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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - fs/xfs/xfs_error.c
2 * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
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.
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.
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
20 #include "xfs_types.h"
22 #include "xfs_trans.h"
25 #include "xfs_mount.h"
26 #include "xfs_bmap_btree.h"
27 #include "xfs_dinode.h"
28 #include "xfs_inode.h"
29 #include "xfs_utils.h"
30 #include "xfs_error.h"
34 int xfs_etrap
[XFS_ERROR_NTRAP
] = {
45 for (i
= 0; i
< XFS_ERROR_NTRAP
; i
++) {
46 if (xfs_etrap
[i
] == 0)
48 if (e
!= xfs_etrap
[i
])
50 xfs_notice(NULL
, "%s: error %d", __func__
, e
);
57 int xfs_etest
[XFS_NUM_INJECT_ERROR
];
58 int64_t xfs_etest_fsid
[XFS_NUM_INJECT_ERROR
];
59 char * xfs_etest_fsname
[XFS_NUM_INJECT_ERROR
];
60 int xfs_error_test_active
;
63 xfs_error_test(int error_tag
, int *fsidp
, char *expression
,
64 int line
, char *file
, unsigned long randfactor
)
69 if (random32() % randfactor
)
72 memcpy(&fsid
, fsidp
, sizeof(xfs_fsid_t
));
74 for (i
= 0; i
< XFS_NUM_INJECT_ERROR
; i
++) {
75 if (xfs_etest
[i
] == error_tag
&& xfs_etest_fsid
[i
] == fsid
) {
77 "Injecting error (%s) at file %s, line %d, on filesystem \"%s\"",
78 expression
, file
, line
, xfs_etest_fsname
[i
]);
87 xfs_errortag_add(int error_tag
, xfs_mount_t
*mp
)
93 memcpy(&fsid
, mp
->m_fixedfsid
, sizeof(xfs_fsid_t
));
95 for (i
= 0; i
< XFS_NUM_INJECT_ERROR
; i
++) {
96 if (xfs_etest_fsid
[i
] == fsid
&& xfs_etest
[i
] == error_tag
) {
97 xfs_warn(mp
, "error tag #%d on", error_tag
);
102 for (i
= 0; i
< XFS_NUM_INJECT_ERROR
; i
++) {
103 if (xfs_etest
[i
] == 0) {
104 xfs_warn(mp
, "Turned on XFS error tag #%d",
106 xfs_etest
[i
] = error_tag
;
107 xfs_etest_fsid
[i
] = fsid
;
108 len
= strlen(mp
->m_fsname
);
109 xfs_etest_fsname
[i
] = kmem_alloc(len
+ 1, KM_SLEEP
);
110 strcpy(xfs_etest_fsname
[i
], mp
->m_fsname
);
111 xfs_error_test_active
++;
116 xfs_warn(mp
, "error tag overflow, too many turned on");
122 xfs_errortag_clearall(xfs_mount_t
*mp
, int loud
)
128 memcpy(&fsid
, mp
->m_fixedfsid
, sizeof(xfs_fsid_t
));
131 for (i
= 0; i
< XFS_NUM_INJECT_ERROR
; i
++) {
132 if ((fsid
== 0LL || xfs_etest_fsid
[i
] == fsid
) &&
135 xfs_warn(mp
, "Clearing XFS error tag #%d",
138 xfs_etest_fsid
[i
] = 0LL;
139 kmem_free(xfs_etest_fsname
[i
]);
140 xfs_etest_fsname
[i
] = NULL
;
141 xfs_error_test_active
--;
146 xfs_warn(mp
, "Cleared all XFS error tags for filesystem");
156 struct xfs_mount
*mp
,
157 const char *filename
,
161 if (level
<= xfs_error_level
) {
162 xfs_alert_tag(mp
, XFS_PTAG_ERROR_REPORT
,
163 "Internal error %s at line %d of file %s. Caller 0x%p\n",
164 tag
, linenum
, filename
, ra
);
171 xfs_corruption_error(
174 struct xfs_mount
*mp
,
176 const char *filename
,
180 if (level
<= xfs_error_level
)
182 xfs_error_report(tag
, level
, mp
, filename
, linenum
, ra
);
183 xfs_alert(mp
, "Corruption detected. Unmount and run xfs_repair");