2 * Copyright (C) International Business Machines Corp., 2000-2004
3 * Portions Copyright (C) Christoph Hellwig, 2001-2002
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include <linux/ctype.h>
22 #include <linux/module.h>
23 #include <linux/proc_fs.h>
24 #include <linux/seq_file.h>
25 #include <linux/uaccess.h>
26 #include "jfs_incore.h"
27 #include "jfs_filsys.h"
28 #include "jfs_debug.h"
30 #ifdef PROC_FS_JFS /* see jfs_debug.h */
32 #ifdef CONFIG_JFS_DEBUG
33 static int jfs_loglevel_proc_show(struct seq_file *m, void *v)
35 seq_printf(m, "%d\n", jfsloglevel);
39 static int jfs_loglevel_proc_open(struct inode *inode, struct file *file)
41 return single_open(file, jfs_loglevel_proc_show, NULL);
44 static ssize_t jfs_loglevel_proc_write(struct file *file,
45 const char __user *buffer, size_t count, loff_t *ppos)
49 if (get_user(c, buffer))
52 /* yes, I know this is an ASCIIism. --hch */
53 if (c < '0' || c > '9')
55 jfsloglevel = c - '0';
59 static const struct file_operations jfs_loglevel_proc_fops = {
60 .open = jfs_loglevel_proc_open,
63 .release = single_release,
64 .write = jfs_loglevel_proc_write,
68 void jfs_proc_init(void)
70 struct proc_dir_entry *base;
72 base = proc_mkdir("fs/jfs", NULL);
76 #ifdef CONFIG_JFS_STATISTICS
77 proc_create_single("lmstats", 0, base, jfs_lmstats_proc_show);
78 proc_create_single("txstats", 0, base, jfs_txstats_proc_show);
79 proc_create_single("xtstat", 0, base, jfs_xtstat_proc_show);
80 proc_create_single("mpstat", 0, base, jfs_mpstat_proc_show);
82 #ifdef CONFIG_JFS_DEBUG
83 proc_create_single("TxAnchor", 0, base, jfs_txanchor_proc_show);
84 proc_create("loglevel", 0, base, &jfs_loglevel_proc_fops);
88 void jfs_proc_clean(void)
90 remove_proc_subtree("fs/jfs", NULL);
93 #endif /* PROC_FS_JFS */