btrfs: move btrfs_debug_check_extent_io_range into extent-io-tree.c

This helper is used by a lot of the core extent_io_tree helpers, so
temporarily export it and move it into extent-io-tree.c in order to make
it straightforward to migrate the helpers in batches.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/extent-io-tree.c

@@ -4,6 +4,7 @@
 #include <trace/events/btrfs.h>
 #include "ctree.h"
 #include "extent-io-tree.h"
+#include "btrfs_inode.h"
 
 static struct kmem_cache *extent_state_cache;
 
@@ -43,6 +44,24 @@ static inline void btrfs_extent_state_leak_debug_check(void)
 		kmem_cache_free(extent_state_cache, state);
 	}
 }
+
+void __btrfs_debug_check_extent_io_range(const char *caller,
+					 struct extent_io_tree *tree, u64 start,
+					 u64 end)
+{
+	struct inode *inode = tree->private_data;
+	u64 isize;
+
+	if (!inode || !is_data_inode(inode))
+		return;
+
+	isize = i_size_read(inode);
+	if (end >= PAGE_SIZE && (end % 2) == 0 && end != isize - 1) {
+		btrfs_debug_rl(BTRFS_I(inode)->root->fs_info,
+		    "%s: ino %llu isize %llu odd range [%llu,%llu]",
+			caller, btrfs_ino(BTRFS_I(inode)), isize, start, end);
+	}
+}
 #else
 #define btrfs_leak_debug_add_state(state)		do {} while (0)
 #define btrfs_leak_debug_del_state(state)		do {} while (0)

fs/btrfs/extent-io-tree.h

@@ -269,4 +269,14 @@ static inline bool extent_state_in_tree(const struct extent_state *state)
 	return !RB_EMPTY_NODE(&state->rb_node);
 }
 
+#ifdef CONFIG_BTRFS_DEBUG
+void __btrfs_debug_check_extent_io_range(const char *caller,
+					 struct extent_io_tree *tree, u64 start,
+					 u64 end);
+#define btrfs_debug_check_extent_io_range(tree, start, end)		\
+	__btrfs_debug_check_extent_io_range(__func__, (tree), (start), (end))
+#else
+#define btrfs_debug_check_extent_io_range(c, s, e)	do {} while (0)
+#endif
+
 #endif /* BTRFS_EXTENT_IO_TREE_H */

fs/btrfs/extent_io.c

@@ -80,29 +80,9 @@ void btrfs_extent_buffer_leak_debug_check(struct btrfs_fs_info *fs_info)
 	}
 	spin_unlock_irqrestore(&fs_info->eb_leak_lock, flags);
 }
-
-#define btrfs_debug_check_extent_io_range(tree, start, end)		\
-	__btrfs_debug_check_extent_io_range(__func__, (tree), (start), (end))
-static inline void __btrfs_debug_check_extent_io_range(const char *caller,
-		struct extent_io_tree *tree, u64 start, u64 end)
-{
-	struct inode *inode = tree->private_data;
-	u64 isize;
-
-	if (!inode || !is_data_inode(inode))
-		return;
-
-	isize = i_size_read(inode);
-	if (end >= PAGE_SIZE && (end % 2) == 0 && end != isize - 1) {
-		btrfs_debug_rl(BTRFS_I(inode)->root->fs_info,
-		    "%s: ino %llu isize %llu odd range [%llu,%llu]",
-			caller, btrfs_ino(BTRFS_I(inode)), isize, start, end);
-	}
-}
 #else
 #define btrfs_leak_debug_add_eb(eb)			do {} while (0)
 #define btrfs_leak_debug_del_eb(eb)			do {} while (0)
-#define btrfs_debug_check_extent_io_range(c, s, e)	do {} while (0)
 #endif
 
 struct tree_entry {