dm_pool_dec_data_range  201 drivers/md/dm-thin-metadata.h int dm_pool_dec_data_range(struct dm_pool_metadata *pmd, dm_block_t b, dm_block_t e);
dm_pool_dec_data_range 1216 drivers/md/dm-thin.c 	r = dm_pool_dec_data_range(pool->pmd, m->data_block,