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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - fs/minix/itree_v1.c
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
);