mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-19 02:34:01 +08:00
07a3b8ed48
Use remove_proc_subtree to remove the whole subtree on cleanup, and unwind the registration loop into individual calls. Switch to use proc_create_seq where applicable. Signed-off-by: Christoph Hellwig <hch@lst.de>
94 lines
2.5 KiB
C
94 lines
2.5 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 <linux/uaccess.h>
|
|
#include "jfs_incore.h"
|
|
#include "jfs_filsys.h"
|
|
#include "jfs_debug.h"
|
|
|
|
#ifdef PROC_FS_JFS /* see jfs_debug.h */
|
|
|
|
#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 = {
|
|
.open = jfs_loglevel_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.write = jfs_loglevel_proc_write,
|
|
};
|
|
#endif
|
|
|
|
void jfs_proc_init(void)
|
|
{
|
|
struct proc_dir_entry *base;
|
|
|
|
base = proc_mkdir("fs/jfs", NULL);
|
|
if (!base)
|
|
return;
|
|
|
|
#ifdef CONFIG_JFS_STATISTICS
|
|
proc_create_single("lmstats", 0, base, jfs_lmstats_proc_show);
|
|
proc_create_single("txstats", 0, base, jfs_txstats_proc_show);
|
|
proc_create_single("xtstat", 0, base, jfs_xtstat_proc_show);
|
|
proc_create_single("mpstat", 0, base, jfs_mpstat_proc_show);
|
|
#endif
|
|
#ifdef CONFIG_JFS_DEBUG
|
|
proc_create_single("TxAnchor", 0, base, jfs_txanchor_proc_show);
|
|
proc_create("loglevel", 0, base, &jfs_loglevel_proc_fops);
|
|
#endif
|
|
}
|
|
|
|
void jfs_proc_clean(void)
|
|
{
|
|
remove_proc_subtree("fs/jfs", NULL);
|
|
}
|
|
|
|
#endif /* PROC_FS_JFS */
|