1 #include <linux/buffer_head.h>
4 enum {DEPTH = 3, DIRECT = 7}; /* Only double indirect */
6 typedef u16 block_t; /* 16 bit, host order */
8 static inline unsigned long block_to_cpu(block_t n)
13 static inline block_t cpu_to_block(unsigned long n)
18 static inline block_t *i_data(struct inode *inode)
20 return (block_t *)minix_i(inode)->u.i1_data;
23 static int block_to_path(struct inode * inode, long block, int offsets[DEPTH])
28 printk("minix_bmap: block<0\n");
29 } else if (block >= (minix_sb(inode->i_sb)->s_max_size/BLOCK_SIZE)) {
30 printk("minix_bmap: block>big\n");
31 } else if (block < 7) {
33 } else if ((block -= 7) < 512) {
39 offsets[n++] = block>>9;
40 offsets[n++] = block & 511;
45 #include "itree_common.c"
47 int V1_minix_get_block(struct inode * inode, long block,
48 struct buffer_head *bh_result, int create)
50 return get_block(inode, block, bh_result, create);
53 void V1_minix_truncate(struct inode * inode)
58 unsigned V1_minix_blocks(loff_t size, struct super_block *sb)
60 return nblocks(size, sb);