1 #include <linux/buffer_head.h>
4 enum {DIRECT = 7, DEPTH = 4}; /* Have triple indirect */
6 typedef u32 block_t; /* 32 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.i2_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) < 256) {
36 } else if ((block -= 256) < 256*256) {
38 offsets[n++] = block>>8;
39 offsets[n++] = block & 255;
43 offsets[n++] = block>>16;
44 offsets[n++] = (block>>8) & 255;
45 offsets[n++] = block & 255;
50 #include "itree_common.c"
52 int V2_minix_get_block(struct inode * inode, long block,
53 struct buffer_head *bh_result, int create)
55 return get_block(inode, block, bh_result, create);
58 void V2_minix_truncate(struct inode * inode)
63 unsigned V2_minix_blocks(loff_t size)