diff options
| -rw-r--r-- | fs/btrfs/backref.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index 7966acd5dc7f..aded3ef3d3d4 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -66,6 +66,16 @@ static int check_extent_in_eb(struct btrfs_key *key, struct extent_buffer *eb, return 0; } +static void free_inode_elem_list(struct extent_inode_elem *eie) +{ + struct extent_inode_elem *eie_next; + + for (; eie; eie = eie_next) { + eie_next = eie->next; + kfree(eie); + } +} + static int find_extent_in_eb(struct extent_buffer *eb, u64 wanted_disk_byte, u64 extent_item_pos, struct extent_inode_elem **eie) @@ -275,6 +285,7 @@ static int add_all_parents(struct btrfs_root *root, struct btrfs_path *path, old = old->next; old->next = eie; } + eie = NULL; } next: ret = btrfs_next_old_item(root, path, time_seq); @@ -282,6 +293,8 @@ next: if (ret > 0) ret = 0; + else if (ret < 0) + free_inode_elem_list(eie); return ret; } @@ -845,6 +858,7 @@ static int find_parent_nodes(struct btrfs_trans_handle *trans, struct list_head prefs_delayed; struct list_head prefs; struct __prelim_ref *ref; + struct extent_inode_elem *eie = NULL; INIT_LIST_HEAD(&prefs); INIT_LIST_HEAD(&prefs_delayed); @@ -958,7 +972,6 @@ again: goto out; } if (ref->count && ref->parent) { - struct extent_inode_elem *eie = NULL; if (extent_item_pos && !ref->inode_list) { u32 bsz; struct extent_buffer *eb; @@ -993,6 +1006,7 @@ again: eie = eie->next; eie->next = ref->inode_list; } + eie = NULL; } list_del(&ref->list); kmem_cache_free(btrfs_prelim_ref_cache, ref); @@ -1011,7 +1025,8 @@ out: list_del(&ref->list); kmem_cache_free(btrfs_prelim_ref_cache, ref); } - + if (ret < 0) + free_inode_elem_list(eie); return ret; } @@ -1019,7 +1034,6 @@ static void free_leaf_list(struct ulist *blocks) { struct ulist_node *node = NULL; struct extent_inode_elem *eie; - struct extent_inode_elem *eie_next; struct ulist_iterator uiter; ULIST_ITER_INIT(&uiter); @@ -1027,10 +1041,7 @@ static void free_leaf_list(struct ulist *blocks) if (!node->aux) continue; eie = (struct extent_inode_elem *)(uintptr_t)node->aux; - for (; eie; eie = eie_next) { - eie_next = eie->next; - kfree(eie); - } + free_inode_elem_list(eie); node->aux = 0; } |