Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18#include <xfs.h>
19#include "debug.h"
20
21/* xfs_mount.h drags a lot of crap in, sorry.. */
22#include "xfs_sb.h"
23#include "xfs_inum.h"
24#include "xfs_ag.h"
25#include "xfs_dmapi.h"
26#include "xfs_mount.h"
27#include "xfs_error.h"
28
29static char message[1024]; /* keep it off the stack */
30static DEFINE_SPINLOCK(xfs_err_lock);
31
32/* Translate from CE_FOO to KERN_FOO, err_level(CE_FOO) == KERN_FOO */
33#define XFS_MAX_ERR_LEVEL 7
34#define XFS_ERR_MASK ((1 << 3) - 1)
35static const char * const err_level[XFS_MAX_ERR_LEVEL+1] =
36 {KERN_EMERG, KERN_ALERT, KERN_CRIT,
37 KERN_ERR, KERN_WARNING, KERN_NOTICE,
38 KERN_INFO, KERN_DEBUG};
39
40void
41cmn_err(register int level, char *fmt, ...)
42{
43 char *fp = fmt;
44 int len;
45 ulong flags;
46 va_list ap;
47
48 level &= XFS_ERR_MASK;
49 if (level > XFS_MAX_ERR_LEVEL)
50 level = XFS_MAX_ERR_LEVEL;
51 spin_lock_irqsave(&xfs_err_lock,flags);
52 va_start(ap, fmt);
53 if (*fmt == '!') fp++;
54 len = vsnprintf(message, sizeof(message), fp, ap);
55 if (len >= sizeof(message))
56 len = sizeof(message) - 1;
57 if (message[len-1] == '\n')
58 message[len-1] = 0;
59 printk("%s%s\n", err_level[level], message);
60 va_end(ap);
61 spin_unlock_irqrestore(&xfs_err_lock,flags);
62 BUG_ON(level == CE_PANIC);
63}
64
65void
66xfs_fs_vcmn_err(
67 int level,
68 struct xfs_mount *mp,
69 char *fmt,
70 va_list ap)
71{
72 unsigned long flags;
73 int len = 0;
74
75 level &= XFS_ERR_MASK;
76 if (level > XFS_MAX_ERR_LEVEL)
77 level = XFS_MAX_ERR_LEVEL;
78
79 spin_lock_irqsave(&xfs_err_lock,flags);
80
81 if (mp) {
82 len = sprintf(message, "Filesystem \"%s\": ", mp->m_fsname);
83
84 /*
85 * Skip the printk if we can't print anything useful
86 * due to an over-long device name.
87 */
88 if (len >= sizeof(message))
89 goto out;
90 }
91
92 len = vsnprintf(message + len, sizeof(message) - len, fmt, ap);
93 if (len >= sizeof(message))
94 len = sizeof(message) - 1;
95 if (message[len-1] == '\n')
96 message[len-1] = 0;
97
98 printk("%s%s\n", err_level[level], message);
99 out:
100 spin_unlock_irqrestore(&xfs_err_lock,flags);
101
102 BUG_ON(level == CE_PANIC);
103}
104
105void
106assfail(char *expr, char *file, int line)
107{
108 printk("Assertion failed: %s, file: %s, line: %d\n", expr, file, line);
109 BUG();
110}
111
112void
113xfs_hex_dump(void *p, int length)
114{
115 print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_ADDRESS, 16, 1, p, length, 1);
116}