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_types.h"
21 #include "xfs_log.h"
22 #include "xfs_inum.h"
23 #include "xfs_trans.h"
24 #include "xfs_sb.h"
25 #include "xfs_ag.h"
26 #include "xfs_mount.h"
27
28 /*
29 * XFS logging functions
30 */
31 static void
__xfs_printk(const char * level,const struct xfs_mount * mp,struct va_format * vaf)32 __xfs_printk(
33 const char *level,
34 const struct xfs_mount *mp,
35 struct va_format *vaf)
36 {
37 if (mp && mp->m_fsname) {
38 printk("%sXFS (%s): %pV\n", level, mp->m_fsname, vaf);
39 return;
40 }
41 printk("%sXFS: %pV\n", level, vaf);
42 }
43
xfs_printk(const char * level,const struct xfs_mount * mp,const char * fmt,...)44 void xfs_printk(
45 const char *level,
46 const struct xfs_mount *mp,
47 const char *fmt, ...)
48 {
49 struct va_format vaf;
50 va_list args;
51
52 va_start(args, fmt);
53
54 vaf.fmt = fmt;
55 vaf.va = &args;
56
57 __xfs_printk(level, mp, &vaf);
58 va_end(args);
59 }
60
61 #define define_xfs_printk_level(func, kern_level) \
62 void func(const struct xfs_mount *mp, const char *fmt, ...) \
63 { \
64 struct va_format vaf; \
65 va_list args; \
66 \
67 va_start(args, fmt); \
68 \
69 vaf.fmt = fmt; \
70 vaf.va = &args; \
71 \
72 __xfs_printk(kern_level, mp, &vaf); \
73 va_end(args); \
74 } \
75
76 define_xfs_printk_level(xfs_emerg, KERN_EMERG);
77 define_xfs_printk_level(xfs_alert, KERN_ALERT);
78 define_xfs_printk_level(xfs_crit, KERN_CRIT);
79 define_xfs_printk_level(xfs_err, KERN_ERR);
80 define_xfs_printk_level(xfs_warn, KERN_WARNING);
81 define_xfs_printk_level(xfs_notice, KERN_NOTICE);
82 define_xfs_printk_level(xfs_info, KERN_INFO);
83 #ifdef DEBUG
84 define_xfs_printk_level(xfs_debug, KERN_DEBUG);
85 #endif
86
87 void
xfs_alert_tag(const struct xfs_mount * mp,int panic_tag,const char * fmt,...)88 xfs_alert_tag(
89 const struct xfs_mount *mp,
90 int panic_tag,
91 const char *fmt, ...)
92 {
93 struct va_format vaf;
94 va_list args;
95 int do_panic = 0;
96
97 if (xfs_panic_mask && (xfs_panic_mask & panic_tag)) {
98 xfs_printk(KERN_ALERT, mp,
99 "XFS: Transforming an alert into a BUG.");
100 do_panic = 1;
101 }
102
103 va_start(args, fmt);
104
105 vaf.fmt = fmt;
106 vaf.va = &args;
107
108 __xfs_printk(KERN_ALERT, mp, &vaf);
109 va_end(args);
110
111 BUG_ON(do_panic);
112 }
113
114 void
assfail(char * expr,char * file,int line)115 assfail(char *expr, char *file, int line)
116 {
117 xfs_emerg(NULL, "Assertion failed: %s, file: %s, line: %d",
118 expr, file, line);
119 BUG();
120 }
121
122 void
xfs_hex_dump(void * p,int length)123 xfs_hex_dump(void *p, int length)
124 {
125 print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_ADDRESS, 16, 1, p, length, 1);
126 }
127