linux-kernel - [PATCH v4 12/63] interval_tree: Fix ITSTATIC usage for *_subtree

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Message-ID: <1e0b4913420f199b3c6d2c536b849e5d79911d21.1758067942.git.jpoimboe@kernel.org>
Date: Wed, 17 Sep 2025 09:03:20 -0700
From: Josh Poimboeuf <jpoimboe@...nel.org>
To: x86@...nel.org
Cc: linux-kernel@...r.kernel.org,
	Petr Mladek <pmladek@...e.com>,
	Miroslav Benes <mbenes@...e.cz>,
	Joe Lawrence <joe.lawrence@...hat.com>,
	live-patching@...r.kernel.org,
	Song Liu <song@...nel.org>,
	laokz <laokz@...mail.com>,
	Jiri Kosina <jikos@...nel.org>,
	Marcos Paulo de Souza <mpdesouza@...e.com>,
	Weinan Liu <wnliu@...gle.com>,
	Fazla Mehrab <a.mehrab@...edance.com>,
	Chen Zhongjin <chenzhongjin@...wei.com>,
	Puranjay Mohan <puranjay@...nel.org>,
	Dylan Hatch <dylanbhatch@...gle.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: [PATCH v4 12/63] interval_tree: Fix ITSTATIC usage for *_subtree_search()

For consistency with the other function templates, change
_subtree_search_*() to use the user-supplied ITSTATIC rather than the
hard-coded 'static'.

Signed-off-by: Josh Poimboeuf <jpoimboe@...nel.org>
---
 include/linux/interval_tree.h               | 4 ++++
 include/linux/interval_tree_generic.h       | 2 +-
 include/linux/mm.h                          | 2 ++
 tools/include/linux/interval_tree_generic.h | 2 +-
 4 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/include/linux/interval_tree.h b/include/linux/interval_tree.h
index 2b8026a399064..9d5791e9f737a 100644
--- a/include/linux/interval_tree.h
+++ b/include/linux/interval_tree.h
@@ -19,6 +19,10 @@ extern void
 interval_tree_remove(struct interval_tree_node *node,
 		     struct rb_root_cached *root);
 
+extern struct interval_tree_node *
+interval_tree_subtree_search(struct interval_tree_node *node,
+			     unsigned long start, unsigned long last);
+
 extern struct interval_tree_node *
 interval_tree_iter_first(struct rb_root_cached *root,
 			 unsigned long start, unsigned long last);
diff --git a/include/linux/interval_tree_generic.h b/include/linux/interval_tree_generic.h
index 1b400f26f63d6..c5a2fed49eb0d 100644
--- a/include/linux/interval_tree_generic.h
+++ b/include/linux/interval_tree_generic.h
@@ -77,7 +77,7 @@ ITSTATIC void ITPREFIX ## _remove(ITSTRUCT *node,			      \
  *   Cond2: start <= ITLAST(node)					      \
  */									      \
 									      \
-static ITSTRUCT *							      \
+ITSTATIC ITSTRUCT *							      \
 ITPREFIX ## _subtree_search(ITSTRUCT *node, ITTYPE start, ITTYPE last)	      \
 {									      \
 	while (true) {							      \
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1ae97a0b8ec75..69baa9a1e2cb4 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -3265,6 +3265,8 @@ void vma_interval_tree_insert_after(struct vm_area_struct *node,
 				    struct rb_root_cached *root);
 void vma_interval_tree_remove(struct vm_area_struct *node,
 			      struct rb_root_cached *root);
+struct vm_area_struct *vma_interval_tree_subtree_search(struct vm_area_struct *node,
+				unsigned long start, unsigned long last);
 struct vm_area_struct *vma_interval_tree_iter_first(struct rb_root_cached *root,
 				unsigned long start, unsigned long last);
 struct vm_area_struct *vma_interval_tree_iter_next(struct vm_area_struct *node,
diff --git a/tools/include/linux/interval_tree_generic.h b/tools/include/linux/interval_tree_generic.h
index 1b400f26f63d6..c5a2fed49eb0d 100644
--- a/tools/include/linux/interval_tree_generic.h
+++ b/tools/include/linux/interval_tree_generic.h
@@ -77,7 +77,7 @@ ITSTATIC void ITPREFIX ## _remove(ITSTRUCT *node,			      \
  *   Cond2: start <= ITLAST(node)					      \
  */									      \
 									      \
-static ITSTRUCT *							      \
+ITSTATIC ITSTRUCT *							      \
 ITPREFIX ## _subtree_search(ITSTRUCT *node, ITTYPE start, ITTYPE last)	      \
 {									      \
 	while (true) {							      \
-- 
2.50.0