linux-kernel - [PATCH 1/4] mm: move enum tlb_flush

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Message-Id: <1422451064-109023-2-git-send-email-kirill.shutemov@linux.intel.com>
Date:	Wed, 28 Jan 2015 15:17:41 +0200
From:	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Guenter Roeck <linux@...ck-us.net>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: [PATCH 1/4] mm: move enum tlb_flush_reason into <trace/events/tlb.h>

The only user of tlb_flush_reason is trace_tlb_flush*(). There's no
reason to define it in mm_types.h

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
---
 include/linux/mm_types.h   |  8 --------
 include/trace/events/tlb.h | 15 ++++++++++++---
 2 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 199a03aab8dc..5dfdd5ed5254 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -527,14 +527,6 @@ struct vm_special_mapping
 	struct page **pages;
 };
 
-enum tlb_flush_reason {
-	TLB_FLUSH_ON_TASK_SWITCH,
-	TLB_REMOTE_SHOOTDOWN,
-	TLB_LOCAL_SHOOTDOWN,
-	TLB_LOCAL_MM_SHOOTDOWN,
-	NR_TLB_FLUSH_REASONS,
-};
-
  /*
   * A swap entry has to fit into a "unsigned long", as the entry is hidden
   * in the "index" field of the swapper address space.
diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h
index 13391d288107..1f764ff60cf6 100644
--- a/include/trace/events/tlb.h
+++ b/include/trace/events/tlb.h
@@ -4,9 +4,18 @@
 #if !defined(_TRACE_TLB_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_TLB_H
 
-#include <linux/mm_types.h>
 #include <linux/tracepoint.h>
 
+#ifndef TRACE_HEADER_MULTI_READ
+enum tlb_flush_reason {
+	TLB_FLUSH_ON_TASK_SWITCH,
+	TLB_REMOTE_SHOOTDOWN,
+	TLB_LOCAL_SHOOTDOWN,
+	TLB_LOCAL_MM_SHOOTDOWN,
+	NR_TLB_FLUSH_REASONS,
+};
+#endif
+
 #define TLB_FLUSH_REASON	\
 	{ TLB_FLUSH_ON_TASK_SWITCH,	"flush on task switch" },	\
 	{ TLB_REMOTE_SHOOTDOWN,		"remote shootdown" },		\
@@ -15,11 +24,11 @@
 
 TRACE_EVENT(tlb_flush,
 
-	TP_PROTO(int reason, unsigned long pages),
+	TP_PROTO(enum tlb_flush_reason reason, unsigned long pages),
 	TP_ARGS(reason, pages),
 
 	TP_STRUCT__entry(
-		__field(	  int, reason)
+		__field(enum tlb_flush_reason, reason)
 		__field(unsigned long,  pages)
 	),
 
-- 
2.1.4

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