From: Zhi Yong Wu <wuzhy@xxxxxxxxxxxxxxxxxx>
One root structure hot_info is defined, is hooked
up in super_block, and will be used to hold rb trees
root, hash list root and some other information, etc.
Signed-off-by: Zhi Yong Wu <wuzhy@xxxxxxxxxxxxxxxxxx>
---
include/linux/fs.h | 4 ++++
include/linux/hot_track.h | 26 ++++++++++++++++++++++++++
2 files changed, 30 insertions(+), 0 deletions(-)
create mode 100644 include/linux/hot_track.h
diff --git a/include/linux/fs.h b/include/linux/fs.h
index aa11047..6229895 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -415,6 +415,7 @@ struct inodes_stat_t {
#include <linux/migrate_mode.h>
#include <linux/uidgid.h>
#include <linux/lockdep.h>
+#include <linux/hot_track.h>
#include <asm/byteorder.h>
@@ -1578,6 +1579,9 @@ struct super_block {
/* Being remounted read-only */
int s_readonly_remount;
+
+ /* Hot data tracking info*/
+ struct hot_info s_hotinfo;
};
/* superblock cache pruning functions */
diff --git a/include/linux/hot_track.h b/include/linux/hot_track.h
new file mode 100644
index 0000000..5716b93
--- /dev/null
+++ b/include/linux/hot_track.h
@@ -0,0 +1,26 @@
+/*
+ * include/linux/hot_track.h
+ *
+ * This file has definitions for VFS hot data tracking
+ * structures etc.
+ *
+ * Copyright (C) 2012 IBM Corp. All rights reserved.
+ * Written by Zhi Yong Wu <wuzhy@xxxxxxxxxxxxxxxxxx>
+ * Ben Chociej <bchociej@xxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ */
+
+#ifndef _LINUX_HOTTRACK_H
+#define _LINUX_HOTTRACK_H
+
+#include <linux/types.h>
+#include <linux/rbtree.h>
+#include <linux/kref.h>
+
+struct hot_info {
+};
+
+#endif /* _LINUX_HOTTRACK_H */
--
1.7.6.5
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
