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Fix isize/nbytes update bugs in btrfs-convert 

These fix a few converter problems found by the new btrfsck code.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
This commit is contained in:
Yan Zheng 2009-01-12 12:47:06 -05:00 committed by Chris Mason
parent 6a63d49114
commit abcfb5463c
2 changed files with 32 additions and 8 deletions
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36
convert.c
View File

@ -579,6 +579,7 @@ static int create_file_extents(struct btrfs_trans_handle *trans,
inode_size <= BTRFS_MAX_INLINE_DATA_SIZE(root)) {
u64 num_bytes = data.num_blocks * sectorsize;
u64 disk_bytenr = data.disk_block * sectorsize;
u64 nbytes;
buffer = malloc(num_bytes);
if (!buffer)
@ -592,6 +593,8 @@ static int create_file_extents(struct btrfs_trans_handle *trans,
0, buffer, num_bytes);
if (ret)
goto fail;
nbytes = btrfs_stack_inode_nbytes(btrfs_inode) + num_bytes;
btrfs_set_stack_inode_nbytes(btrfs_inode, nbytes);
} else if (data.num_blocks > 0) {
ret = record_file_blocks(trans, root, objectid, btrfs_inode,
data.first_block, data.disk_block,
@ -636,6 +639,7 @@ static int create_symbol_link(struct btrfs_trans_handle *trans,
BUG_ON(pathname[inode_size] != 0);
ret = btrfs_insert_inline_extent(trans, root, objectid, 0,
pathname, inode_size + 1);
btrfs_set_stack_inode_nbytes(btrfs_inode, inode_size + 1);
return ret;
}
@ -977,7 +981,7 @@ static int copy_inode_item(struct btrfs_inode_item *dst,
{
btrfs_set_stack_inode_generation(dst, 1);
btrfs_set_stack_inode_size(dst, src->i_size);
btrfs_set_stack_inode_nbytes(dst, (u64)src->i_blocks * blocksize);
btrfs_set_stack_inode_nbytes(dst, 0);
btrfs_set_stack_inode_block_group(dst, 0);
btrfs_set_stack_inode_nlink(dst, src->i_links_count);
btrfs_set_stack_inode_uid(dst, src->i_uid | (src->i_uid_high << 16));
@ -1411,8 +1415,10 @@ struct btrfs_root *link_subvol(struct btrfs_root *root, const char *base,
struct btrfs_trans_handle *trans;
struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_root *tree_root = fs_info->tree_root;
struct btrfs_root *new_root;
struct btrfs_root *new_root = NULL;
struct btrfs_path *path;
struct btrfs_inode_item *inode_item;
struct extent_buffer *leaf;
struct btrfs_key key;
u64 dirid = btrfs_root_dirid(&root->root_item);
u64 index = 2;
@ -1436,11 +1442,21 @@ struct btrfs_root *link_subvol(struct btrfs_root *root, const char *base,
if (key.objectid == dirid && key.type == BTRFS_DIR_INDEX_KEY)
index = key.offset + 1;
}
btrfs_free_path(path);
btrfs_release_path(root, path);
trans = btrfs_start_transaction(root, 1);
BUG_ON(!trans);
key.objectid = dirid;
key.offset = 0;
key.type = BTRFS_INODE_ITEM_KEY;
ret = btrfs_lookup_inode(trans, root, path, &key, 1);
BUG_ON(ret);
leaf = path->nodes[0];
inode_item = btrfs_item_ptr(leaf, path->slots[0],
struct btrfs_inode_item);
key.objectid = root_objectid;
key.offset = (u64)-1;
key.type = BTRFS_ROOT_ITEM_KEY;
@ -1456,6 +1472,11 @@ struct btrfs_root *link_subvol(struct btrfs_root *root, const char *base,
if (ret)
goto fail;
btrfs_set_inode_size(leaf, inode_item, strlen(buf) * 2 +
btrfs_inode_size(leaf, inode_item));
btrfs_mark_buffer_dirty(leaf);
btrfs_release_path(root, path);
/* add the backref first */
ret = btrfs_add_root_ref(trans, tree_root, root_objectid,
BTRFS_ROOT_BACKREF_KEY,
@ -1472,12 +1493,11 @@ struct btrfs_root *link_subvol(struct btrfs_root *root, const char *base,
BUG_ON(ret);
new_root = btrfs_read_fs_root(fs_info, &key);
if (!new_root || IS_ERR(new_root))
goto fail;
return new_root;
if (IS_ERR(new_root))
new_root = NULL;
fail:
return NULL;
btrfs_free_path(path);
return new_root;
}
/*

4
file-item.c
View File

@ -64,8 +64,12 @@ int btrfs_insert_file_extent(struct btrfs_trans_handle *trans,
btrfs_set_file_extent_disk_num_bytes(leaf, item, disk_num_bytes);
btrfs_set_file_extent_offset(leaf, item, 0);
btrfs_set_file_extent_num_bytes(leaf, item, num_bytes);
btrfs_set_file_extent_ram_bytes(leaf, item, num_bytes);
btrfs_set_file_extent_generation(leaf, item, trans->transid);
btrfs_set_file_extent_type(leaf, item, BTRFS_FILE_EXTENT_REG);
btrfs_set_file_extent_compression(leaf, item, 0);
btrfs_set_file_extent_encryption(leaf, item, 0);
btrfs_set_file_extent_other_encoding(leaf, item, 0);
btrfs_mark_buffer_dirty(leaf);
out:
btrfs_free_path(path);