1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2011 Red Hat, Inc. All Rights Reserved.
4 */
5
6 #include "xfs.h"
7 #include "xfs_fs.h"
8 #include "xfs_error.h"
9 #include "xfs_shared.h"
10 #include "xfs_format.h"
11 #include "xfs_trans_resv.h"
12 #include "xfs_mount.h"
13
14 /*
15 * XFS logging functions
16 */
17 static void
18 __xfs_printk(
19 const char *level,
20 const struct xfs_mount *mp,
21 struct va_format *vaf)
22 {
23 if (mp && mp->m_super) {
24 printk("%sXFS (%s): %pV\n", level, mp->m_super->s_id, vaf);
25 return;
26 }
27 printk("%sXFS: %pV\n", level, vaf);
28 }
29
30 void
31 xfs_printk_level(
32 const char *kern_level,
33 const struct xfs_mount *mp,
34 const char *fmt, ...)
35 {
36 struct va_format vaf;
37 va_list args;
38 int level;
39
40 va_start(args, fmt);
41 vaf.fmt = fmt;
42 vaf.va = &args;
43
44 __xfs_printk(kern_level, mp, &vaf);
45
46 va_end(args);
47
48 if (!kstrtoint(kern_level, 0, &level) &&
49 level <= LOGLEVEL_ERR &&
50 xfs_error_level >= XFS_ERRLEVEL_HIGH)
51 xfs_stack_trace();
52 }
53
54 void
55 _xfs_alert_tag(
56 const struct xfs_mount *mp,
57 uint32_t panic_tag,
58 const char *fmt, ...)
59 {
60 struct va_format vaf;
61 va_list args;
62 int do_panic = 0;
63
64 if (xfs_panic_mask && (xfs_panic_mask & panic_tag)) {
65 xfs_alert(mp, "Transforming an alert into a BUG.");
66 do_panic = 1;
67 }
68
69 va_start(args, fmt);
70
71 vaf.fmt = fmt;
72 vaf.va = &args;
73
74 __xfs_printk(KERN_ALERT, mp, &vaf);
75 va_end(args);
76
77 BUG_ON(do_panic);
78 }
79
80 void
81 asswarn(
82 struct xfs_mount *mp,
83 char *expr,
84 char *file,
85 int line)
86 {
87 xfs_warn(mp, "Assertion failed: %s, file: %s, line: %d",
88 expr, file, line);
89 WARN_ON(1);
90 }
91
92 void
93 assfail(
94 struct xfs_mount *mp,
95 char *expr,
96 char *file,
97 int line)
98 {
99 xfs_emerg(mp, "Assertion failed: %s, file: %s, line: %d",
100 expr, file, line);
101 if (xfs_globals.bug_on_assert)
102 BUG();
103 else
104 WARN_ON(1);
105 }
106
107 void
108 xfs_hex_dump(const void *p, int length)
109 {
110 print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_OFFSET, 16, 1, p, length, 1);
111 }
112
113 void
114 xfs_buf_alert_ratelimited(
115 struct xfs_buf *bp,
116 const char *rlmsg,
117 const char *fmt,
118 ...)
119 {
120 struct xfs_mount *mp = bp->b_mount;
121 struct va_format vaf;
122 va_list args;
123
124 /* use the more aggressive per-target rate limit for buffers */
125 if (!___ratelimit(&bp->b_target->bt_ioerror_rl, rlmsg))
126 return;
127
128 va_start(args, fmt);
129 vaf.fmt = fmt;
130 vaf.va = &args;
131 __xfs_printk(KERN_ALERT, mp, &vaf);
132 va_end(args);
133 }
134
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