1 fs/ext3/inode.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
2 fs/ext3/super.c | 3 +++
3 2 files changed, 55 insertions(+)
5 --- linux-2.6.0-test6/fs/ext3/inode.c~ext3-map_inode_page-2.6.0 2003-10-14 17:03:48.000000000 +0400
6 +++ linux-2.6.0-test6-alexey/fs/ext3/inode.c 2003-10-14 17:03:49.000000000 +0400
7 @@ -3143,3 +3143,55 @@ int ext3_prep_san_write(struct inode *in
12 +int ext3_map_inode_page(struct inode *inode, struct page *page,
13 + unsigned long *blocks, int *created, int create)
15 + unsigned int blocksize, blocks_per_page;
16 + unsigned long iblock;
17 + struct buffer_head dummy;
19 + int i, rc = 0, failed = 0, needed_blocks;
21 + blocksize = inode->i_sb->s_blocksize;
22 + blocks_per_page = PAGE_SIZE >> inode->i_sb->s_blocksize_bits;
23 + iblock = page->index * blocks_per_page;
25 + for (i = 0; i < blocks_per_page; i++, iblock++) {
26 + blocks[i] = ext3_bmap(inode->i_mapping, iblock);
27 + if (blocks[i] == 0) {
35 + if (failed == 0 || create == 0)
38 + needed_blocks = ext3_writepage_trans_blocks(inode);
39 + handle = ext3_journal_start(inode, needed_blocks);
41 + return PTR_ERR(handle);
43 + iblock = page->index * blocks_per_page;
44 + for (i = 0; i < blocks_per_page; i++, iblock++) {
48 + rc = ext3_get_block_handle(handle, inode, iblock, &dummy, 1, 1);
50 + printk(KERN_INFO "ext3_map_inode_page: error reading "
51 + "block %ld\n", iblock);
54 + blocks[i] = dummy.b_blocknr;
59 + ext3_journal_stop(handle);
63 --- linux-2.6.0-test6/fs/ext3/super.c~ext3-map_inode_page-2.6.0 2003-10-14 17:03:48.000000000 +0400
64 +++ linux-2.6.0-test6-alexey/fs/ext3/super.c 2003-10-14 17:09:05.000000000 +0400
65 @@ -2043,6 +2043,9 @@ static void __exit exit_ext3_fs(void)
66 int ext3_prep_san_write(struct inode *inode, long *blocks,
67 int nblocks, loff_t newsize);
68 EXPORT_SYMBOL(ext3_prep_san_write);
69 +int ext3_map_inode_page(struct inode *inode, struct page *page,
70 + unsigned long *blocks, int *created, int create);
71 +EXPORT_SYMBOL(ext3_map_inode_page);
73 MODULE_AUTHOR("Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others");
74 MODULE_DESCRIPTION("Second Extended Filesystem with journaling extensions");