  in data_dev_supports_discard()  argument
1579 	struct request_queue *q = bdev_get_queue(pt->data_dev->bdev);  in data_dev_supports_discard()
1593 static void disable_passdown_if_not_supported(struct pool_c *pt)  in disable_passdown_if_not_supported()  argument
1595 	struct pool *pool = pt->pool;  in disable_passdown_if_not_supported()
1596 	struct block_device *data_bdev = pt->data_dev->bdev;  in disable_passdown_if_not_supported()
1602 	if (!pt->adjusted_pf.discard_passdown)  in disable_passdown_if_not_supported()
1605 	if (!data_dev_supports_discard(pt))  in disable_passdown_if_not_supported()
1619 		pt->adjusted_pf.discard_passdown = false;  in disable_passdown_if_not_supported()
1625 	struct pool_c *pt = ti->private;  in bind_control_target()  local
1631 	enum pool_mode new_mode = pt->adjusted_pf.mode;  in bind_control_target()
1637 	pool->low_water_blocks = pt->low_water_blocks;  in bind_control_target()
1638 	pool->pf = pt->adjusted_pf;  in bind_control_target()
1856 	struct pool_c *pt = ti->private;  in pool_dtr()  local
1860 	unbind_control_target(pt->pool, ti);  in pool_dtr()
1861 	__pool_dec(pt->pool);  in pool_dtr()
1862 	dm_put_device(ti, pt->metadata_dev);  in pool_dtr()
1863 	dm_put_device(ti, pt->data_dev);  in pool_dtr()
1864 	kfree(pt);  in pool_dtr()
1955 static dm_block_t calc_metadata_threshold(struct pool_c *pt)  in calc_metadata_threshold()  argument
1962 	dm_block_t quarter = get_metadata_dev_size_in_blocks(pt->metadata_dev->bdev) / 4;  in calc_metadata_threshold()
1980 	struct pool_c *pt;  in pool_ctr()  local
2048 	pt = kzalloc(sizeof(*pt), GFP_KERNEL);  in pool_ctr()
2049 	if (!pt) {  in pool_ctr()
2073 	pt->pool = pool;  in pool_ctr()
2074 	pt->ti = ti;  in pool_ctr()
2075 	pt->metadata_dev = metadata_dev;  in pool_ctr()
2076 	pt->data_dev = data_dev;  in pool_ctr()
2077 	pt->low_water_blocks = low_water_blocks;  in pool_ctr()
2078 	pt->adjusted_pf = pt->requested_pf = pf;  in pool_ctr()
2097 	ti->private = pt;  in pool_ctr()
2099 	r = dm_pool_register_metadata_threshold(pt->pool->pmd,  in pool_ctr()
2100 						calc_metadata_threshold(pt),  in pool_ctr()
2106 	pt->callbacks.congested_fn = pool_is_congested;  in pool_ctr()
2107 	dm_table_add_target_callbacks(ti->table, &pt->callbacks);  in pool_ctr()
2116 	kfree(pt);  in pool_ctr()
2130 	struct pool_c *pt = ti->private;  in pool_map()  local
2131 	struct pool *pool = pt->pool;  in pool_map()
2138 	bio->bi_bdev = pt->data_dev->bdev;  in pool_map()
2148 	struct pool_c *pt = ti->private;  in maybe_resize_data_dev()  local
2149 	struct pool *pool = pt->pool;  in maybe_resize_data_dev()
2185 	struct pool_c *pt = ti->private;  in maybe_resize_metadata_dev()  local
2186 	struct pool *pool = pt->pool;  in maybe_resize_metadata_dev()
2232 	struct pool_c *pt = ti->private;  in pool_preresume()  local
2233 	struct pool *pool = pt->pool;  in pool_preresume()
2258 	struct pool_c *pt = ti->private;  in pool_resume()  local
2259 	struct pool *pool = pt->pool;  in pool_resume()
2273 	struct pool_c *pt = ti->private;  in pool_postsuspend()  local
2274 	struct pool *pool = pt->pool;  in pool_postsuspend()
2449 	struct pool_c *pt = ti->private;  in pool_message()  local
2450 	struct pool *pool = pt->pool;  in pool_message()
2517 	struct pool_c *pt = ti->private;  in pool_status()  local
2518 	struct pool *pool = pt->pool;  in pool_status()
2595 		       format_dev_t(buf, pt->metadata_dev->bdev->bd_dev),  in pool_status()
2596 		       format_dev_t(buf2, pt->data_dev->bdev->bd_dev),  in pool_status()
2598 		       (unsigned long long)pt->low_water_blocks);  in pool_status()
2599 		emit_flags(&pt->requested_pf, result, sz, maxlen);  in pool_status()
2611 	struct pool_c *pt = ti->private;  in pool_iterate_devices()  local
2613 	return fn(ti, pt->data_dev, 0, ti->len, data);  in pool_iterate_devices()
2619 	struct pool_c *pt = ti->private;  in pool_merge()  local
2620 	struct request_queue *q = bdev_get_queue(pt->data_dev->bdev);  in pool_merge()
2625 	bvm->bi_bdev = pt->data_dev->bdev;  in pool_merge()
2630 static void set_discard_limits(struct pool_c *pt, struct queue_limits *limits)  in set_discard_limits()  argument
2632 	struct pool *pool = pt->pool;  in set_discard_limits()
2640 	if (pt->adjusted_pf.discard_passdown) {  in set_discard_limits()
2641 		data_limits = &bdev_get_queue(pt->data_dev->bdev)->limits;  in set_discard_limits()
2649 	struct pool_c *pt = ti->private;  in pool_io_hints()  local
2650 	struct pool *pool = pt->pool;  in pool_io_hints()
2660 	if (!pt->adjusted_pf.discard_enabled)  in pool_io_hints()
2663 	disable_passdown_if_not_supported(pt);  in pool_io_hints()
2665 	set_discard_limits(pt, limits);  in pool_io_hints()