1/*
 2 * debug.h - NTFS kernel debug support. Part of the Linux-NTFS project.
 3 *
 4 * Copyright (c) 2001-2004 Anton Altaparmakov
 5 *
 6 * This program/include file is free software; you can redistribute it and/or
 7 * modify it under the terms of the GNU General Public License as published
 8 * by the Free Software Foundation; either version 2 of the License, or
 9 * (at your option) any later version.
10 *
11 * This program/include file is distributed in the hope that it will be
12 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program (in the main directory of the Linux-NTFS
18 * distribution in the file COPYING); if not, write to the Free Software
19 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20 */
21
22#ifndef _LINUX_NTFS_DEBUG_H
23#define _LINUX_NTFS_DEBUG_H
24
25#include <linux/fs.h>
26
27#include "runlist.h"
28
29#ifdef DEBUG
30
31extern int debug_msgs;
32
33extern __printf(4, 5)
34void __ntfs_debug(const char *file, int line, const char *function,
35		  const char *format, ...);
36/**
37 * ntfs_debug - write a debug level message to syslog
38 * @f:		a printf format string containing the message
39 * @...:	the variables to substitute into @f
40 *
41 * ntfs_debug() writes a DEBUG level message to the syslog but only if the
42 * driver was compiled with -DDEBUG. Otherwise, the call turns into a NOP.
43 */
44#define ntfs_debug(f, a...)						\
45	__ntfs_debug(__FILE__, __LINE__, __func__, f, ##a)
46
47extern void ntfs_debug_dump_runlist(const runlist_element *rl);
48
49#else	/* !DEBUG */
50
51#define ntfs_debug(fmt, ...)						\
52do {									\
53	if (0)								\
54		no_printk(fmt, ##__VA_ARGS__);				\
55} while (0)
56
57#define ntfs_debug_dump_runlist(rl)	do {} while (0)
58
59#endif	/* !DEBUG */
60
61extern  __printf(3, 4)
62void __ntfs_warning(const char *function, const struct super_block *sb,
63		    const char *fmt, ...);
64#define ntfs_warning(sb, f, a...)	__ntfs_warning(__func__, sb, f, ##a)
65
66extern  __printf(3, 4)
67void __ntfs_error(const char *function, const struct super_block *sb,
68		  const char *fmt, ...);
69#define ntfs_error(sb, f, a...)		__ntfs_error(__func__, sb, f, ##a)
70
71#endif /* _LINUX_NTFS_DEBUG_H */