From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Namhyung Kim <namhyung@kernel.org>,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Dave Hansen <dave@sr71.net>
Subject: [RFC][PATCH 03/10] x86/tlb/trace: Export enums in used by tlb_flush tracepoint
Date: Fri, 27 Mar 2015 17:37:07 -0400 [thread overview]
Message-ID: <20150327213813.594117255@goodmis.org> (raw)
In-Reply-To: 20150327213704.857765144@goodmis.org
[-- Attachment #1: 0003-x86-tlb-trace-Export-enums-in-used-by-tlb_flush-trac.patch --]
[-- Type: text/plain, Size: 1644 bytes --]
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Have the enums used in __print_symbolic() by the trace_tlb_flush()
tracepoint exported to userpace such that they can be parsed by
userspace tools.
Cc: Dave Hansen <dave@sr71.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/trace/events/tlb.h | 30 +++++++++++++++++++++++++-----
1 file changed, 25 insertions(+), 5 deletions(-)
diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h
index 0e7635765153..bee7e2cd97e7 100644
--- a/include/trace/events/tlb.h
+++ b/include/trace/events/tlb.h
@@ -7,11 +7,31 @@
#include <linux/mm_types.h>
#include <linux/tracepoint.h>
-#define TLB_FLUSH_REASON \
- { TLB_FLUSH_ON_TASK_SWITCH, "flush on task switch" }, \
- { TLB_REMOTE_SHOOTDOWN, "remote shootdown" }, \
- { TLB_LOCAL_SHOOTDOWN, "local shootdown" }, \
- { TLB_LOCAL_MM_SHOOTDOWN, "local mm shootdown" }
+#define TLB_FLUSH_REASON \
+ EM( TLB_FLUSH_ON_TASK_SWITCH, "flush on task switch" ) \
+ EM( TLB_REMOTE_SHOOTDOWN, "remote shootdown" ) \
+ EM( TLB_LOCAL_SHOOTDOWN, "local shootdown" ) \
+ EMe( TLB_LOCAL_MM_SHOOTDOWN, "local mm shootdown" )
+
+/*
+ * First define the enums in TLB_FLUSH_REASON to be exported to userspace
+ * via TRACE_DEFINE_ENUM().
+ */
+#undef EM
+#undef EMe
+#define EM(a,b) TRACE_DEFINE_ENUM(a);
+#define EMe(a,b) TRACE_DEFINE_ENUM(a);
+
+TLB_FLUSH_REASON
+
+/*
+ * Now redefine the EM() and EMe() macros to map the enums to the strings
+ * that will be printed in the output.
+ */
+#undef EM
+#undef EMe
+#define EM(a,b) { a, b },
+#define EMe(a,b) { a, b }
TRACE_EVENT_CONDITION(tlb_flush,
--
2.1.4
next prev parent reply other threads:[~2015-03-27 21:39 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-27 21:37 [RFC][PATCH 00/10] tracing: Use TRACE_DEFINE_ENUM() to show enum values Steven Rostedt
2015-03-27 21:37 ` [RFC][PATCH 01/10] tracing: Add TRACE_DEFINE_ENUM() macro to map enums to their values Steven Rostedt
2015-03-30 2:27 ` Namhyung Kim
2015-03-27 21:37 ` [RFC][PATCH 02/10] tracing: Allow for modules to export their trace enums as well Steven Rostedt
2015-03-30 2:10 ` Rusty Russell
2015-03-30 2:41 ` Namhyung Kim
2015-03-30 13:48 ` Steven Rostedt
2015-03-27 21:37 ` Steven Rostedt [this message]
2015-03-27 21:37 ` [RFC][PATCH 04/10] net/9p/tracing: Export enums in tracepoints to userspace Steven Rostedt
2015-03-27 21:37 ` [RFC][PATCH 05/10] f2fs: Export the enums in the " Steven Rostedt
2015-03-30 2:47 ` Namhyung Kim
2015-03-30 13:49 ` Steven Rostedt
2015-03-27 21:37 ` [RFC][PATCH 06/10] irq/tracing: Export enums in tracepoints to user space Steven Rostedt
2015-03-27 21:46 ` Steven Rostedt
2015-03-27 21:37 ` [RFC][PATCH 07/10] mm: tracing: " Steven Rostedt
2015-03-27 21:37 ` [RFC][PATCH 08/10] SUNRPC: " Steven Rostedt
2015-03-27 21:37 ` [RFC][PATCH 09/10] v4l: Export enums used by " Steven Rostedt
2015-03-28 13:00 ` Xie XiuQi
2015-03-28 16:20 ` Steven Rostedt
2015-03-27 21:37 ` [RFC][PATCH 10/10] writeback: Export enums used by tracepoint " Steven Rostedt
2015-03-30 3:38 ` [RFC][PATCH 00/10] tracing: Use TRACE_DEFINE_ENUM() to show enum values Masami Hiramatsu
2015-03-30 14:07 ` Steven Rostedt
2015-03-31 7:36 ` Masami Hiramatsu
2015-03-31 13:26 ` Steven Rostedt
2015-04-01 7:23 ` Masami Hiramatsu
2015-03-31 21:30 ` Dave Chinner
2015-03-31 22:56 ` Steven Rostedt
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