|BMAP(9)||The Linux VFS||BMAP(9)|
bmap - find a block number in a file
sector_t bmap(struct inode * inode, sector_t block);
Returns the block number on the device holding the inode that is the disk block number for the block of the file requested. That is, asked for block 4 of inode 1 the function will return the disk block relative to the disk start that holds that block of the file.
|January 2017||Kernel Hackers Manual 4.8.|