diff --git a/fs/btrfs/TODO b/fs/btrfs/TODO index e9371385ccc01ac6b9c5e02181039c49352a7313..db986c46a554c2e80fa5a9313749008be095031e 100644 --- a/fs/btrfs/TODO +++ b/fs/btrfs/TODO @@ -1,9 +1,7 @@ * cleanup, add more error checking, get rid of BUG_ONs * Fix ENOSPC handling -* Do checksumming * Add block mapping tree (simple dm layer) * Make allocator smarter -* make level a field in header * add a block group to struct inode * Make directory hashing work on 32 bit * Make sure nobh stuff is working properly for cows diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index d8e03bd797ff6338d09c36a643581ee4156bec78..41cc013ef08de6c1e971d7883a34efb08ea71591 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -238,7 +238,6 @@ struct btrfs_fs_info { struct radix_tree_root pending_del_radix; struct radix_tree_root pinned_radix; u64 last_inode_alloc; - u64 last_inode_alloc_dirid; u64 generation; struct btrfs_transaction *running_transaction; struct btrfs_super_block *disk_super; diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 055cd45e802e0c794960d0ba3d72a826fdeb83b4..de9ee3aa0aad53d0437b0dae4df193429e20faf1 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -311,7 +311,6 @@ struct btrfs_root *open_ctree(struct super_block *sb) fs_info->extent_root = extent_root; fs_info->inode_root = inode_root; fs_info->last_inode_alloc = 0; - fs_info->last_inode_alloc_dirid = 0; fs_info->sb = sb; fs_info->btree_inode = new_inode(sb); fs_info->btree_inode->i_ino = 1; diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index cd40a08dd8a666af9b0a77bb7e2cf17e16101544..688aa861a9281c09ed807d8845e18f773b7bc759 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -339,13 +339,30 @@ static int find_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root int total_needed = num_blocks; int level; + path = btrfs_alloc_path(); + ins->flags = 0; + btrfs_set_key_type(ins, BTRFS_EXTENT_ITEM_KEY); + level = btrfs_header_level(btrfs_buffer_header(root->node)); total_needed += (level + 1) * 3; + if (root->fs_info->last_insert.objectid == 0 && search_end == (u64)-1) { + struct btrfs_disk_key *last_key; + btrfs_init_path(path); + ins->objectid = (u64)-1; + ins->offset = (u64)-1; + ret = btrfs_search_slot(trans, root, ins, path, 0, 0); + if (ret < 0) + goto error; + BUG_ON(ret == 0); + if (path->slots[0] > 0) + path->slots[0]--; + l = btrfs_buffer_leaf(path->nodes[0]); + last_key = &l->items[path->slots[0]].key; + search_start = btrfs_disk_key_objectid(last_key); + } if (root->fs_info->last_insert.objectid > search_start) search_start = root->fs_info->last_insert.objectid; - ins->flags = 0; - btrfs_set_key_type(ins, BTRFS_EXTENT_ITEM_KEY); path = btrfs_alloc_path(); check_failed: diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c index b3de823eb628d31735eae51f5a418aae36d54cad..329edb42897ef3dff064278f7bd13e804c8f03ae 100644 --- a/fs/btrfs/inode-map.c +++ b/fs/btrfs/inode-map.c @@ -22,17 +22,31 @@ int btrfs_find_free_objectid(struct btrfs_trans_handle *trans, struct btrfs_key search_key; u64 search_start = dirid; - if (fs_root->fs_info->last_inode_alloc_dirid == dirid) - search_start = fs_root->fs_info->last_inode_alloc; + path = btrfs_alloc_path(); + BUG_ON(!path); + search_key.flags = 0; + btrfs_set_key_type(&search_key, BTRFS_INODE_MAP_ITEM_KEY); + search_start = fs_root->fs_info->last_inode_alloc; + if (search_start == 0) { + struct btrfs_disk_key *last_key; + btrfs_init_path(path); + search_key.objectid = (u64)-1; + search_key.offset = (u64)-1; + ret = btrfs_search_slot(trans, root, &search_key, path, 0, 0); + if (ret < 0) + goto error; + BUG_ON(ret == 0); + if (path->slots[0] > 0) + path->slots[0]--; + l = btrfs_buffer_leaf(path->nodes[0]); + last_key = &l->items[path->slots[0]].key; + search_start = btrfs_disk_key_objectid(last_key); + } search_start = max(search_start, BTRFS_FIRST_FREE_OBJECTID); search_key.objectid = search_start; - search_key.flags = 0; - btrfs_set_key_type(&search_key, BTRFS_INODE_MAP_ITEM_KEY); search_key.offset = 0; - path = btrfs_alloc_path(); - BUG_ON(!path); btrfs_init_path(path); start_found = 0; ret = btrfs_search_slot(trans, root, &search_key, path, 0, 0); @@ -79,7 +93,6 @@ int btrfs_find_free_objectid(struct btrfs_trans_handle *trans, // FIXME -ENOSPC found: root->fs_info->last_inode_alloc = *objectid; - root->fs_info->last_inode_alloc_dirid = dirid; btrfs_release_path(root, path); btrfs_free_path(path); BUG_ON(*objectid < search_start);