taglinefilesource code
rblocks166fs/block_dev.cunsigned int blocks, rblocks, left;
rblocks213fs/block_dev.crblocks = blocks = (left + offset + blocksize - 1) >> blocksize_bits;
rblocks221fs/block_dev.cif (rblocks > blocks)
rblocks222fs/block_dev.cblocks = rblocks;