diff options
Diffstat (limited to 'fs/btrfs/delayed-ref.h')
| -rw-r--r-- | fs/btrfs/delayed-ref.h | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h index 43f3629760e9..0e537f98f1a1 100644 --- a/fs/btrfs/delayed-ref.h +++ b/fs/btrfs/delayed-ref.h @@ -34,14 +34,14 @@ * ref_head. Must clean this mess up later. */ struct btrfs_delayed_ref_node { - /* - * ref_head use rb tree, stored in ref_root->href. - * indexed by bytenr - */ - struct rb_node rb_node; - /*data/tree ref use list, stored in ref_head->ref_list. */ struct list_head list; + /* + * If action is BTRFS_ADD_DELAYED_REF, also link this node to + * ref_head->ref_add_list, then we do not need to iterate the + * whole ref_head->ref_list to find BTRFS_ADD_DELAYED_REF nodes. + */ + struct list_head add_list; /* the starting bytenr of the extent */ u64 bytenr; @@ -99,6 +99,8 @@ struct btrfs_delayed_ref_head { spinlock_t lock; struct list_head ref_list; + /* accumulate add BTRFS_ADD_DELAYED_REF nodes to this ref_add_list. */ + struct list_head ref_add_list; struct rb_node href_node; @@ -248,8 +250,7 @@ int btrfs_add_delayed_data_ref(struct btrfs_fs_info *fs_info, struct btrfs_trans_handle *trans, u64 bytenr, u64 num_bytes, u64 parent, u64 ref_root, - u64 owner, u64 offset, u64 reserved, int action, - struct btrfs_delayed_extent_op *extent_op); + u64 owner, u64 offset, u64 reserved, int action); int btrfs_add_delayed_extent_op(struct btrfs_fs_info *fs_info, struct btrfs_trans_handle *trans, u64 bytenr, u64 num_bytes, @@ -260,7 +261,8 @@ void btrfs_merge_delayed_refs(struct btrfs_trans_handle *trans, struct btrfs_delayed_ref_head *head); struct btrfs_delayed_ref_head * -btrfs_find_delayed_ref_head(struct btrfs_trans_handle *trans, u64 bytenr); +btrfs_find_delayed_ref_head(struct btrfs_delayed_ref_root *delayed_refs, + u64 bytenr); int btrfs_delayed_ref_lock(struct btrfs_trans_handle *trans, struct btrfs_delayed_ref_head *head); static inline void btrfs_delayed_ref_unlock(struct btrfs_delayed_ref_head *head) |