1/*
 2 * file.c
 3 *
 4 * Copyright (c) 1999 Al Smith
 5 *
 6 * Portions derived from work (c) 1995,1996 Christian Vogelgsang.
 7 */
 8
 9#include <linux/buffer_head.h>
10#include "efs.h"
11
12int efs_get_block(struct inode *inode, sector_t iblock,
13		  struct buffer_head *bh_result, int create)
14{
15	int error = -EROFS;
16	long phys;
17
18	if (create)
19		return error;
20	if (iblock >= inode->i_blocks) {
21#ifdef DEBUG
22		/*
23		 * i have no idea why this happens as often as it does
24		 */
25		printk(KERN_WARNING "EFS: bmap(): block %d >= %ld (filesize %ld)\n",
26			block,
27			inode->i_blocks,
28			inode->i_size);
29#endif
30		return 0;
31	}
32	phys = efs_map_block(inode, iblock);
33	if (phys)
34		map_bh(bh_result, inode->i_sb, phys);
35	return 0;
36}
37
38int efs_bmap(struct inode *inode, efs_block_t block) {
39
40	if (block < 0) {
41		printk(KERN_WARNING "EFS: bmap(): block < 0\n");
42		return 0;
43	}
44
45	/* are we about to read past the end of a file ? */
46	if (!(block < inode->i_blocks)) {
47#ifdef DEBUG
48		/*
49		 * i have no idea why this happens as often as it does
50		 */
51		printk(KERN_WARNING "EFS: bmap(): block %d >= %ld (filesize %ld)\n",
52			block,
53			inode->i_blocks,
54			inode->i_size);
55#endif
56		return 0;
57	}
58
59	return efs_map_block(inode, block);
60}

 1/*
 2 * file.c
 3 *
 4 * Copyright (c) 1999 Al Smith
 5 *
 6 * Portions derived from work (c) 1995,1996 Christian Vogelgsang.
 7 */
 8
 9#include <linux/buffer_head.h>
10#include "efs.h"
11
12int efs_get_block(struct inode *inode, sector_t iblock,
13		  struct buffer_head *bh_result, int create)
14{
15	int error = -EROFS;
16	long phys;
17
18	if (create)
19		return error;
20	if (iblock >= inode->i_blocks) {
21#ifdef DEBUG
22		/*
23		 * i have no idea why this happens as often as it does
24		 */
25		pr_warn("%s(): block %d >= %ld (filesize %ld)\n",
26			__func__, block, inode->i_blocks, inode->i_size);
 
 
27#endif
28		return 0;
29	}
30	phys = efs_map_block(inode, iblock);
31	if (phys)
32		map_bh(bh_result, inode->i_sb, phys);
33	return 0;
34}
35
36int efs_bmap(struct inode *inode, efs_block_t block) {
37
38	if (block < 0) {
39		pr_warn("%s(): block < 0\n", __func__);
40		return 0;
41	}
42
43	/* are we about to read past the end of a file ? */
44	if (!(block < inode->i_blocks)) {
45#ifdef DEBUG
46		/*
47		 * i have no idea why this happens as often as it does
48		 */
49		pr_warn("%s(): block %d >= %ld (filesize %ld)\n",
50			__func__, block, inode->i_blocks, inode->i_size);
 
 
51#endif
52		return 0;
53	}
54
55	return efs_map_block(inode, block);
56}