btrfs: export space_info_add_*_bytes

Prep work for consolidating all of the space_info code into one file.
We need to export these so multiple files can use them.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/extent-tree.c

@@ -75,12 +75,6 @@ static void dump_space_info(struct btrfs_fs_info *fs_info,
 			    int dump_block_groups);
 static int block_rsv_use_bytes(struct btrfs_block_rsv *block_rsv,
 			       u64 num_bytes);
-static void space_info_add_new_bytes(struct btrfs_fs_info *fs_info,
-				     struct btrfs_space_info *space_info,
-				     u64 num_bytes);
-static void space_info_add_old_bytes(struct btrfs_fs_info *fs_info,
-				     struct btrfs_space_info *space_info,
-				     u64 num_bytes);
 
 static noinline int
 block_group_cache_done(struct btrfs_block_group_cache *cache)
@@ -3908,7 +3902,7 @@ static void update_space_info(struct btrfs_fs_info *info, u64 flags,
 	found->bytes_readonly += bytes_readonly;
 	if (total_bytes > 0)
 		found->full = 0;
-	space_info_add_new_bytes(info, found, total_bytes -
+	btrfs_space_info_add_new_bytes(info, found, total_bytes -
 				       bytes_used - bytes_readonly);
 	spin_unlock(&found->lock);
 	*space_info = found;
@@ -5108,7 +5102,8 @@ static int wait_reserve_ticket(struct btrfs_fs_info *fs_info,
 	spin_unlock(&space_info->lock);
 
 	if (reclaim_bytes)
-		space_info_add_old_bytes(fs_info, space_info, reclaim_bytes);
+		btrfs_space_info_add_old_bytes(fs_info, space_info,
+					       reclaim_bytes);
 	return ret;
 }
 
@@ -5225,7 +5220,8 @@ static int __reserve_metadata_bytes(struct btrfs_fs_info *fs_info,
 	spin_unlock(&space_info->lock);
 
 	if (reclaim_bytes)
-		space_info_add_old_bytes(fs_info, space_info, reclaim_bytes);
+		btrfs_space_info_add_old_bytes(fs_info, space_info,
+					       reclaim_bytes);
 	ASSERT(list_empty(&ticket.list));
 	return ret;
 }
@@ -5391,8 +5387,8 @@ void btrfs_migrate_to_delayed_refs_rsv(struct btrfs_fs_info *fs_info,
 		trace_btrfs_space_reservation(fs_info, "delayed_refs_rsv",
 					      0, num_bytes, 1);
 	if (to_free)
-		space_info_add_old_bytes(fs_info, delayed_refs_rsv->space_info,
-					 to_free);
+		btrfs_space_info_add_old_bytes(fs_info,
+				delayed_refs_rsv->space_info, to_free);
 }
 
 /**
@@ -5435,7 +5431,7 @@ int btrfs_delayed_refs_rsv_refill(struct btrfs_fs_info *fs_info,
  * This is for space we already have accounted in space_info->bytes_may_use, so
  * basically when we're returning space from block_rsv's.
  */
-static void space_info_add_old_bytes(struct btrfs_fs_info *fs_info,
+void btrfs_space_info_add_old_bytes(struct btrfs_fs_info *fs_info,
 				    struct btrfs_space_info *space_info,
 				    u64 num_bytes)
 {
@@ -5495,7 +5491,7 @@ static void space_info_add_old_bytes(struct btrfs_fs_info *fs_info,
  * space_info->bytes_may_use yet.  So if we allocate a chunk or unpin an extent
  * we use this helper.
  */
-static void space_info_add_new_bytes(struct btrfs_fs_info *fs_info,
+void btrfs_space_info_add_new_bytes(struct btrfs_fs_info *fs_info,
 				    struct btrfs_space_info *space_info,
 				    u64 num_bytes)
 {
@@ -5581,7 +5577,7 @@ static u64 block_rsv_release_bytes(struct btrfs_fs_info *fs_info,
 			spin_unlock(&dest->lock);
 		}
 		if (num_bytes)
-			space_info_add_old_bytes(fs_info, space_info,
+			btrfs_space_info_add_old_bytes(fs_info, space_info,
 						       num_bytes);
 	}
 	if (qgroup_to_release_ret)
@@ -6758,8 +6754,8 @@ static int unpin_extent_range(struct btrfs_fs_info *fs_info,
 			spin_unlock(&global_rsv->lock);
 			/* Add to any tickets we may have */
 			if (len)
-				space_info_add_new_bytes(fs_info, space_info,
-							 len);
+				btrfs_space_info_add_new_bytes(fs_info,
+						space_info, len);
 		}
 		spin_unlock(&space_info->lock);
 	}

fs/btrfs/space-info.h

@@ -75,4 +75,11 @@ static inline bool btrfs_mixed_space_info(struct btrfs_space_info *space_info)
 		(space_info->flags & BTRFS_BLOCK_GROUP_DATA));
 }
 
+void btrfs_space_info_add_new_bytes(struct btrfs_fs_info *fs_info,
+				    struct btrfs_space_info *space_info,
+				    u64 num_bytes);
+void btrfs_space_info_add_old_bytes(struct btrfs_fs_info *fs_info,
+				    struct btrfs_space_info *space_info,
+				    u64 num_bytes);
+
 #endif /* BTRFS_SPACE_INFO_H */