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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"); | |
41 | for (c = 0; c < NR_CPUS; c++) { | |
42 | if (!cpu_possible(c)) continue; | |
43 | preempt_disable(); | |
44 | /* save vn_active, it's a universal truth! */ | |
45 | vn_active = per_cpu(xfsstats, c).vn_active; | |
46 | memset(&per_cpu(xfsstats, c), 0, | |
47 | sizeof(struct xfsstats)); | |
48 | per_cpu(xfsstats, c).vn_active = vn_active; | |
49 | preempt_enable(); | |
50 | } | |
51 | xfs_stats_clear = 0; | |
52 | } | |
53 | ||
54 | return ret; | |
55 | } | |
56 | #endif /* CONFIG_PROC_FS */ | |
57 | ||
58 | STATIC ctl_table xfs_table[] = { | |
59 | {XFS_RESTRICT_CHOWN, "restrict_chown", &xfs_params.restrict_chown.val, | |
60 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
a844f451 | 61 | &sysctl_intvec, NULL, |
1da177e4 LT |
62 | &xfs_params.restrict_chown.min, &xfs_params.restrict_chown.max}, |
63 | ||
64 | {XFS_SGID_INHERIT, "irix_sgid_inherit", &xfs_params.sgid_inherit.val, | |
65 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
66 | &sysctl_intvec, NULL, | |
67 | &xfs_params.sgid_inherit.min, &xfs_params.sgid_inherit.max}, | |
68 | ||
69 | {XFS_SYMLINK_MODE, "irix_symlink_mode", &xfs_params.symlink_mode.val, | |
70 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
a844f451 | 71 | &sysctl_intvec, NULL, |
1da177e4 LT |
72 | &xfs_params.symlink_mode.min, &xfs_params.symlink_mode.max}, |
73 | ||
74 | {XFS_PANIC_MASK, "panic_mask", &xfs_params.panic_mask.val, | |
75 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
a844f451 | 76 | &sysctl_intvec, NULL, |
1da177e4 LT |
77 | &xfs_params.panic_mask.min, &xfs_params.panic_mask.max}, |
78 | ||
79 | {XFS_ERRLEVEL, "error_level", &xfs_params.error_level.val, | |
80 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
a844f451 | 81 | &sysctl_intvec, NULL, |
1da177e4 LT |
82 | &xfs_params.error_level.min, &xfs_params.error_level.max}, |
83 | ||
84 | {XFS_SYNCD_TIMER, "xfssyncd_centisecs", &xfs_params.syncd_timer.val, | |
85 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
a844f451 | 86 | &sysctl_intvec, NULL, |
1da177e4 LT |
87 | &xfs_params.syncd_timer.min, &xfs_params.syncd_timer.max}, |
88 | ||
89 | {XFS_INHERIT_SYNC, "inherit_sync", &xfs_params.inherit_sync.val, | |
90 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
91 | &sysctl_intvec, NULL, | |
92 | &xfs_params.inherit_sync.min, &xfs_params.inherit_sync.max}, | |
93 | ||
94 | {XFS_INHERIT_NODUMP, "inherit_nodump", &xfs_params.inherit_nodump.val, | |
95 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
96 | &sysctl_intvec, NULL, | |
97 | &xfs_params.inherit_nodump.min, &xfs_params.inherit_nodump.max}, | |
98 | ||
99 | {XFS_INHERIT_NOATIME, "inherit_noatime", &xfs_params.inherit_noatim.val, | |
100 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
101 | &sysctl_intvec, NULL, | |
102 | &xfs_params.inherit_noatim.min, &xfs_params.inherit_noatim.max}, | |
a844f451 | 103 | |
1da177e4 LT |
104 | {XFS_BUF_TIMER, "xfsbufd_centisecs", &xfs_params.xfs_buf_timer.val, |
105 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
106 | &sysctl_intvec, NULL, | |
107 | &xfs_params.xfs_buf_timer.min, &xfs_params.xfs_buf_timer.max}, | |
108 | ||
109 | {XFS_BUF_AGE, "age_buffer_centisecs", &xfs_params.xfs_buf_age.val, | |
110 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
111 | &sysctl_intvec, NULL, | |
112 | &xfs_params.xfs_buf_age.min, &xfs_params.xfs_buf_age.max}, | |
113 | ||
114 | {XFS_INHERIT_NOSYM, "inherit_nosymlinks", &xfs_params.inherit_nosym.val, | |
115 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
116 | &sysctl_intvec, NULL, | |
117 | &xfs_params.inherit_nosym.min, &xfs_params.inherit_nosym.max}, | |
118 | ||
119 | {XFS_ROTORSTEP, "rotorstep", &xfs_params.rotorstep.val, | |
120 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
a844f451 | 121 | &sysctl_intvec, NULL, |
1da177e4 LT |
122 | &xfs_params.rotorstep.min, &xfs_params.rotorstep.max}, |
123 | ||
124 | /* please keep this the last entry */ | |
125 | #ifdef CONFIG_PROC_FS | |
126 | {XFS_STATS_CLEAR, "stats_clear", &xfs_params.stats_clear.val, | |
127 | sizeof(int), 0644, NULL, &xfs_stats_clear_proc_handler, | |
a844f451 | 128 | &sysctl_intvec, NULL, |
1da177e4 LT |
129 | &xfs_params.stats_clear.min, &xfs_params.stats_clear.max}, |
130 | #endif /* CONFIG_PROC_FS */ | |
131 | ||
132 | {0} | |
133 | }; | |
134 | ||
135 | STATIC ctl_table xfs_dir_table[] = { | |
136 | {FS_XFS, "xfs", NULL, 0, 0555, xfs_table}, | |
137 | {0} | |
138 | }; | |
139 | ||
140 | STATIC ctl_table xfs_root_table[] = { | |
141 | {CTL_FS, "fs", NULL, 0, 0555, xfs_dir_table}, | |
142 | {0} | |
143 | }; | |
144 | ||
145 | void | |
146 | xfs_sysctl_register(void) | |
147 | { | |
148 | xfs_table_header = register_sysctl_table(xfs_root_table, 1); | |
149 | } | |
150 | ||
151 | void | |
152 | xfs_sysctl_unregister(void) | |
153 | { | |
154 | if (xfs_table_header) | |
155 | unregister_sysctl_table(xfs_table_header); | |
156 | } |