diff --git a/image/main.c b/image/main.c index d9e4e673..d82e75f1 100644 --- a/image/main.c +++ b/image/main.c @@ -2164,6 +2164,51 @@ again: return 0; } +static void fixup_block_groups(struct btrfs_fs_info *fs_info) +{ + struct btrfs_block_group_cache *bg; + struct btrfs_mapping_tree *map_tree = &fs_info->mapping_tree; + struct cache_extent *ce; + struct map_lookup *map; + u64 extra_flags; + + for (ce = search_cache_extent(&map_tree->cache_tree, 0); ce; + ce = next_cache_extent(ce)) { + map = container_of(ce, struct map_lookup, ce); + + bg = btrfs_lookup_block_group(fs_info, ce->start); + if (!bg) { + warning( + "cannot find block group %llu, filesystem may not be mountable", + ce->start); + continue; + } + extra_flags = map->type & BTRFS_BLOCK_GROUP_PROFILE_MASK; + + if (bg->flags == map->type) + continue; + + /* Update the block group item and mark the bg dirty */ + bg->flags = map->type; + btrfs_set_block_group_flags(&bg->item, bg->flags); + set_extent_bits(&fs_info->block_group_cache, ce->start, + ce->start + ce->size - 1, BLOCK_GROUP_DIRTY); + + /* + * Chunk and bg flags can be different, changing bg flags + * without update avail_data/meta_alloc_bits will lead to + * ENOSPC. + * So here we set avail_*_alloc_bits to match chunk types. + */ + if (map->type & BTRFS_BLOCK_GROUP_DATA) + fs_info->avail_data_alloc_bits = extra_flags; + if (map->type & BTRFS_BLOCK_GROUP_METADATA) + fs_info->avail_metadata_alloc_bits = extra_flags; + if (map->type & BTRFS_BLOCK_GROUP_SYSTEM) + fs_info->avail_system_alloc_bits = extra_flags; + } +} + static int fixup_chunks_and_devices(struct btrfs_fs_info *fs_info, struct mdrestore_struct *mdres, off_t dev_size) { @@ -2180,6 +2225,7 @@ static int fixup_chunks_and_devices(struct btrfs_fs_info *fs_info, return PTR_ERR(trans); } + fixup_block_groups(fs_info); ret = fixup_device_size(trans, mdres, dev_size); if (ret < 0) goto error;