diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/send.c | 105 |
1 files changed, 64 insertions, 41 deletions
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 89fefbd955f3..a2621e7aaa5c 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -2501,17 +2501,26 @@ static int did_create_dir(struct send_ctx *sctx, u64 dir) key.objectid = dir; key.type = BTRFS_DIR_INDEX_KEY; key.offset = 0; + ret = btrfs_search_slot(NULL, sctx->send_root, &key, path, 0, 0); + if (ret < 0) + goto out; + while (1) { - ret = btrfs_search_slot_for_read(sctx->send_root, &key, path, - 1, 0); - if (ret < 0) - goto out; - if (!ret) { - eb = path->nodes[0]; - slot = path->slots[0]; - btrfs_item_key_to_cpu(eb, &found_key, slot); + eb = path->nodes[0]; + slot = path->slots[0]; + if (slot >= btrfs_header_nritems(eb)) { + ret = btrfs_next_leaf(sctx->send_root, path); + if (ret < 0) { + goto out; + } else if (ret > 0) { + ret = 0; + break; + } + continue; } - if (ret || found_key.objectid != key.objectid || + + btrfs_item_key_to_cpu(eb, &found_key, slot); + if (found_key.objectid != key.objectid || found_key.type != key.type) { ret = 0; goto out; @@ -2526,8 +2535,7 @@ static int did_create_dir(struct send_ctx *sctx, u64 dir) goto out; } - key.offset = found_key.offset + 1; - btrfs_release_path(path); + path->slots[0]++; } out: @@ -2693,19 +2701,24 @@ static int can_rmdir(struct send_ctx *sctx, u64 dir, u64 send_progress) key.objectid = dir; key.type = BTRFS_DIR_INDEX_KEY; key.offset = 0; + ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); + if (ret < 0) + goto out; while (1) { - ret = btrfs_search_slot_for_read(root, &key, path, 1, 0); - if (ret < 0) - goto out; - if (!ret) { - btrfs_item_key_to_cpu(path->nodes[0], &found_key, - path->slots[0]); + if (path->slots[0] >= btrfs_header_nritems(path->nodes[0])) { + ret = btrfs_next_leaf(root, path); + if (ret < 0) + goto out; + else if (ret > 0) + break; + continue; } - if (ret || found_key.objectid != key.objectid || - found_key.type != key.type) { + btrfs_item_key_to_cpu(path->nodes[0], &found_key, + path->slots[0]); + if (found_key.objectid != key.objectid || + found_key.type != key.type) break; - } di = btrfs_item_ptr(path->nodes[0], path->slots[0], struct btrfs_dir_item); @@ -2716,8 +2729,7 @@ static int can_rmdir(struct send_ctx *sctx, u64 dir, u64 send_progress) goto out; } - btrfs_release_path(path); - key.offset = found_key.offset + 1; + path->slots[0]++; } ret = 1; @@ -3620,15 +3632,22 @@ static int process_all_refs(struct send_ctx *sctx, key.objectid = sctx->cmp_key->objectid; key.type = BTRFS_INODE_REF_KEY; key.offset = 0; - while (1) { - ret = btrfs_search_slot_for_read(root, &key, path, 1, 0); - if (ret < 0) - goto out; - if (ret) - break; + ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); + if (ret < 0) + goto out; + while (1) { eb = path->nodes[0]; slot = path->slots[0]; + if (slot >= btrfs_header_nritems(eb)) { + ret = btrfs_next_leaf(root, path); + if (ret < 0) + goto out; + else if (ret > 0) + break; + continue; + } + btrfs_item_key_to_cpu(eb, &found_key, slot); if (found_key.objectid != key.objectid || @@ -3637,11 +3656,10 @@ static int process_all_refs(struct send_ctx *sctx, break; ret = iterate_inode_ref(root, path, &found_key, 0, cb, sctx); - btrfs_release_path(path); if (ret < 0) goto out; - key.offset = found_key.offset + 1; + path->slots[0]++; } btrfs_release_path(path); @@ -3922,19 +3940,25 @@ static int process_all_new_xattrs(struct send_ctx *sctx) key.objectid = sctx->cmp_key->objectid; key.type = BTRFS_XATTR_ITEM_KEY; key.offset = 0; - while (1) { - ret = btrfs_search_slot_for_read(root, &key, path, 1, 0); - if (ret < 0) - goto out; - if (ret) { - ret = 0; - goto out; - } + ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); + if (ret < 0) + goto out; + while (1) { eb = path->nodes[0]; slot = path->slots[0]; - btrfs_item_key_to_cpu(eb, &found_key, slot); + if (slot >= btrfs_header_nritems(eb)) { + ret = btrfs_next_leaf(root, path); + if (ret < 0) { + goto out; + } else if (ret > 0) { + ret = 0; + break; + } + continue; + } + btrfs_item_key_to_cpu(eb, &found_key, slot); if (found_key.objectid != key.objectid || found_key.type != key.type) { ret = 0; @@ -3946,8 +3970,7 @@ static int process_all_new_xattrs(struct send_ctx *sctx) if (ret < 0) goto out; - btrfs_release_path(path); - key.offset = found_key.offset + 1; + path->slots[0]++; } out: |