static int
read_disk_block( struct boot_file_t *file, __u32 block, __u32 start,
__u32 length, void *buf )
{
__u16 fs_blocksize = INFO->blocksize == 0 ? REISERFS_OLD_BLOCKSIZE
: INFO->blocksize;
unsigned long long pos = (unsigned long long)block * (unsigned long long)fs_blocksize;
pos += (unsigned long long)INFO->partition_offset + (unsigned long long)start;
DEBUG_F( "Reading %u bytes, starting at block %u, disk offset %Lu\n",
length, block, pos );
if (!prom_lseek( file->of_device, pos )) {
DEBUG_F("prom_lseek failed\n");
return 0;
}
return prom_read( file->of_device, buf, length );
}
int lseek(int fd, int offset, int whence) {
// XXX: This whence addition seems wrong ..
return prom_lseek((void *)fd, whence + offset);
}
