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btrfs-progs: check: introduce main entry function for checking leaf items

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Introduce an entry function, check_leaf_items() to check all
known/valuable items and update related accounting like total_bytes and
csum_bytes.

Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Lu Fengqi 2016-04-24 15:07:59 +08:00 committed by David Sterba
parent f6647e2131
commit fbf33f2ffd
1 changed files with 81 additions and 0 deletions
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81
cmds-check.c
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@ -9705,6 +9705,87 @@ out:
return err;
}
/*
* Main entry function to check known items and update related accounting info
*/
static int check_leaf_items(struct btrfs_root *root, struct extent_buffer *eb)
{
struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_key key;
int slot = 0;
int type;
struct btrfs_extent_data_ref *dref;
int ret;
int err = 0;
next:
btrfs_item_key_to_cpu(eb, &key, slot);
type = btrfs_key_type(&key);
switch (type) {
case BTRFS_EXTENT_DATA_KEY:
ret = check_extent_data_item(root, eb, slot);
err |= ret;
break;
case BTRFS_BLOCK_GROUP_ITEM_KEY:
ret = check_block_group_item(fs_info, eb, slot);
err |= ret;
break;
case BTRFS_DEV_ITEM_KEY:
ret = check_dev_item(fs_info, eb, slot);
err |= ret;
break;
case BTRFS_CHUNK_ITEM_KEY:
ret = check_chunk_item(fs_info, eb, slot);
err |= ret;
break;
case BTRFS_DEV_EXTENT_KEY:
ret = check_dev_extent_item(fs_info, eb, slot);
err |= ret;
break;
case BTRFS_EXTENT_ITEM_KEY:
case BTRFS_METADATA_ITEM_KEY:
ret = check_extent_item(fs_info, eb, slot);
err |= ret;
break;
case BTRFS_EXTENT_CSUM_KEY:
total_csum_bytes += btrfs_item_size_nr(eb, slot);
break;
case BTRFS_TREE_BLOCK_REF_KEY:
ret = check_tree_block_backref(fs_info, key.offset,
key.objectid, -1);
err |= ret;
break;
case BTRFS_EXTENT_DATA_REF_KEY:
dref = btrfs_item_ptr(eb, slot, struct btrfs_extent_data_ref);
ret = check_extent_data_backref(fs_info,
btrfs_extent_data_ref_root(eb, dref),
btrfs_extent_data_ref_objectid(eb, dref),
btrfs_extent_data_ref_offset(eb, dref),
key.objectid, 0,
btrfs_extent_data_ref_count(eb, dref));
err |= ret;
break;
case BTRFS_SHARED_BLOCK_REF_KEY:
ret = check_shared_block_backref(fs_info, key.offset,
key.objectid, -1);
err |= ret;
break;
case BTRFS_SHARED_DATA_REF_KEY:
ret = check_shared_data_backref(fs_info, key.offset,
key.objectid);
err |= ret;
break;
default:
break;
}
if (++slot < btrfs_header_nritems(eb))
goto next;
return err;
}
static int btrfs_fsck_reinit_root(struct btrfs_trans_handle *trans,
struct btrfs_root *root, int overwrite)
{