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btrfs-progs new dir index support

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This commit is contained in:
Josef Bacik 2008-07-24 12:13:32 -04:00 committed by David Woodhouse
parent 9864c90760
commit 059c20b384
5 changed files with 12 additions and 6 deletions

4
ctree.h
View File

@ -349,6 +349,7 @@ struct btrfs_dev_extent {
} __attribute__ ((__packed__));
struct btrfs_inode_ref {
__le64 index;
__le16 name_len;
/* name goes here */
} __attribute__ ((__packed__));
@ -795,6 +796,7 @@ BTRFS_SETGET_STACK_FUNCS(block_group_flags,
/* struct btrfs_inode_ref */
BTRFS_SETGET_FUNCS(inode_ref_name_len, struct btrfs_inode_ref, name_len, 16);
BTRFS_SETGET_FUNCS(inode_ref_index, struct btrfs_inode_ref, index, 64);
/* struct btrfs_inode_item */
BTRFS_SETGET_FUNCS(inode_generation, struct btrfs_inode_item, generation, 64);
@ -1461,7 +1463,7 @@ int btrfs_find_highest_inode(struct btrfs_root *fs_root, u64 *objectid);
int btrfs_insert_inode_ref(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
const char *name, int name_len,
u64 inode_objectid, u64 ref_objectid);
u64 inode_objectid, u64 ref_objectid, u64 index);
int btrfs_del_inode_ref(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
const char *name, int name_len,

4
inode-item.c
View File

@ -106,7 +106,7 @@ out:
int btrfs_insert_inode_ref(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
const char *name, int name_len,
u64 inode_objectid, u64 ref_objectid)
u64 inode_objectid, u64 ref_objectid, u64 index)
{
struct btrfs_path *path;
struct btrfs_key key;
@ -138,6 +138,7 @@ int btrfs_insert_inode_ref(struct btrfs_trans_handle *trans,
struct btrfs_inode_ref);
ref = (struct btrfs_inode_ref *)((unsigned long)ref + old_size);
btrfs_set_inode_ref_name_len(path->nodes[0], ref, name_len);
btrfs_set_inode_ref_index(path->nodes[0], ref, index);
ptr = (unsigned long)(ref + 1);
ret = 0;
} else if (ret < 0) {
@ -146,6 +147,7 @@ int btrfs_insert_inode_ref(struct btrfs_trans_handle *trans,
ref = btrfs_item_ptr(path->nodes[0], path->slots[0],
struct btrfs_inode_ref);
btrfs_set_inode_ref_name_len(path->nodes[0], ref, name_len);
btrfs_set_inode_ref_index(path->nodes[0], ref, index);
ptr = (unsigned long)(ref + 1);
}
write_extent_buffer(path->nodes[0], name, ptr, name_len);

2
mkfs.c
View File

@ -138,7 +138,7 @@ static int make_root_dir(int fd, const char *device_name) {
ret = btrfs_insert_inode_ref(trans, root->fs_info->tree_root,
"default", 7, location.objectid,
BTRFS_ROOT_TREE_DIR_OBJECTID);
BTRFS_ROOT_TREE_DIR_OBJECTID, 0);
if (ret)
goto err;

6
print-tree.c
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@ -61,14 +61,16 @@ static int print_inode_ref_item(struct extent_buffer *eb, struct btrfs_item *ite
u32 cur = 0;
u32 len;
u32 name_len;
u64 index;
char namebuf[BTRFS_NAME_LEN];
total = btrfs_item_size(eb, item);
while(cur < total) {
name_len = btrfs_inode_ref_name_len(eb, ref);
index = btrfs_inode_ref_index(eb, ref);
len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
read_extent_buffer(eb, namebuf, (unsigned long)(ref + 1), len);
printf("\t\tinode ref namelen %u name: %.*s\n",
name_len, len, namebuf);
printf("\t\tinode ref index %llu namelen %u name: %.*s\n",
index, name_len, len, namebuf);
len = sizeof(*ref) + name_len;
ref = (struct btrfs_inode_ref *)((char *)ref + len);
cur += len;

2
utils.c
View File

@ -561,7 +561,7 @@ int btrfs_make_root_dir(struct btrfs_trans_handle *trans,
if (ret)
goto error;
ret = btrfs_insert_inode_ref(trans, root, "..", 2, objectid, objectid);
ret = btrfs_insert_inode_ref(trans, root, "..", 2, objectid, objectid, 0);
if (ret)
goto error;