diff options
Diffstat (limited to 'fs/btrfs/backref.c')
| -rw-r--r-- | fs/btrfs/backref.c | 40 |
1 files changed, 14 insertions, 26 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index a383c18e74e..a256f3b2a84 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -773,9 +773,8 @@ static int __add_keyed_refs(struct btrfs_fs_info *fs_info, */ static int find_parent_nodes(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info, u64 bytenr, - u64 delayed_ref_seq, u64 time_seq, - struct ulist *refs, struct ulist *roots, - const u64 *extent_item_pos) + u64 time_seq, struct ulist *refs, + struct ulist *roots, const u64 *extent_item_pos) { struct btrfs_key key; struct btrfs_path *path; @@ -837,7 +836,7 @@ again: btrfs_put_delayed_ref(&head->node); goto again; } - ret = __add_delayed_refs(head, delayed_ref_seq, + ret = __add_delayed_refs(head, time_seq, &prefs_delayed); mutex_unlock(&head->mutex); if (ret) { @@ -981,8 +980,7 @@ static void free_leaf_list(struct ulist *blocks) */ static int btrfs_find_all_leafs(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info, u64 bytenr, - u64 delayed_ref_seq, u64 time_seq, - struct ulist **leafs, + u64 time_seq, struct ulist **leafs, const u64 *extent_item_pos) { struct ulist *tmp; @@ -997,7 +995,7 @@ static int btrfs_find_all_leafs(struct btrfs_trans_handle *trans, return -ENOMEM; } - ret = find_parent_nodes(trans, fs_info, bytenr, delayed_ref_seq, + ret = find_parent_nodes(trans, fs_info, bytenr, time_seq, *leafs, tmp, extent_item_pos); ulist_free(tmp); @@ -1024,8 +1022,7 @@ static int btrfs_find_all_leafs(struct btrfs_trans_handle *trans, */ int btrfs_find_all_roots(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info, u64 bytenr, - u64 delayed_ref_seq, u64 time_seq, - struct ulist **roots) + u64 time_seq, struct ulist **roots) { struct ulist *tmp; struct ulist_node *node = NULL; @@ -1043,7 +1040,7 @@ int btrfs_find_all_roots(struct btrfs_trans_handle *trans, ULIST_ITER_INIT(&uiter); while (1) { - ret = find_parent_nodes(trans, fs_info, bytenr, delayed_ref_seq, + ret = find_parent_nodes(trans, fs_info, bytenr, time_seq, tmp, *roots, NULL); if (ret < 0 && ret != -ENOENT) { ulist_free(tmp); @@ -1125,10 +1122,10 @@ static int inode_ref_info(u64 inum, u64 ioff, struct btrfs_root *fs_root, * required for the path to fit into the buffer. in that case, the returned * value will be smaller than dest. callers must check this! */ -static char *iref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path, - struct btrfs_inode_ref *iref, - struct extent_buffer *eb_in, u64 parent, - char *dest, u32 size) +char *btrfs_iref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path, + struct btrfs_inode_ref *iref, + struct extent_buffer *eb_in, u64 parent, + char *dest, u32 size) { u32 len; int slot; @@ -1376,11 +1373,9 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info, struct ulist *roots = NULL; struct ulist_node *ref_node = NULL; struct ulist_node *root_node = NULL; - struct seq_list seq_elem = {}; struct seq_list tree_mod_seq_elem = {}; struct ulist_iterator ref_uiter; struct ulist_iterator root_uiter; - struct btrfs_delayed_ref_root *delayed_refs = NULL; pr_debug("resolving all inodes for extent %llu\n", extent_item_objectid); @@ -1391,16 +1386,11 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info, trans = btrfs_join_transaction(fs_info->extent_root); if (IS_ERR(trans)) return PTR_ERR(trans); - - delayed_refs = &trans->transaction->delayed_refs; - spin_lock(&delayed_refs->lock); - btrfs_get_delayed_seq(delayed_refs, &seq_elem); - spin_unlock(&delayed_refs->lock); btrfs_get_tree_mod_seq(fs_info, &tree_mod_seq_elem); } ret = btrfs_find_all_leafs(trans, fs_info, extent_item_objectid, - seq_elem.seq, tree_mod_seq_elem.seq, &refs, + tree_mod_seq_elem.seq, &refs, &extent_item_pos); if (ret) goto out; @@ -1408,8 +1398,7 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info, ULIST_ITER_INIT(&ref_uiter); while (!ret && (ref_node = ulist_next(refs, &ref_uiter))) { ret = btrfs_find_all_roots(trans, fs_info, ref_node->val, - seq_elem.seq, - tree_mod_seq_elem.seq, &roots); + tree_mod_seq_elem.seq, &roots); if (ret) break; ULIST_ITER_INIT(&root_uiter); @@ -1431,7 +1420,6 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info, out: if (!search_commit_root) { btrfs_put_tree_mod_seq(fs_info, &tree_mod_seq_elem); - btrfs_put_delayed_seq(delayed_refs, &seq_elem); btrfs_end_transaction(trans, fs_info->extent_root); } @@ -1543,7 +1531,7 @@ static int inode_to_path(u64 inum, struct btrfs_inode_ref *iref, ipath->fspath->bytes_left - s_ptr : 0; fspath_min = (char *)ipath->fspath->val + (i + 1) * s_ptr; - fspath = iref_to_path(ipath->fs_root, ipath->btrfs_path, iref, eb, + fspath = btrfs_iref_to_path(ipath->fs_root, ipath->btrfs_path, iref, eb, inum, fspath_min, bytes_left); if (IS_ERR(fspath)) return PTR_ERR(fspath); |