linux-kernel - [PATCH 07/30] radix-tree: remove unused looping macros

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Date:	Wed,  6 Apr 2016 17:21:16 -0400
From:	Matthew Wilcox <willy@...ux.intel.com>
To:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Ross Zwisler <ross.zwisler@...ux.intel.com>, linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org,
	Konstantin Khlebnikov <koct9i@...il.com>,
	Kirill Shutemov <kirill.shutemov@...ux.intel.com>,
	Jan Kara <jack@...e.com>, Neil Brown <neilb@...e.de>,
	Matthew Wilcox <willy@...ux.intel.com>
Subject: [PATCH 07/30] radix-tree: remove unused looping macros

From: Ross Zwisler <ross.zwisler@...ux.intel.com>

radix_tree_for_each_chunk() and radix_tree_for_each_chunk_slot()
have never been used in the kernel since their introduction in 2012,
so remove them.

Signed-off-by: Ross Zwisler <ross.zwisler@...ux.intel.com>
Signed-off-by: Matthew Wilcox <willy@...ux.intel.com>
---
 include/linux/radix-tree.h | 28 ----------------------------
 1 file changed, 28 deletions(-)

diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h
index 5ce5a1e0ecc5..e1512a607709 100644
--- a/include/linux/radix-tree.h
+++ b/include/linux/radix-tree.h
@@ -479,34 +479,6 @@ radix_tree_next_slot(void **slot, struct radix_tree_iter *iter, unsigned flags)
 }
 
 /**
- * radix_tree_for_each_chunk - iterate over chunks
- *
- * @slot:	the void** variable for pointer to chunk first slot
- * @root:	the struct radix_tree_root pointer
- * @iter:	the struct radix_tree_iter pointer
- * @start:	iteration starting index
- * @flags:	RADIX_TREE_ITER_* and tag index
- *
- * Locks can be released and reacquired between iterations.
- */
-#define radix_tree_for_each_chunk(slot, root, iter, start, flags)	\
-	for (slot = radix_tree_iter_init(iter, start) ;			\
-	      (slot = radix_tree_next_chunk(root, iter, flags)) ;)
-
-/**
- * radix_tree_for_each_chunk_slot - iterate over slots in one chunk
- *
- * @slot:	the void** variable, at the beginning points to chunk first slot
- * @iter:	the struct radix_tree_iter pointer
- * @flags:	RADIX_TREE_ITER_*, should be constant
- *
- * This macro is designed to be nested inside radix_tree_for_each_chunk().
- * @slot points to the radix tree slot, @iter->index contains its index.
- */
-#define radix_tree_for_each_chunk_slot(slot, iter, flags)		\
-	for (; slot ; slot = radix_tree_next_slot(slot, iter, flags))
-
-/**
  * radix_tree_for_each_slot - iterate over non-empty slots
  *
  * @slot:	the void** variable for pointer to slot
-- 
2.8.0.rc3