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
44 #define define_xfs_printk_level(func, kern_level) \
45 void func(const struct xfs_mount *mp, const char *fmt, ...) \
46 { \
47 struct va_format vaf; \
48 va_list args; \
49 \
50 va_start(args, fmt); \
51 \
52 vaf.fmt = fmt; \
53 vaf.va = &args; \
54 \
55 __xfs_printk(kern_level, mp, &vaf); \
56 va_end(args); \
57 } \
58
59 define_xfs_printk_level(xfs_emerg, KERN_EMERG);
60 define_xfs_printk_level(xfs_alert, KERN_ALERT);
61 define_xfs_printk_level(xfs_crit, KERN_CRIT);
62 define_xfs_printk_level(xfs_err, KERN_ERR);
63 define_xfs_printk_level(xfs_warn, KERN_WARNING);
64 define_xfs_printk_level(xfs_notice, KERN_NOTICE);
65 define_xfs_printk_level(xfs_info, KERN_INFO);
66 #ifdef DEBUG
67 define_xfs_printk_level(xfs_debug, KERN_DEBUG);
68 #endif
69
70 void
xfs_alert_tag(const struct xfs_mount * mp,int panic_tag,const char * fmt,...)71 xfs_alert_tag(
72 const struct xfs_mount *mp,
73 int panic_tag,
74 const char *fmt, ...)
75 {
76 struct va_format vaf;
77 va_list args;
78 int do_panic = 0;
79
80 if (xfs_panic_mask && (xfs_panic_mask & panic_tag)) {
81 xfs_alert(mp, "Transforming an alert into a BUG.");
82 do_panic = 1;
83 }
84
85 va_start(args, fmt);
86
87 vaf.fmt = fmt;
88 vaf.va = &args;
89
90 __xfs_printk(KERN_ALERT, mp, &vaf);
91 va_end(args);
92
93 BUG_ON(do_panic);
94 }
95
96 void
assfail(char * expr,char * file,int line)97 assfail(char *expr, char *file, int line)
98 {
99 xfs_emerg(NULL, "Assertion failed: %s, file: %s, line: %d",
100 expr, file, line);
101 BUG();
102 }
103
104 void
xfs_hex_dump(void * p,int length)105 xfs_hex_dump(void *p, int length)
106 {
107 print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_ADDRESS, 16, 1, p, length, 1);
108 }
109