1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012 by Delphix. All rights reserved.
*/
#include <sys/zfs_context.h>
/*
* Enable various debugging features.
*/
int zfs_flags = 0;
/*
* zfs_recover can be set to nonzero to attempt to recover from
* otherwise-fatal errors, typically caused by on-disk corruption. When
* set, calls to zfs_panic_recover() will turn into warning messages.
*/
int zfs_recover = 0;
void
zfs_panic_recover(const char *fmt, ...)
{
va_list adx;
va_start(adx, fmt);
vcmn_err(zfs_recover ? CE_WARN : CE_PANIC, fmt, adx);
va_end(adx);
}
/*
* Debug logging is enabled by default for production kernel builds.
* The overhead for this is negligible and the logs can be valuable when
* debugging. For non-production user space builds all debugging except
* logging is enabled since performance is no longer a concern.
*/
void
zfs_dbgmsg_init(void)
{
if (zfs_flags == 0) {
#if defined(_KERNEL)
zfs_flags = ZFS_DEBUG_DPRINTF;
spl_debug_set_mask(spl_debug_get_mask() | SD_DPRINTF);
spl_debug_set_subsys(spl_debug_get_subsys() | SS_USER1);
#else
zfs_flags = ~ZFS_DEBUG_DPRINTF;
#endif /* _KERNEL */
}
}
void
zfs_dbgmsg_fini(void)
{
return;
}
#if defined(_KERNEL)
module_param(zfs_flags, int, 0644);
MODULE_PARM_DESC(zfs_flags, "Set additional debugging flags");
module_param(zfs_recover, int, 0644);
MODULE_PARM_DESC(zfs_recover, "Set to attempt to recover from fatal errors");
#endif /* _KERNEL */
|
