drivers/md/dm-thin.c

2530 	struct pool_c *pt = pool->ti->private;
2532 	if (pt->adjusted_pf.discard_passdown) {
2544 	struct pool_c *pt = pool->ti->private;
2619 		pool->pf.error_if_no_space = pt->requested_pf.error_if_no_space;
2634 	pt->adjusted_pf.mode = new_mode;
2841 static void disable_discard_passdown_if_not_supported(struct pool_c *pt)
2843 	struct pool *pool = pt->pool;
2844 	struct block_device *data_bdev = pt->data_dev->bdev;
2848 	if (!pt->adjusted_pf.discard_passdown)
2851 	if (!bdev_max_discard_sectors(pt->data_dev->bdev))
2859 		pt->adjusted_pf.discard_passdown = false;
2865 	struct pool_c *pt = ti->private;
2871 	enum pool_mode new_mode = pt->adjusted_pf.mode;
2878 	pt->adjusted_pf.mode = old_mode;
2881 	pool->pf = pt->adjusted_pf;
2882 	pool->low_water_blocks = pt->low_water_blocks;
3130 	struct pool_c *pt = ti->private;
3134 	unbind_control_target(pt->pool, ti);
3135 	__pool_dec(pt->pool);
3136 	dm_put_device(ti, pt->metadata_dev);
3137 	dm_put_device(ti, pt->data_dev);
3138 	kfree(pt);
3260 static dm_block_t calc_metadata_threshold(struct pool_c *pt)
3267 	dm_block_t quarter = get_metadata_dev_size_in_blocks(pt->metadata_dev->bdev) / 4;
3288 	struct pool_c *pt;
3359 	pt = kzalloc(sizeof(*pt), GFP_KERNEL);
3360 	if (!pt) {
3384 	pt->pool = pool;
3385 	pt->ti = ti;
3386 	pt->metadata_dev = metadata_dev;
3387 	pt->data_dev = data_dev;
3388 	pt->low_water_blocks = low_water_blocks;
3389 	pt->adjusted_pf = pt->requested_pf = pf;
3408 	ti->private = pt;
3410 	r = dm_pool_register_metadata_threshold(pt->pool->pmd,
3411 						calc_metadata_threshold(pt),
3429 	kfree(pt);
3442 	struct pool_c *pt = ti->private;
3443 	struct pool *pool = pt->pool;
3449 	bio_set_dev(bio, pt->data_dev->bdev);
3458 	struct pool_c *pt = ti->private;
3459 	struct pool *pool = pt->pool;
3506 	struct pool_c *pt = ti->private;
3507 	struct pool *pool = pt->pool;
3569 	struct pool_c *pt = ti->private;
3570 	struct pool *pool = pt->pool;
3627 	struct pool_c *pt = ti->private;
3628 	struct pool *pool = pt->pool;
3647 	struct pool_c *pt = ti->private;
3648 	struct pool *pool = pt->pool;
3659 	struct pool_c *pt = ti->private;
3660 	struct pool *pool = pt->pool;
3671 	struct pool_c *pt = ti->private;
3672 	struct pool *pool = pt->pool;
3848 	struct pool_c *pt = ti->private;
3849 	struct pool *pool = pt->pool;
3928 	struct pool_c *pt = ti->private;
3929 	struct pool *pool = pt->pool;
4021 		DMEMIT("%llu ", (unsigned long long)calc_metadata_threshold(pt));
4027 		       format_dev_t(buf, pt->metadata_dev->bdev->bd_dev),
4028 		       format_dev_t(buf2, pt->data_dev->bdev->bd_dev),
4030 		       (unsigned long long)pt->low_water_blocks);
4031 		emit_flags(&pt->requested_pf, result, sz, maxlen);
4047 	struct pool_c *pt = ti->private;
4049 	return fn(ti, pt->data_dev, 0, ti->len, data);
4054 	struct pool_c *pt = ti->private;
4055 	struct pool *pool = pt->pool;
4089 	 * pt->adjusted_pf is a staging area for the actual features to use.
4094 	if (pt->adjusted_pf.discard_enabled) {
4095 		disable_discard_passdown_if_not_supported(pt);
4096 		if (!pt->adjusted_pf.discard_passdown)