diff options
| author | Lu Fengqi <lufq.fnst@cn.fujitsu.com> | 2016-04-24 15:07:59 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2016-08-17 18:51:21 +0200 |
| commit | fbf33f2ffdc85765c6c653f1a507b3e01154d30d (patch) | |
| tree | 3da9ce60cd517875e62e4266352e96a807f0ef72 | |
| parent | f6647e21319ae04fd4604544262f2b6460d97f1b (diff) | |
btrfs-progs: check: introduce main entry function for checking leaf items
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>
| -rw-r--r-- | cmds-check.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/cmds-check.c b/cmds-check.c index 140bba5e..5817889a 100644 --- a/cmds-check.c +++ b/cmds-check.c @@ -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) { |