1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * Copyright (c) 2001-2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. |
5 | */ |
6 | #include "xfs.h" |
7 | #include "xfs_error.h" |
8 | |
9 | static struct ctl_table_header *; |
10 | |
11 | #ifdef CONFIG_PROC_FS |
12 | STATIC int |
13 | xfs_stats_clear_proc_handler( |
14 | struct ctl_table *ctl, |
15 | int write, |
16 | void *buffer, |
17 | size_t *lenp, |
18 | loff_t *ppos) |
19 | { |
20 | int ret, *valp = ctl->data; |
21 | |
22 | ret = proc_dointvec_minmax(ctl, write, buffer, lenp, ppos); |
23 | |
24 | if (!ret && write && *valp) { |
25 | xfs_stats_clearall(stats: xfsstats.xs_stats); |
26 | xfs_stats_clear = 0; |
27 | } |
28 | |
29 | return ret; |
30 | } |
31 | |
32 | STATIC int |
33 | xfs_panic_mask_proc_handler( |
34 | struct ctl_table *ctl, |
35 | int write, |
36 | void *buffer, |
37 | size_t *lenp, |
38 | loff_t *ppos) |
39 | { |
40 | int ret, *valp = ctl->data; |
41 | |
42 | ret = proc_dointvec_minmax(ctl, write, buffer, lenp, ppos); |
43 | if (!ret && write) { |
44 | xfs_panic_mask = *valp; |
45 | #ifdef DEBUG |
46 | xfs_panic_mask |= (XFS_PTAG_SHUTDOWN_CORRUPT | XFS_PTAG_LOGRES); |
47 | #endif |
48 | } |
49 | return ret; |
50 | } |
51 | #endif /* CONFIG_PROC_FS */ |
52 | |
53 | STATIC int |
54 | xfs_deprecated_dointvec_minmax( |
55 | struct ctl_table *ctl, |
56 | int write, |
57 | void *buffer, |
58 | size_t *lenp, |
59 | loff_t *ppos) |
60 | { |
61 | if (write) { |
62 | printk_ratelimited(KERN_WARNING |
63 | "XFS: %s sysctl option is deprecated.\n" , |
64 | ctl->procname); |
65 | } |
66 | return proc_dointvec_minmax(ctl, write, buffer, lenp, ppos); |
67 | } |
68 | |
69 | static struct ctl_table xfs_table[] = { |
70 | { |
71 | .procname = "irix_sgid_inherit" , |
72 | .data = &xfs_params.sgid_inherit.val, |
73 | .maxlen = sizeof(int), |
74 | .mode = 0644, |
75 | .proc_handler = xfs_deprecated_dointvec_minmax, |
76 | .extra1 = &xfs_params.sgid_inherit.min, |
77 | .extra2 = &xfs_params.sgid_inherit.max |
78 | }, |
79 | { |
80 | .procname = "irix_symlink_mode" , |
81 | .data = &xfs_params.symlink_mode.val, |
82 | .maxlen = sizeof(int), |
83 | .mode = 0644, |
84 | .proc_handler = xfs_deprecated_dointvec_minmax, |
85 | .extra1 = &xfs_params.symlink_mode.min, |
86 | .extra2 = &xfs_params.symlink_mode.max |
87 | }, |
88 | { |
89 | .procname = "panic_mask" , |
90 | .data = &xfs_params.panic_mask.val, |
91 | .maxlen = sizeof(int), |
92 | .mode = 0644, |
93 | .proc_handler = xfs_panic_mask_proc_handler, |
94 | .extra1 = &xfs_params.panic_mask.min, |
95 | .extra2 = &xfs_params.panic_mask.max |
96 | }, |
97 | |
98 | { |
99 | .procname = "error_level" , |
100 | .data = &xfs_params.error_level.val, |
101 | .maxlen = sizeof(int), |
102 | .mode = 0644, |
103 | .proc_handler = proc_dointvec_minmax, |
104 | .extra1 = &xfs_params.error_level.min, |
105 | .extra2 = &xfs_params.error_level.max |
106 | }, |
107 | { |
108 | .procname = "xfssyncd_centisecs" , |
109 | .data = &xfs_params.syncd_timer.val, |
110 | .maxlen = sizeof(int), |
111 | .mode = 0644, |
112 | .proc_handler = proc_dointvec_minmax, |
113 | .extra1 = &xfs_params.syncd_timer.min, |
114 | .extra2 = &xfs_params.syncd_timer.max |
115 | }, |
116 | { |
117 | .procname = "inherit_sync" , |
118 | .data = &xfs_params.inherit_sync.val, |
119 | .maxlen = sizeof(int), |
120 | .mode = 0644, |
121 | .proc_handler = proc_dointvec_minmax, |
122 | .extra1 = &xfs_params.inherit_sync.min, |
123 | .extra2 = &xfs_params.inherit_sync.max |
124 | }, |
125 | { |
126 | .procname = "inherit_nodump" , |
127 | .data = &xfs_params.inherit_nodump.val, |
128 | .maxlen = sizeof(int), |
129 | .mode = 0644, |
130 | .proc_handler = proc_dointvec_minmax, |
131 | .extra1 = &xfs_params.inherit_nodump.min, |
132 | .extra2 = &xfs_params.inherit_nodump.max |
133 | }, |
134 | { |
135 | .procname = "inherit_noatime" , |
136 | .data = &xfs_params.inherit_noatim.val, |
137 | .maxlen = sizeof(int), |
138 | .mode = 0644, |
139 | .proc_handler = proc_dointvec_minmax, |
140 | .extra1 = &xfs_params.inherit_noatim.min, |
141 | .extra2 = &xfs_params.inherit_noatim.max |
142 | }, |
143 | { |
144 | .procname = "inherit_nosymlinks" , |
145 | .data = &xfs_params.inherit_nosym.val, |
146 | .maxlen = sizeof(int), |
147 | .mode = 0644, |
148 | .proc_handler = proc_dointvec_minmax, |
149 | .extra1 = &xfs_params.inherit_nosym.min, |
150 | .extra2 = &xfs_params.inherit_nosym.max |
151 | }, |
152 | { |
153 | .procname = "rotorstep" , |
154 | .data = &xfs_params.rotorstep.val, |
155 | .maxlen = sizeof(int), |
156 | .mode = 0644, |
157 | .proc_handler = proc_dointvec_minmax, |
158 | .extra1 = &xfs_params.rotorstep.min, |
159 | .extra2 = &xfs_params.rotorstep.max |
160 | }, |
161 | { |
162 | .procname = "inherit_nodefrag" , |
163 | .data = &xfs_params.inherit_nodfrg.val, |
164 | .maxlen = sizeof(int), |
165 | .mode = 0644, |
166 | .proc_handler = proc_dointvec_minmax, |
167 | .extra1 = &xfs_params.inherit_nodfrg.min, |
168 | .extra2 = &xfs_params.inherit_nodfrg.max |
169 | }, |
170 | { |
171 | .procname = "filestream_centisecs" , |
172 | .data = &xfs_params.fstrm_timer.val, |
173 | .maxlen = sizeof(int), |
174 | .mode = 0644, |
175 | .proc_handler = proc_dointvec_minmax, |
176 | .extra1 = &xfs_params.fstrm_timer.min, |
177 | .extra2 = &xfs_params.fstrm_timer.max, |
178 | }, |
179 | { |
180 | .procname = "speculative_prealloc_lifetime" , |
181 | .data = &xfs_params.blockgc_timer.val, |
182 | .maxlen = sizeof(int), |
183 | .mode = 0644, |
184 | .proc_handler = proc_dointvec_minmax, |
185 | .extra1 = &xfs_params.blockgc_timer.min, |
186 | .extra2 = &xfs_params.blockgc_timer.max, |
187 | }, |
188 | { |
189 | .procname = "speculative_cow_prealloc_lifetime" , |
190 | .data = &xfs_params.blockgc_timer.val, |
191 | .maxlen = sizeof(int), |
192 | .mode = 0644, |
193 | .proc_handler = xfs_deprecated_dointvec_minmax, |
194 | .extra1 = &xfs_params.blockgc_timer.min, |
195 | .extra2 = &xfs_params.blockgc_timer.max, |
196 | }, |
197 | /* please keep this the last entry */ |
198 | #ifdef CONFIG_PROC_FS |
199 | { |
200 | .procname = "stats_clear" , |
201 | .data = &xfs_params.stats_clear.val, |
202 | .maxlen = sizeof(int), |
203 | .mode = 0644, |
204 | .proc_handler = xfs_stats_clear_proc_handler, |
205 | .extra1 = &xfs_params.stats_clear.min, |
206 | .extra2 = &xfs_params.stats_clear.max |
207 | }, |
208 | #endif /* CONFIG_PROC_FS */ |
209 | }; |
210 | |
211 | int |
212 | xfs_sysctl_register(void) |
213 | { |
214 | xfs_table_header = register_sysctl("fs/xfs" , xfs_table); |
215 | if (!xfs_table_header) |
216 | return -ENOMEM; |
217 | return 0; |
218 | } |
219 | |
220 | void |
221 | xfs_sysctl_unregister(void) |
222 | { |
223 | unregister_sysctl_table(table: xfs_table_header); |
224 | } |
225 | |