taglinefilesource code
real_block154drivers/block/loop.cint  real_block, block, offset, len, blksize, size;
real_block195drivers/block/loop.creal_block = block;
real_block197drivers/block/loop.creal_block = bmap(lo->lo_inode, block);
real_block198drivers/block/loop.cif (!real_block) {
real_block203drivers/block/loop.cbh = getblk(lo->lo_device, real_block, blksize);