diff options
Diffstat (limited to 'disk-io.c')
| -rw-r--r-- | disk-io.c | 15 |
1 files changed, 15 insertions, 0 deletions
@@ -180,6 +180,7 @@ static int verify_parent_transid(struct extent_io_tree *io_tree, (unsigned long long)parent_transid, (unsigned long long)btrfs_header_generation(eb)); if (ignore) { + eb->flags |= EXTENT_BAD_TRANSID; printk("Ignoring transid failure\n"); return 0; } @@ -274,6 +275,12 @@ struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr, csum_tree_block(root, eb, 1) == 0 && verify_parent_transid(eb->tree, eb, parent_transid, ignore) == 0) { + if (eb->flags & EXTENT_BAD_TRANSID && + list_empty(&eb->recow)) { + list_add_tail(&eb->recow, + &root->fs_info->recow_ebs); + eb->refs++; + } btrfs_set_buffer_uptodate(eb); return eb; } @@ -749,6 +756,7 @@ struct btrfs_fs_info *btrfs_new_fs_info(int writable, u64 sb_bytenr) mutex_init(&fs_info->fs_mutex); INIT_LIST_HEAD(&fs_info->dirty_cowonly_roots); INIT_LIST_HEAD(&fs_info->space_info); + INIT_LIST_HEAD(&fs_info->recow_ebs); if (!writable) fs_info->readonly = 1; @@ -900,6 +908,13 @@ FREE_EXTENT_CACHE_BASED_TREE(mapping_cache, free_map_lookup); void btrfs_cleanup_all_caches(struct btrfs_fs_info *fs_info) { + while (!list_empty(&fs_info->recow_ebs)) { + struct extent_buffer *eb; + eb = list_first_entry(&fs_info->recow_ebs, + struct extent_buffer, recow); + list_del_init(&eb->recow); + free_extent_buffer(eb); + } free_mapping_cache_tree(&fs_info->mapping_tree.cache_tree); extent_io_tree_cleanup(&fs_info->extent_cache); extent_io_tree_cleanup(&fs_info->free_space_cache); |