linux/fs/jfs/jfs_debug.c
Thomas Gleixner 1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00

81 lines
1.9 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) International Business Machines Corp., 2000-2004
* Portions Copyright (C) Christoph Hellwig, 2001-2002
*/
#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 */