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1 | /* -*- mode: c; c-basic-offset: 8; -*- |
2 | * vim: noexpandtab sw=8 ts=8 sts=0: |
3 | * |
4 | * Copyright (C) 2004, 2005 Oracle. All rights reserved. |
5 | * |
6 | * This program is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU General Public |
8 | * License as published by the Free Software Foundation; either |
9 | * version 2 of the License, or (at your option) any later version. |
10 | * |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | * General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU General Public |
17 | * License along with this program; if not, write to the |
18 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
19 | * Boston, MA 021110-1307, USA. |
20 | */ |
21 | |
22 | #include <linux/module.h> |
23 | #include <linux/kernel.h> |
24 | #include <linux/proc_fs.h> |
25 | #include <linux/seq_file.h> |
26 | #include <linux/string.h> |
27 | #include <asm/uaccess.h> |
28 | |
29 | #include "masklog.h" |
30 | |
31 | struct mlog_bits mlog_and_bits = MLOG_BITS_RHS(MLOG_INITIAL_AND_MASK); |
32 | EXPORT_SYMBOL_GPL(mlog_and_bits); |
33 | struct mlog_bits mlog_not_bits = MLOG_BITS_RHS(MLOG_INITIAL_NOT_MASK); |
34 | EXPORT_SYMBOL_GPL(mlog_not_bits); |
35 | |
36 | static ssize_t mlog_mask_show(u64 mask, char *buf) |
37 | { |
38 | char *state; |
39 | |
40 | if (__mlog_test_u64(mask, mlog_and_bits)) |
41 | state = "allow"; |
42 | else if (__mlog_test_u64(mask, mlog_not_bits)) |
43 | state = "deny"; |
44 | else |
45 | state = "off"; |
46 | |
47 | return snprintf(buf, PAGE_SIZE, "%s\n", state); |
48 | } |
49 | |
50 | static ssize_t mlog_mask_store(u64 mask, const char *buf, size_t count) |
51 | { |
52 | if (!strnicmp(buf, "allow", 5)) { |
53 | __mlog_set_u64(mask, mlog_and_bits); |
54 | __mlog_clear_u64(mask, mlog_not_bits); |
55 | } else if (!strnicmp(buf, "deny", 4)) { |
56 | __mlog_set_u64(mask, mlog_not_bits); |
57 | __mlog_clear_u64(mask, mlog_and_bits); |
58 | } else if (!strnicmp(buf, "off", 3)) { |
59 | __mlog_clear_u64(mask, mlog_not_bits); |
60 | __mlog_clear_u64(mask, mlog_and_bits); |
61 | } else |
62 | return -EINVAL; |
63 | |
64 | return count; |
65 | } |
66 | |
67 | struct mlog_attribute { |
68 | struct attribute attr; |
69 | u64 mask; |
70 | }; |
71 | |
72 | #define to_mlog_attr(_attr) container_of(_attr, struct mlog_attribute, attr) |
73 | |
74 | #define define_mask(_name) { \ |
75 | .attr = { \ |
76 | .name = #_name, \ |
77 | .mode = S_IRUGO | S_IWUSR, \ |
78 | }, \ |
79 | .mask = ML_##_name, \ |
80 | } |
81 | |
82 | static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = { |
83 | define_mask(ENTRY), |
84 | define_mask(EXIT), |
85 | define_mask(TCP), |
86 | define_mask(MSG), |
87 | define_mask(SOCKET), |
88 | define_mask(HEARTBEAT), |
89 | define_mask(HB_BIO), |
90 | define_mask(DLMFS), |
91 | define_mask(DLM), |
92 | define_mask(DLM_DOMAIN), |
93 | define_mask(DLM_THREAD), |
94 | define_mask(DLM_MASTER), |
95 | define_mask(DLM_RECOVERY), |
96 | define_mask(AIO), |
97 | define_mask(JOURNAL), |
98 | define_mask(DISK_ALLOC), |
99 | define_mask(SUPER), |
100 | define_mask(FILE_IO), |
101 | define_mask(EXTENT_MAP), |
102 | define_mask(DLM_GLUE), |
103 | define_mask(BH_IO), |
104 | define_mask(UPTODATE), |
105 | define_mask(NAMEI), |
106 | define_mask(INODE), |
107 | define_mask(VOTE), |
108 | define_mask(DCACHE), |
109 | define_mask(CONN), |
110 | define_mask(QUORUM), |
111 | define_mask(EXPORT), |
112 | define_mask(XATTR), |
113 | define_mask(QUOTA), |
114 | define_mask(REFCOUNT), |
115 | define_mask(BASTS), |
116 | define_mask(ERROR), |
117 | define_mask(NOTICE), |
118 | define_mask(KTHREAD), |
119 | }; |
120 | |
121 | static struct attribute *mlog_attr_ptrs[MLOG_MAX_BITS] = {NULL, }; |
122 | |
123 | static ssize_t mlog_show(struct kobject *obj, struct attribute *attr, |
124 | char *buf) |
125 | { |
126 | struct mlog_attribute *mlog_attr = to_mlog_attr(attr); |
127 | |
128 | return mlog_mask_show(mlog_attr->mask, buf); |
129 | } |
130 | |
131 | static ssize_t mlog_store(struct kobject *obj, struct attribute *attr, |
132 | const char *buf, size_t count) |
133 | { |
134 | struct mlog_attribute *mlog_attr = to_mlog_attr(attr); |
135 | |
136 | return mlog_mask_store(mlog_attr->mask, buf, count); |
137 | } |
138 | |
139 | static const struct sysfs_ops mlog_attr_ops = { |
140 | .show = mlog_show, |
141 | .store = mlog_store, |
142 | }; |
143 | |
144 | static struct kobj_type mlog_ktype = { |
145 | .default_attrs = mlog_attr_ptrs, |
146 | .sysfs_ops = &mlog_attr_ops, |
147 | }; |
148 | |
149 | static struct kset mlog_kset = { |
150 | .kobj = {.ktype = &mlog_ktype}, |
151 | }; |
152 | |
153 | int mlog_sys_init(struct kset *o2cb_kset) |
154 | { |
155 | int i = 0; |
156 | |
157 | while (mlog_attrs[i].attr.mode) { |
158 | mlog_attr_ptrs[i] = &mlog_attrs[i].attr; |
159 | i++; |
160 | } |
161 | mlog_attr_ptrs[i] = NULL; |
162 | |
163 | kobject_set_name(&mlog_kset.kobj, "logmask"); |
164 | mlog_kset.kobj.kset = o2cb_kset; |
165 | return kset_register(&mlog_kset); |
166 | } |
167 | |
168 | void mlog_sys_shutdown(void) |
169 | { |
170 | kset_unregister(&mlog_kset); |
171 | } |
172 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9