Linux 2.6.39-rc4
[pandora-kernel.git] / fs / xfs / linux-2.6 / xfs_message.c
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
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         printk("%sXFS: %pV\n", level, vaf);
40 }
41
42 void xfs_printk(
43         const char              *level,
44         const struct xfs_mount  *mp,
45         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(level, mp, &vaf);
56         va_end(args);
57 }
58
59 #define define_xfs_printk_level(func, kern_level)               \
60 void func(const struct xfs_mount *mp, const char *fmt, ...)     \
61 {                                                               \
62         struct va_format        vaf;                            \
63         va_list                 args;                           \
64                                                                 \
65         va_start(args, fmt);                                    \
66                                                                 \
67         vaf.fmt = fmt;                                          \
68         vaf.va = &args;                                         \
69                                                                 \
70         __xfs_printk(kern_level, mp, &vaf);                     \
71         va_end(args);                                           \
72 }                                                               \
73
74 define_xfs_printk_level(xfs_emerg, KERN_EMERG);
75 define_xfs_printk_level(xfs_alert, KERN_ALERT);
76 define_xfs_printk_level(xfs_crit, KERN_CRIT);
77 define_xfs_printk_level(xfs_err, KERN_ERR);
78 define_xfs_printk_level(xfs_warn, KERN_WARNING);
79 define_xfs_printk_level(xfs_notice, KERN_NOTICE);
80 define_xfs_printk_level(xfs_info, KERN_INFO);
81 #ifdef DEBUG
82 define_xfs_printk_level(xfs_debug, KERN_DEBUG);
83 #endif
84
85 void
86 xfs_alert_tag(
87         const struct xfs_mount  *mp,
88         int                     panic_tag,
89         const char              *fmt, ...)
90 {
91         struct va_format        vaf;
92         va_list                 args;
93         int                     do_panic = 0;
94
95         if (xfs_panic_mask && (xfs_panic_mask & panic_tag)) {
96                 xfs_printk(KERN_ALERT, mp,
97                         "XFS: Transforming an alert into a BUG.");
98                 do_panic = 1;
99         }
100
101         va_start(args, fmt);
102
103         vaf.fmt = fmt;
104         vaf.va = &args;
105
106         __xfs_printk(KERN_ALERT, mp, &vaf);
107         va_end(args);
108
109         BUG_ON(do_panic);
110 }
111
112 void
113 assfail(char *expr, char *file, int line)
114 {
115         xfs_emerg(NULL, "Assertion failed: %s, file: %s, line: %d",
116                 expr, file, line);
117         BUG();
118 }
119
120 void
121 xfs_hex_dump(void *p, int length)
122 {
123         print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_ADDRESS, 16, 1, p, length, 1);
124 }