110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
/*
|
|
* Copyright (C) International Business Machines Corp., 2000-2004
|
|
* Portions Copyright (C) Christoph Hellwig, 2001-2002
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#include <linux/fs.h>
|
|
#include <linux/ctype.h>
|
|
#include <linux/module.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/seq_file.h>
|
|
#include <asm/uaccess.h>
|
|
#include "jfs_incore.h"
|
|
#include "jfs_filsys.h"
|
|
#include "jfs_debug.h"
|
|
|
|
#ifdef PROC_FS_JFS /* see jfs_debug.h */
|
|
|
|
static struct proc_dir_entry *base;
|
|
#ifdef CONFIG_JFS_DEBUG
|
|
static int jfs_loglevel_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
seq_printf(m, "%d\n", jfsloglevel);
|
|
return 0;
|
|
}
|
|
|
|
static int jfs_loglevel_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, jfs_loglevel_proc_show, NULL);
|
|
}
|
|
|
|
static ssize_t jfs_loglevel_proc_write(struct file *file,
|
|
const char __user *buffer, size_t count, loff_t *ppos)
|
|
{
|
|
char c;
|
|
|
|
if (get_user(c, buffer))
|
|
return -EFAULT;
|
|
|
|
/* yes, I know this is an ASCIIism. --hch */
|
|
if (c < '0' || c > '9')
|
|
return -EINVAL;
|
|
jfsloglevel = c - '0';
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations jfs_loglevel_proc_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = jfs_loglevel_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.write = jfs_loglevel_proc_write,
|
|
};
|
|
#endif
|
|
|
|
static struct {
|
|
const char *name;
|
|
const struct file_operations *proc_fops;
|
|
} Entries[] = {
|
|
#ifdef CONFIG_JFS_STATISTICS
|
|
{ "lmstats", &jfs_lmstats_proc_fops, },
|
|
{ "txstats", &jfs_txstats_proc_fops, },
|
|
{ "xtstat", &jfs_xtstat_proc_fops, },
|
|
{ "mpstat", &jfs_mpstat_proc_fops, },
|
|
#endif
|
|
#ifdef CONFIG_JFS_DEBUG
|
|
{ "TxAnchor", &jfs_txanchor_proc_fops, },
|
|
{ "loglevel", &jfs_loglevel_proc_fops }
|
|
#endif
|
|
};
|
|
#define NPROCENT ARRAY_SIZE(Entries)
|
|
|
|
void jfs_proc_init(void)
|
|
{
|
|
int i;
|
|
|
|
if (!(base = proc_mkdir("fs/jfs", NULL)))
|
|
return;
|
|
|
|
for (i = 0; i < NPROCENT; i++)
|
|
proc_create(Entries[i].name, 0, base, Entries[i].proc_fops);
|
|
}
|
|
|
|
void jfs_proc_clean(void)
|
|
{
|
|
int i;
|
|
|
|
if (base) {
|
|
for (i = 0; i < NPROCENT; i++)
|
|
remove_proc_entry(Entries[i].name, base);
|
|
remove_proc_entry("fs/jfs", NULL);
|
|
}
|
|
}
|
|
|
|
#endif /* PROC_FS_JFS */
|