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5
6#include "xfs.h"
7#include <linux/sysctl.h>
8#include <linux/proc_fs.h>
9#include "xfs_error.h"
10#include "xfs_stats.h"
11
12static struct ctl_table_header *xfs_table_header;
13
14#ifdef CONFIG_PROC_FS
15STATIC int
16xfs_stats_clear_proc_handler(
17 struct ctl_table *ctl,
18 int write,
19 void __user *buffer,
20 size_t *lenp,
21 loff_t *ppos)
22{
23 int ret, *valp = ctl->data;
24
25 ret = proc_dointvec_minmax(ctl, write, buffer, lenp, ppos);
26
27 if (!ret && write && *valp) {
28 xfs_stats_clearall(xfsstats.xs_stats);
29 xfs_stats_clear = 0;
30 }
31
32 return ret;
33}
34
35STATIC int
36xfs_panic_mask_proc_handler(
37 struct ctl_table *ctl,
38 int write,
39 void __user *buffer,
40 size_t *lenp,
41 loff_t *ppos)
42{
43 int ret, *valp = ctl->data;
44
45 ret = proc_dointvec_minmax(ctl, write, buffer, lenp, ppos);
46 if (!ret && write) {
47 xfs_panic_mask = *valp;
48#ifdef DEBUG
49 xfs_panic_mask |= (XFS_PTAG_SHUTDOWN_CORRUPT | XFS_PTAG_LOGRES);
50#endif
51 }
52 return ret;
53}
54#endif
55
56static struct ctl_table xfs_table[] = {
57 {
58 .procname = "irix_sgid_inherit",
59 .data = &xfs_params.sgid_inherit.val,
60 .maxlen = sizeof(int),
61 .mode = 0644,
62 .proc_handler = proc_dointvec_minmax,
63 .extra1 = &xfs_params.sgid_inherit.min,
64 .extra2 = &xfs_params.sgid_inherit.max
65 },
66 {
67 .procname = "irix_symlink_mode",
68 .data = &xfs_params.symlink_mode.val,
69 .maxlen = sizeof(int),
70 .mode = 0644,
71 .proc_handler = proc_dointvec_minmax,
72 .extra1 = &xfs_params.symlink_mode.min,
73 .extra2 = &xfs_params.symlink_mode.max
74 },
75 {
76 .procname = "panic_mask",
77 .data = &xfs_params.panic_mask.val,
78 .maxlen = sizeof(int),
79 .mode = 0644,
80 .proc_handler = xfs_panic_mask_proc_handler,
81 .extra1 = &xfs_params.panic_mask.min,
82 .extra2 = &xfs_params.panic_mask.max
83 },
84
85 {
86 .procname = "error_level",
87 .data = &xfs_params.error_level.val,
88 .maxlen = sizeof(int),
89 .mode = 0644,
90 .proc_handler = proc_dointvec_minmax,
91 .extra1 = &xfs_params.error_level.min,
92 .extra2 = &xfs_params.error_level.max
93 },
94 {
95 .procname = "xfssyncd_centisecs",
96 .data = &xfs_params.syncd_timer.val,
97 .maxlen = sizeof(int),
98 .mode = 0644,
99 .proc_handler = proc_dointvec_minmax,
100 .extra1 = &xfs_params.syncd_timer.min,
101 .extra2 = &xfs_params.syncd_timer.max
102 },
103 {
104 .procname = "inherit_sync",
105 .data = &xfs_params.inherit_sync.val,
106 .maxlen = sizeof(int),
107 .mode = 0644,
108 .proc_handler = proc_dointvec_minmax,
109 .extra1 = &xfs_params.inherit_sync.min,
110 .extra2 = &xfs_params.inherit_sync.max
111 },
112 {
113 .procname = "inherit_nodump",
114 .data = &xfs_params.inherit_nodump.val,
115 .maxlen = sizeof(int),
116 .mode = 0644,
117 .proc_handler = proc_dointvec_minmax,
118 .extra1 = &xfs_params.inherit_nodump.min,
119 .extra2 = &xfs_params.inherit_nodump.max
120 },
121 {
122 .procname = "inherit_noatime",
123 .data = &xfs_params.inherit_noatim.val,
124 .maxlen = sizeof(int),
125 .mode = 0644,
126 .proc_handler = proc_dointvec_minmax,
127 .extra1 = &xfs_params.inherit_noatim.min,
128 .extra2 = &xfs_params.inherit_noatim.max
129 },
130 {
131 .procname = "inherit_nosymlinks",
132 .data = &xfs_params.inherit_nosym.val,
133 .maxlen = sizeof(int),
134 .mode = 0644,
135 .proc_handler = proc_dointvec_minmax,
136 .extra1 = &xfs_params.inherit_nosym.min,
137 .extra2 = &xfs_params.inherit_nosym.max
138 },
139 {
140 .procname = "rotorstep",
141 .data = &xfs_params.rotorstep.val,
142 .maxlen = sizeof(int),
143 .mode = 0644,
144 .proc_handler = proc_dointvec_minmax,
145 .extra1 = &xfs_params.rotorstep.min,
146 .extra2 = &xfs_params.rotorstep.max
147 },
148 {
149 .procname = "inherit_nodefrag",
150 .data = &xfs_params.inherit_nodfrg.val,
151 .maxlen = sizeof(int),
152 .mode = 0644,
153 .proc_handler = proc_dointvec_minmax,
154 .extra1 = &xfs_params.inherit_nodfrg.min,
155 .extra2 = &xfs_params.inherit_nodfrg.max
156 },
157 {
158 .procname = "filestream_centisecs",
159 .data = &xfs_params.fstrm_timer.val,
160 .maxlen = sizeof(int),
161 .mode = 0644,
162 .proc_handler = proc_dointvec_minmax,
163 .extra1 = &xfs_params.fstrm_timer.min,
164 .extra2 = &xfs_params.fstrm_timer.max,
165 },
166 {
167 .procname = "speculative_prealloc_lifetime",
168 .data = &xfs_params.eofb_timer.val,
169 .maxlen = sizeof(int),
170 .mode = 0644,
171 .proc_handler = proc_dointvec_minmax,
172 .extra1 = &xfs_params.eofb_timer.min,
173 .extra2 = &xfs_params.eofb_timer.max,
174 },
175 {
176 .procname = "speculative_cow_prealloc_lifetime",
177 .data = &xfs_params.cowb_timer.val,
178 .maxlen = sizeof(int),
179 .mode = 0644,
180 .proc_handler = proc_dointvec_minmax,
181 .extra1 = &xfs_params.cowb_timer.min,
182 .extra2 = &xfs_params.cowb_timer.max,
183 },
184
185#ifdef CONFIG_PROC_FS
186 {
187 .procname = "stats_clear",
188 .data = &xfs_params.stats_clear.val,
189 .maxlen = sizeof(int),
190 .mode = 0644,
191 .proc_handler = xfs_stats_clear_proc_handler,
192 .extra1 = &xfs_params.stats_clear.min,
193 .extra2 = &xfs_params.stats_clear.max
194 },
195#endif
196
197 {}
198};
199
200static struct ctl_table xfs_dir_table[] = {
201 {
202 .procname = "xfs",
203 .mode = 0555,
204 .child = xfs_table
205 },
206 {}
207};
208
209static struct ctl_table xfs_root_table[] = {
210 {
211 .procname = "fs",
212 .mode = 0555,
213 .child = xfs_dir_table
214 },
215 {}
216};
217
218int
219xfs_sysctl_register(void)
220{
221 xfs_table_header = register_sysctl_table(xfs_root_table);
222 if (!xfs_table_header)
223 return -ENOMEM;
224 return 0;
225}
226
227void
228xfs_sysctl_unregister(void)
229{
230 unregister_sysctl_table(xfs_table_header);
231}
232
