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/*
* Berkeley Lab Checkpoint/Restart (BLCR) for Linux is Copyright (c)
* 2008, The Regents of the University of California, through Lawrence
* Berkeley National Laboratory (subject to receipt of any required
* approvals from the U.S. Dept. of Energy). All rights reserved.
*
* Portions may be copyrighted by others, as may be noted in specific
* copyright notices within specific files.
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id: cr_proc.c,v 1.19 2008/06/19 07:47:57 phargrov Exp $
*/
#include "cr_module.h"
#include <linux/proc_fs.h>
#include <linux/init.h>
/*
* Our proc_fs entries
*/
static struct proc_dir_entry *proc_checkpoint;
static struct proc_dir_entry *proc_ctrl;
/**
* cr_proc_init - Initialization code
*
* DESCRIPTION:
* This function registers /proc/checkpoint and /proc/checkpoint/ctrl
*/
int __init cr_proc_init(void)
{
CR_KTRACE_FUNC_ENTRY();
proc_checkpoint = create_proc_entry("checkpoint", S_IFDIR, cr_proc_root);
if (proc_checkpoint == NULL) {
CR_ERR("proc_create_entry(/proc/checkpoint/) failed");
return -ENOMEM;
}
proc_ctrl = create_proc_entry("ctrl", S_IFREG | S_IRUGO | S_IWUGO,
proc_checkpoint);
if (proc_ctrl == NULL) {
CR_ERR("proc_create_entry(/proc/checkpoint/ctrl) failed");
return -ENOMEM;
}
proc_ctrl->proc_fops = &cr_ctrl_fops;
return 0;
}
/**
* cr_proc_cleanup - Initialization code
*
* DESCRIPTION:
* This function removes /proc/checkpoint and /proc/checkpoint/ctrl
*/
void cr_proc_cleanup(void)
{
CR_KTRACE_FUNC_ENTRY();
remove_proc_entry("ctrl", proc_checkpoint);
remove_proc_entry("checkpoint", cr_proc_root);
}
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