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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2001-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
7b718769 NS |
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 | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
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. | |
1da177e4 | 13 | * |
7b718769 NS |
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 | |
1da177e4 | 17 | */ |
1da177e4 | 18 | #include "xfs.h" |
1da177e4 LT |
19 | #include <linux/sysctl.h> |
20 | #include <linux/proc_fs.h> | |
21 | ||
1da177e4 LT |
22 | static struct ctl_table_header *xfs_table_header; |
23 | ||
1da177e4 LT |
24 | #ifdef CONFIG_PROC_FS |
25 | STATIC int | |
26 | xfs_stats_clear_proc_handler( | |
27 | ctl_table *ctl, | |
28 | int write, | |
29 | struct file *filp, | |
30 | void __user *buffer, | |
31 | size_t *lenp, | |
32 | loff_t *ppos) | |
33 | { | |
34 | int c, ret, *valp = ctl->data; | |
35 | __uint32_t vn_active; | |
36 | ||
37 | ret = proc_dointvec_minmax(ctl, write, filp, buffer, lenp, ppos); | |
38 | ||
39 | if (!ret && write && *valp) { | |
40 | printk("XFS Clearing xfsstats\n"); | |
6f0419e0 | 41 | for_each_possible_cpu(c) { |
1da177e4 LT |
42 | preempt_disable(); |
43 | /* save vn_active, it's a universal truth! */ | |
44 | vn_active = per_cpu(xfsstats, c).vn_active; | |
45 | memset(&per_cpu(xfsstats, c), 0, | |
46 | sizeof(struct xfsstats)); | |
47 | per_cpu(xfsstats, c).vn_active = vn_active; | |
48 | preempt_enable(); | |
49 | } | |
50 | xfs_stats_clear = 0; | |
51 | } | |
52 | ||
53 | return ret; | |
54 | } | |
55 | #endif /* CONFIG_PROC_FS */ | |
56 | ||
7989cb8e | 57 | static ctl_table xfs_table[] = { |
3a68cbfe EB |
58 | { |
59 | .ctl_name = XFS_RESTRICT_CHOWN, | |
60 | .procname = "restrict_chown", | |
61 | .data = &xfs_params.restrict_chown.val, | |
62 | .maxlen = sizeof(int), | |
63 | .mode = 0644, | |
64 | .proc_handler = &proc_dointvec_minmax, | |
65 | .strategy = &sysctl_intvec, | |
66 | .extra1 = &xfs_params.restrict_chown.min, | |
67 | .extra2 = &xfs_params.restrict_chown.max | |
68 | }, | |
69 | { | |
70 | .ctl_name = XFS_SGID_INHERIT, | |
71 | .procname = "irix_sgid_inherit", | |
72 | .data = &xfs_params.sgid_inherit.val, | |
73 | .maxlen = sizeof(int), | |
74 | .mode = 0644, | |
75 | .proc_handler = &proc_dointvec_minmax, | |
76 | .strategy = &sysctl_intvec, | |
77 | .extra1 = &xfs_params.sgid_inherit.min, | |
78 | .extra2 = &xfs_params.sgid_inherit.max | |
79 | }, | |
80 | { | |
81 | .ctl_name = XFS_SYMLINK_MODE, | |
82 | .procname = "irix_symlink_mode", | |
83 | .data = &xfs_params.symlink_mode.val, | |
84 | .maxlen = sizeof(int), | |
85 | .mode = 0644, | |
86 | .proc_handler = &proc_dointvec_minmax, | |
87 | .strategy = &sysctl_intvec, | |
88 | .extra1 = &xfs_params.symlink_mode.min, | |
89 | .extra2 = &xfs_params.symlink_mode.max | |
90 | }, | |
91 | { | |
92 | .ctl_name = XFS_PANIC_MASK, | |
93 | .procname = "panic_mask", | |
94 | .data = &xfs_params.panic_mask.val, | |
95 | .maxlen = sizeof(int), | |
96 | .mode = 0644, | |
97 | .proc_handler = &proc_dointvec_minmax, | |
98 | .strategy = &sysctl_intvec, | |
99 | .extra1 = &xfs_params.panic_mask.min, | |
100 | .extra2 = &xfs_params.panic_mask.max | |
101 | }, | |
d3446eac | 102 | |
3a68cbfe EB |
103 | { |
104 | .ctl_name = XFS_ERRLEVEL, | |
105 | .procname = "error_level", | |
106 | .data = &xfs_params.error_level.val, | |
107 | .maxlen = sizeof(int), | |
108 | .mode = 0644, | |
109 | .proc_handler = &proc_dointvec_minmax, | |
110 | .strategy = &sysctl_intvec, | |
111 | .extra1 = &xfs_params.error_level.min, | |
112 | .extra2 = &xfs_params.error_level.max | |
113 | }, | |
114 | { | |
115 | .ctl_name = XFS_SYNCD_TIMER, | |
116 | .procname = "xfssyncd_centisecs", | |
117 | .data = &xfs_params.syncd_timer.val, | |
118 | .maxlen = sizeof(int), | |
119 | .mode = 0644, | |
120 | .proc_handler = &proc_dointvec_minmax, | |
121 | .strategy = &sysctl_intvec, | |
122 | .extra1 = &xfs_params.syncd_timer.min, | |
123 | .extra2 = &xfs_params.syncd_timer.max | |
124 | }, | |
125 | { | |
126 | .ctl_name = XFS_INHERIT_SYNC, | |
127 | .procname = "inherit_sync", | |
128 | .data = &xfs_params.inherit_sync.val, | |
129 | .maxlen = sizeof(int), | |
130 | .mode = 0644, | |
131 | .proc_handler = &proc_dointvec_minmax, | |
132 | .strategy = &sysctl_intvec, | |
133 | .extra1 = &xfs_params.inherit_sync.min, | |
134 | .extra2 = &xfs_params.inherit_sync.max | |
135 | }, | |
136 | { | |
137 | .ctl_name = XFS_INHERIT_NODUMP, | |
138 | .procname = "inherit_nodump", | |
139 | .data = &xfs_params.inherit_nodump.val, | |
140 | .maxlen = sizeof(int), | |
141 | .mode = 0644, | |
142 | .proc_handler = &proc_dointvec_minmax, | |
143 | .strategy = &sysctl_intvec, | |
144 | .extra1 = &xfs_params.inherit_nodump.min, | |
145 | .extra2 = &xfs_params.inherit_nodump.max | |
146 | }, | |
147 | { | |
148 | .ctl_name = XFS_INHERIT_NOATIME, | |
149 | .procname = "inherit_noatime", | |
150 | .data = &xfs_params.inherit_noatim.val, | |
151 | .maxlen = sizeof(int), | |
152 | .mode = 0644, | |
153 | .proc_handler = &proc_dointvec_minmax, | |
154 | .strategy = &sysctl_intvec, | |
155 | .extra1 = &xfs_params.inherit_noatim.min, | |
156 | .extra2 = &xfs_params.inherit_noatim.max | |
157 | }, | |
158 | { | |
159 | .ctl_name = XFS_BUF_TIMER, | |
160 | .procname = "xfsbufd_centisecs", | |
161 | .data = &xfs_params.xfs_buf_timer.val, | |
162 | .maxlen = sizeof(int), | |
163 | .mode = 0644, | |
164 | .proc_handler = &proc_dointvec_minmax, | |
165 | .strategy = &sysctl_intvec, | |
166 | .extra1 = &xfs_params.xfs_buf_timer.min, | |
167 | .extra2 = &xfs_params.xfs_buf_timer.max | |
168 | }, | |
169 | { | |
170 | .ctl_name = XFS_BUF_AGE, | |
171 | .procname = "age_buffer_centisecs", | |
172 | .data = &xfs_params.xfs_buf_age.val, | |
173 | .maxlen = sizeof(int), | |
174 | .mode = 0644, | |
175 | .proc_handler = &proc_dointvec_minmax, | |
176 | .strategy = &sysctl_intvec, | |
177 | .extra1 = &xfs_params.xfs_buf_age.min, | |
178 | .extra2 = &xfs_params.xfs_buf_age.max | |
179 | }, | |
180 | { | |
181 | .ctl_name = XFS_INHERIT_NOSYM, | |
182 | .procname = "inherit_nosymlinks", | |
183 | .data = &xfs_params.inherit_nosym.val, | |
184 | .maxlen = sizeof(int), | |
185 | .mode = 0644, | |
186 | .proc_handler = &proc_dointvec_minmax, | |
187 | .strategy = &sysctl_intvec, | |
188 | .extra1 = &xfs_params.inherit_nosym.min, | |
189 | .extra2 = &xfs_params.inherit_nosym.max | |
190 | }, | |
191 | { | |
192 | .ctl_name = XFS_ROTORSTEP, | |
193 | .procname = "rotorstep", | |
194 | .data = &xfs_params.rotorstep.val, | |
195 | .maxlen = sizeof(int), | |
196 | .mode = 0644, | |
197 | .proc_handler = &proc_dointvec_minmax, | |
198 | .strategy = &sysctl_intvec, | |
199 | .extra1 = &xfs_params.rotorstep.min, | |
200 | .extra2 = &xfs_params.rotorstep.max | |
201 | }, | |
202 | { | |
203 | .ctl_name = XFS_INHERIT_NODFRG, | |
204 | .procname = "inherit_nodefrag", | |
205 | .data = &xfs_params.inherit_nodfrg.val, | |
206 | .maxlen = sizeof(int), | |
207 | .mode = 0644, | |
208 | .proc_handler = &proc_dointvec_minmax, | |
209 | .strategy = &sysctl_intvec, | |
210 | .extra1 = &xfs_params.inherit_nodfrg.min, | |
211 | .extra2 = &xfs_params.inherit_nodfrg.max | |
212 | }, | |
2a82b8be DC |
213 | { |
214 | .ctl_name = XFS_FILESTREAM_TIMER, | |
215 | .procname = "filestream_centisecs", | |
216 | .data = &xfs_params.fstrm_timer.val, | |
217 | .maxlen = sizeof(int), | |
218 | .mode = 0644, | |
219 | .proc_handler = &proc_dointvec_minmax, | |
220 | .strategy = &sysctl_intvec, | |
221 | .extra1 = &xfs_params.fstrm_timer.min, | |
222 | .extra2 = &xfs_params.fstrm_timer.max, | |
223 | }, | |
1da177e4 LT |
224 | /* please keep this the last entry */ |
225 | #ifdef CONFIG_PROC_FS | |
3a68cbfe EB |
226 | { |
227 | .ctl_name = XFS_STATS_CLEAR, | |
228 | .procname = "stats_clear", | |
229 | .data = &xfs_params.stats_clear.val, | |
230 | .maxlen = sizeof(int), | |
231 | .mode = 0644, | |
232 | .proc_handler = &xfs_stats_clear_proc_handler, | |
233 | .strategy = &sysctl_intvec, | |
234 | .extra1 = &xfs_params.stats_clear.min, | |
235 | .extra2 = &xfs_params.stats_clear.max | |
236 | }, | |
1da177e4 LT |
237 | #endif /* CONFIG_PROC_FS */ |
238 | ||
3a68cbfe | 239 | {} |
1da177e4 LT |
240 | }; |
241 | ||
7989cb8e | 242 | static ctl_table xfs_dir_table[] = { |
3a68cbfe EB |
243 | { |
244 | .ctl_name = FS_XFS, | |
245 | .procname = "xfs", | |
246 | .mode = 0555, | |
247 | .child = xfs_table | |
248 | }, | |
249 | {} | |
1da177e4 LT |
250 | }; |
251 | ||
7989cb8e | 252 | static ctl_table xfs_root_table[] = { |
3a68cbfe EB |
253 | { |
254 | .ctl_name = CTL_FS, | |
255 | .procname = "fs", | |
256 | .mode = 0555, | |
257 | .child = xfs_dir_table | |
258 | }, | |
259 | {} | |
1da177e4 LT |
260 | }; |
261 | ||
262 | void | |
263 | xfs_sysctl_register(void) | |
264 | { | |
0b4d4147 | 265 | xfs_table_header = register_sysctl_table(xfs_root_table); |
1da177e4 LT |
266 | } |
267 | ||
268 | void | |
269 | xfs_sysctl_unregister(void) | |
270 | { | |
271 | if (xfs_table_header) | |
272 | unregister_sysctl_table(xfs_table_header); | |
273 | } |