1/*
2 * Copyright (c) 2011 Red Hat, Inc.  All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it would be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write the Free Software Foundation,
15 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
16 */
17
18#include "xfs.h"
19#include "xfs_fs.h"
20#include "xfs_log_format.h"
21#include "xfs_trans_resv.h"
22#include "xfs_sb.h"
23#include "xfs_ag.h"
24#include "xfs_mount.h"
25
26/*
27 * XFS logging functions
28 */
29static void
30__xfs_printk(
31	const char		*level,
32	const struct xfs_mount	*mp,
33	struct va_format	*vaf)
34{
35	if (mp && mp->m_fsname) {
36		printk("%sXFS (%s): %pV\n", level, mp->m_fsname, vaf);
37		return;
38	}
39	printk("%sXFS: %pV\n", level, vaf);
40}
41
42#define define_xfs_printk_level(func, kern_level)		\
43void func(const struct xfs_mount *mp, const char *fmt, ...)	\
44{								\
45	struct va_format	vaf;				\
46	va_list			args;				\
47								\
48	va_start(args, fmt);					\
49								\
50	vaf.fmt = fmt;						\
51	vaf.va = &args;						\
52								\
53	__xfs_printk(kern_level, mp, &vaf);			\
54	va_end(args);						\
55}								\
56
57define_xfs_printk_level(xfs_emerg, KERN_EMERG);
58define_xfs_printk_level(xfs_alert, KERN_ALERT);
59define_xfs_printk_level(xfs_crit, KERN_CRIT);
60define_xfs_printk_level(xfs_err, KERN_ERR);
61define_xfs_printk_level(xfs_warn, KERN_WARNING);
62define_xfs_printk_level(xfs_notice, KERN_NOTICE);
63define_xfs_printk_level(xfs_info, KERN_INFO);
64#ifdef DEBUG
65define_xfs_printk_level(xfs_debug, KERN_DEBUG);
66#endif
67
68void
69xfs_alert_tag(
70	const struct xfs_mount	*mp,
71	int			panic_tag,
72	const char		*fmt, ...)
73{
74	struct va_format	vaf;
75	va_list			args;
76	int			do_panic = 0;
77
78	if (xfs_panic_mask && (xfs_panic_mask & panic_tag)) {
79		xfs_alert(mp, "Transforming an alert into a BUG.");
80		do_panic = 1;
81	}
82
83	va_start(args, fmt);
84
85	vaf.fmt = fmt;
86	vaf.va = &args;
87
88	__xfs_printk(KERN_ALERT, mp, &vaf);
89	va_end(args);
90
91	BUG_ON(do_panic);
92}
93
94void
95asswarn(char *expr, char *file, int line)
96{
97	xfs_warn(NULL, "Assertion failed: %s, file: %s, line: %d",
98		expr, file, line);
99	WARN_ON(1);
100}
101
102void
103assfail(char *expr, char *file, int line)
104{
105	xfs_emerg(NULL, "Assertion failed: %s, file: %s, line: %d",
106		expr, file, line);
107	BUG();
108}
109
110void
111xfs_hex_dump(void *p, int length)
112{
113	print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_ADDRESS, 16, 1, p, length, 1);
114}
115