__bread(9)
NAME
__bread - reads a specified block and returns the bh
SYNOPSIS
struct buffer_head * __bread(struct block_device * bdev,
sector_t block, unsigned size);
ARGUMENTS
- bdev
- the block_device to read from
- block
- number of block
- size
- size (in bytes) to read
DESCRIPTION
Reads a specified block, and returns buffer head that contains it. It
returns NULL if the block was unreadable.