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 */
17static 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
30void
31xfs_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(level: kern_level, mp, vaf: &vaf);
45
46 va_end(args);
47
48 if (!kstrtoint(s: kern_level, base: 0, res: &level) &&
49 level <= LOGLEVEL_ERR &&
50 xfs_error_level >= XFS_ERRLEVEL_HIGH)
51 xfs_stack_trace();
52}
53
54void
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: &vaf);
75 va_end(args);
76
77 BUG_ON(do_panic);
78}
79
80void
81asswarn(
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
92void
93assfail(
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
107void
108xfs_hex_dump(const void *p, int length)
109{
110 print_hex_dump(KERN_ALERT, prefix_str: "", prefix_type: DUMP_PREFIX_OFFSET, rowsize: 16, groupsize: 1, buf: p, len: length, ascii: 1);
111}
112
113void
114xfs_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(rs: &bp->b_target->bt_ioerror_rl, func: rlmsg))
126 return;
127
128 va_start(args, fmt);
129 vaf.fmt = fmt;
130 vaf.va = &args;
131 __xfs_printk(KERN_ALERT, mp, vaf: &vaf);
132 va_end(args);
133}
134

source code of linux/fs/xfs/xfs_message.c