/* * 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 longprocess_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 longprocess_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");}