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[PATCH] ext3: add extent map support

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On disk extents format:
/*
* this is extent on-disk structure
* it's used at the bottom of the tree
*/
struct ext3_extent {
__le32  ee_block;       /* first logical block extent covers */
__le16  ee_len;         /* number of blocks covered by extent */
__le16  ee_start_hi;    /* high 16 bits of physical block */
__le32  ee_start;       /* low 32 bigs of physical block */
};

Signed-off-by: Alex Tomas <alex@clusterfs.com>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Alex Tomas
2006-10-11 01:21:03 -07:00
committed by Linus Torvalds
parent c3fcc8137c
commit a86c618126
12 changed files with 2368 additions and 18 deletions
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3
fs/ext4/dir.c
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@@ -134,8 +134,7 @@ static int ext4_readdir(struct file * filp,
struct buffer_head *bh = NULL;
map_bh.b_state = 0;
err = ext4_get_blocks_handle(NULL, inode, blk, 1,
&map_bh, 0, 0);
err = ext4_get_blocks_wrap(NULL, inode, blk, 1, &map_bh, 0, 0);
if (err > 0) {
page_cache_readahead(sb->s_bdev->bd_inode->i_mapping,
&filp->f_ra,