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btrfs-progs
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dir inode index

This commit is contained in:
Chris Mason 2007-04-04 21:23:26 -04:00 committed by David Woodhouse
parent 4d11434c12
commit 6542904d95
3 changed files with 36 additions and 7 deletions
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15
ctree.h
View File

@ -270,37 +270,38 @@ struct btrfs_root {
* for every name in a directory.
*/
#define BTRFS_DIR_ITEM_KEY 2
#define BTRFS_DIR_INDEX_KEY 3
/*
* inline data is file data that fits in the btree.
*/
#define BTRFS_INLINE_DATA_KEY 3
#define BTRFS_INLINE_DATA_KEY 4
/*
* extent data is for data that can't fit in the btree. It points to
* a (hopefully) huge chunk of disk
*/
#define BTRFS_EXTENT_DATA_KEY 4
#define BTRFS_CSUM_ITEM_KEY 5
#define BTRFS_EXTENT_DATA_KEY 5
#define BTRFS_CSUM_ITEM_KEY 6
/*
* root items point to tree roots. There are typically in the root
* tree used by the super block to find all the other trees
*/
#define BTRFS_ROOT_ITEM_KEY 6
#define BTRFS_ROOT_ITEM_KEY 7
/*
* extent items are in the extent map tree. These record which blocks
* are used, and how many references there are to each block
*/
#define BTRFS_EXTENT_ITEM_KEY 7
#define BTRFS_EXTENT_ITEM_KEY 8
/*
* the inode map records which inode numbers are in use and where
* they actually live on disk
*/
#define BTRFS_INODE_MAP_ITEM_KEY 8
#define BTRFS_INODE_MAP_ITEM_KEY 9
/*
* string items are for debugging. They just store a short string of
* data in the FS
*/
#define BTRFS_STRING_ITEM_KEY 9
#define BTRFS_STRING_ITEM_KEY 10
static inline u64 btrfs_inode_generation(struct btrfs_inode_item *i)
{

19
dir-item.c
View File

@ -42,6 +42,25 @@ int btrfs_insert_dir_item(struct btrfs_trans_handle *trans, struct btrfs_root
btrfs_set_dir_name_len(dir_item, name_len);
name_ptr = (char *)(dir_item + 1);
memcpy(name_ptr, name, name_len);
// FIXME don't be stupid
if (key.offset == 2)
goto out;
btrfs_release_path(root, &path);
btrfs_set_key_type(&key, BTRFS_DIR_INDEX_KEY);
key.offset = objectid;
ret = btrfs_insert_empty_item(trans, root, &path, &key, data_size);
if (ret)
goto out;
dir_item = btrfs_item_ptr(&path.nodes[0]->leaf, path.slots[0],
struct btrfs_dir_item);
btrfs_set_dir_objectid(dir_item, objectid);
btrfs_set_dir_type(dir_item, type);
btrfs_set_dir_flags(dir_item, 0);
btrfs_set_dir_name_len(dir_item, name_len);
name_ptr = (char *)(dir_item + 1);
memcpy(name_ptr, name, name_len);
out:
btrfs_release_path(root, &path);
return ret;

9
print-tree.c
View File

@ -56,6 +56,15 @@ void btrfs_print_leaf(struct btrfs_root *root, struct btrfs_leaf *l)
printf("\t\tname %.*s\n",
btrfs_dir_name_len(di),(char *)(di + 1));
break;
case BTRFS_DIR_INDEX_KEY:
di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
printf("\t\tdir index %Lu flags %u type %u\n",
btrfs_dir_objectid(di),
btrfs_dir_flags(di),
btrfs_dir_type(di));
printf("\t\tname %.*s\n",
btrfs_dir_name_len(di),(char *)(di + 1));
break;
case BTRFS_ROOT_ITEM_KEY:
ri = btrfs_item_ptr(l, i, struct btrfs_root_item);
printf("\t\troot data blocknr %Lu refs %u\n",