diff options
Diffstat (limited to 'disk-io.c')
| -rw-r--r-- | disk-io.c | 16 |
1 files changed, 15 insertions, 1 deletions
@@ -811,6 +811,7 @@ void btrfs_free_fs_info(struct btrfs_fs_info *fs_info) free(fs_info->dev_root); free(fs_info->csum_root); free(fs_info->quota_root); + free(fs_info->free_space_root); free(fs_info->super_copy); free(fs_info->log_root_tree); free(fs_info); @@ -830,12 +831,13 @@ struct btrfs_fs_info *btrfs_new_fs_info(int writable, u64 sb_bytenr) fs_info->dev_root = calloc(1, sizeof(struct btrfs_root)); fs_info->csum_root = calloc(1, sizeof(struct btrfs_root)); fs_info->quota_root = calloc(1, sizeof(struct btrfs_root)); + fs_info->free_space_root = calloc(1, sizeof(struct btrfs_root)); fs_info->super_copy = calloc(1, BTRFS_SUPER_INFO_SIZE); if (!fs_info->tree_root || !fs_info->extent_root || !fs_info->chunk_root || !fs_info->dev_root || !fs_info->csum_root || !fs_info->quota_root || - !fs_info->super_copy) + !fs_info->free_space_root || !fs_info->super_copy) goto free_all; extent_io_tree_init(&fs_info->extent_cache); @@ -1016,6 +1018,16 @@ int btrfs_setup_all_roots(struct btrfs_fs_info *fs_info, u64 root_tree_bytenr, if (ret == 0) fs_info->quota_enabled = 1; + if (btrfs_fs_compat_ro(fs_info, BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE)) { + ret = find_and_setup_root(root, fs_info, BTRFS_FREE_SPACE_TREE_OBJECTID, + fs_info->free_space_root); + if (ret) { + printk("Couldn't read free space tree\n"); + return -EIO; + } + fs_info->free_space_root->track_dirty = 1; + } + ret = find_and_setup_log_root(root, fs_info, sb); if (ret) { printk("Couldn't setup log root tree\n"); @@ -1041,6 +1053,8 @@ int btrfs_setup_all_roots(struct btrfs_fs_info *fs_info, u64 root_tree_bytenr, void btrfs_release_all_roots(struct btrfs_fs_info *fs_info) { + if (fs_info->free_space_root) + free_extent_buffer(fs_info->free_space_root->node); if (fs_info->quota_root) free_extent_buffer(fs_info->quota_root->node); if (fs_info->csum_root) |