minix_free_block
minix_free_block(inode, block_to_cpu(branch[i].key));
minix_free_block(inode, block_to_cpu(where[i].key));
minix_free_block(inode, nr);
minix_free_block(inode, nr);
minix_free_block(inode, nr);
void minix_free_block(struct inode *inode, unsigned long block);