Merge tag 'mfd-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
[linux-block.git] / fs / xfs / xfs_message.c
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 }