linux-kernel - [PATCH v5 14/35] swait.h: move declarations to swait

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Date: Mon, 12 Feb 2024 12:54:39 +0100
From: Max Kellermann <max.kellermann@...os.com>
To: linux-kernel@...r.kernel.org
Cc: Max Kellermann <max.kellermann@...os.com>
Subject: [PATCH v5 14/35] swait.h: move declarations to swait_types.h

By providing declarations in a lean header, we can reduce header
dependencies.

Signed-off-by: Max Kellermann <max.kellermann@...os.com>
---
 include/linux/swait.h       | 13 +------------
 include/linux/swait_types.h | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+), 12 deletions(-)
 create mode 100644 include/linux/swait_types.h

diff --git a/include/linux/swait.h b/include/linux/swait.h
index 68c2e30edb1c..4a4a240b337e 100644
--- a/include/linux/swait.h
+++ b/include/linux/swait.h
@@ -2,6 +2,7 @@
 #ifndef _LINUX_SWAIT_H
 #define _LINUX_SWAIT_H
 
+#include <linux/swait_types.h>
 #include <linux/list.h>
 #include <linux/stddef.h>
 #include <linux/spinlock_types.h>
@@ -38,18 +39,6 @@
  * wait queues in most cases.
  */
 
-struct task_struct;
-
-struct swait_queue_head {
-	raw_spinlock_t		lock;
-	struct list_head	task_list;
-};
-
-struct swait_queue {
-	struct task_struct	*task;
-	struct list_head	task_list;
-};
-
 #define __SWAITQUEUE_INITIALIZER(name) {				\
 	.task		= current,					\
 	.task_list	= LIST_HEAD_INIT((name).task_list),		\
diff --git a/include/linux/swait_types.h b/include/linux/swait_types.h
new file mode 100644
index 000000000000..316038879a37
--- /dev/null
+++ b/include/linux/swait_types.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_SWAIT_TYPES_H
+#define _LINUX_SWAIT_TYPES_H
+
+#include <linux/list.h>
+#include <linux/spinlock_types.h>
+
+struct task_struct;
+
+struct swait_queue_head {
+	raw_spinlock_t		lock;
+	struct list_head	task_list;
+};
+
+struct swait_queue {
+	struct task_struct	*task;
+	struct list_head	task_list;
+};
+
+#endif /* _LINUX_SWAIT_TYPES_H */
-- 
2.39.2