btrfs: delayed_ref: release and free qgroup reserved at proper timing

[cascardo/linux.git] / fs / btrfs / qgroup.h

diff --git a/fs/btrfs/qgroup.h b/fs/btrfs/qgroup.h
index 6387dcf..80924ae 100644 (file)
--- a/fs/btrfs/qgroup.h
+++ b/fs/btrfs/qgroup.h
@@ -72,7 +72,23 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans,
                         struct btrfs_fs_info *fs_info, u64 srcid, u64 objectid,
                         struct btrfs_qgroup_inherit *inherit);
 int btrfs_qgroup_reserve(struct btrfs_root *root, u64 num_bytes);
-void btrfs_qgroup_free(struct btrfs_root *root, u64 num_bytes);
+void btrfs_qgroup_free_refroot(struct btrfs_fs_info *fs_info,
+                              u64 ref_root, u64 num_bytes);
+static inline void btrfs_qgroup_free(struct btrfs_root *root, u64 num_bytes)
+{
+       return btrfs_qgroup_free_refroot(root->fs_info, root->objectid,
+                                        num_bytes);
+}
+
+/*
+ * TODO: Add proper trace point for it, as btrfs_qgroup_free() is
+ * called by everywhere, can't provide good trace for delayed ref case.
+ */
+static inline void btrfs_qgroup_free_delayed_ref(struct btrfs_fs_info *fs_info,
+                                                u64 ref_root, u64 num_bytes)
+{
+       btrfs_qgroup_free_refroot(fs_info, ref_root, num_bytes);
+}
 
 void assert_qgroups_uptodate(struct btrfs_trans_handle *trans);
 
@@ -81,4 +97,8 @@ int btrfs_verify_qgroup_counts(struct btrfs_fs_info *fs_info, u64 qgroupid,
                               u64 rfer, u64 excl);
 #endif
 
+/* New io_tree based accurate qgroup reserve API */
+int btrfs_qgroup_reserve_data(struct inode *inode, u64 start, u64 len);
+int btrfs_qgroup_release_data(struct inode *inode, u64 start, u64 len);
+int btrfs_qgroup_free_data(struct inode *inode, u64 start, u64 len);
 #endif /* __BTRFS_QGROUP__ */