path: root/kernel
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authorPaul Gortmaker <>2015-09-27 19:14:57 -0400
committerPaul E. McKenney <>2015-12-04 12:27:29 -0800
commit47dbc90663f697a4515a8dd5c99ae43dba108cb4 (patch)
treebe9b2871cb8cae98f5e745e4ec1220f012b9ed87 /kernel
parent3dc5dbe9a1b815b659a6b04540fc6fd4b4e3831b (diff)
kernel: Make rcu/tree_trace.c explicitly non-modular
The Kconfig currently controlling compilation of this code is: init/Kconfig:config TREE_RCU_TRACE init/Kconfig: def_bool RCU_TRACE && ( TREE_RCU || PREEMPT_RCU ) ...meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the file there is no doubt it is builtin-only. Since module_init translates to device_initcall in the non-modular case, the init ordering remains unchanged with this commit. We could consider moving this to an earlier initcall if desired. We don't replace module.h with init.h since the file already has that. We also delete the moduleparam.h include that is left over from commit 64db4cfff99c04cd5f550357edcc8780f96b54a2 (""Tree RCU": scalable classic RCU implementation") since it is not needed here either. We morph some tags like MODULE_AUTHOR into the comments at the top of the file for documentation purposes. Cc: "Paul E. McKenney" <> Cc: Josh Triplett <> Reviewed-by: Josh Triplett <> Cc: Steven Rostedt <> Cc: Mathieu Desnoyers <> Cc: Lai Jiangshan <> Signed-off-by: Paul Gortmaker <> Signed-off-by: Paul E. McKenney <>
Diffstat (limited to 'kernel')
1 files changed, 3 insertions, 16 deletions
diff --git a/kernel/rcu/tree_trace.c b/kernel/rcu/tree_trace.c
index 8efaba870d96..82aca98b18f8 100644
--- a/kernel/rcu/tree_trace.c
+++ b/kernel/rcu/tree_trace.c
@@ -1,5 +1,5 @@
- * Read-Copy Update tracing for classic implementation
+ * Read-Copy Update tracing for hierarchical implementation.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -16,6 +16,7 @@
* Copyright IBM Corporation, 2008
+ * Author: Paul E. McKenney
* Papers:
@@ -33,9 +34,7 @@
#include <linux/sched.h>
#include <linux/atomic.h>
#include <linux/bitops.h>
-#include <linux/module.h>
#include <linux/completion.h>
-#include <linux/moduleparam.h>
#include <linux/percpu.h>
#include <linux/notifier.h>
#include <linux/cpu.h>
@@ -487,16 +486,4 @@ free_out:
return 1;
-static void __exit rcutree_trace_cleanup(void)
- debugfs_remove_recursive(rcudir);
-MODULE_AUTHOR("Paul E. McKenney");
-MODULE_DESCRIPTION("Read-Copy Update tracing for hierarchical implementation");