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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/tools/lib/traceevent/plugin_jbd2.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/tools/lib/traceevent/plugin_jbd2.c')
-rw-r--r--kernel/tools/lib/traceevent/plugin_jbd2.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/kernel/tools/lib/traceevent/plugin_jbd2.c b/kernel/tools/lib/traceevent/plugin_jbd2.c
new file mode 100644
index 000000000..5c23d5bd2
--- /dev/null
+++ b/kernel/tools/lib/traceevent/plugin_jbd2.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License (not later!)
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, see <http://www.gnu.org/licenses>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "event-parse.h"
+
+#define MINORBITS 20
+#define MINORMASK ((1U << MINORBITS) - 1)
+
+#define MAJOR(dev) ((unsigned int) ((dev) >> MINORBITS))
+#define MINOR(dev) ((unsigned int) ((dev) & MINORMASK))
+
+static unsigned long long
+process_jbd2_dev_to_name(struct trace_seq *s, unsigned long long *args)
+{
+ unsigned int dev = args[0];
+
+ trace_seq_printf(s, "%d:%d", MAJOR(dev), MINOR(dev));
+ return 0;
+}
+
+static unsigned long long
+process_jiffies_to_msecs(struct trace_seq *s, unsigned long long *args)
+{
+ unsigned long long jiffies = args[0];
+
+ trace_seq_printf(s, "%lld", jiffies);
+ return jiffies;
+}
+
+int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
+{
+ pevent_register_print_function(pevent,
+ process_jbd2_dev_to_name,
+ PEVENT_FUNC_ARG_STRING,
+ "jbd2_dev_to_name",
+ PEVENT_FUNC_ARG_INT,
+ PEVENT_FUNC_ARG_VOID);
+
+ pevent_register_print_function(pevent,
+ process_jiffies_to_msecs,
+ PEVENT_FUNC_ARG_LONG,
+ "jiffies_to_msecs",
+ PEVENT_FUNC_ARG_LONG,
+ PEVENT_FUNC_ARG_VOID);
+ return 0;
+}
+
+void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
+{
+ pevent_unregister_print_function(pevent, process_jbd2_dev_to_name,
+ "jbd2_dev_to_name");
+
+ pevent_unregister_print_function(pevent, process_jiffies_to_msecs,
+ "jiffies_to_msecs");
+}