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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"); | |
394e3902 | 41 | for_each_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 | ||
57 | STATIC ctl_table xfs_table[] = { | |
58 | {XFS_RESTRICT_CHOWN, "restrict_chown", &xfs_params.restrict_chown.val, | |
59 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
a844f451 | 60 | &sysctl_intvec, NULL, |
1da177e4 LT |
61 | &xfs_params.restrict_chown.min, &xfs_params.restrict_chown.max}, |
62 | ||
63 | {XFS_SGID_INHERIT, "irix_sgid_inherit", &xfs_params.sgid_inherit.val, | |
64 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
65 | &sysctl_intvec, NULL, | |
66 | &xfs_params.sgid_inherit.min, &xfs_params.sgid_inherit.max}, | |
67 | ||
68 | {XFS_SYMLINK_MODE, "irix_symlink_mode", &xfs_params.symlink_mode.val, | |
69 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
a844f451 | 70 | &sysctl_intvec, NULL, |
1da177e4 LT |
71 | &xfs_params.symlink_mode.min, &xfs_params.symlink_mode.max}, |
72 | ||
73 | {XFS_PANIC_MASK, "panic_mask", &xfs_params.panic_mask.val, | |
74 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
a844f451 | 75 | &sysctl_intvec, NULL, |
1da177e4 LT |
76 | &xfs_params.panic_mask.min, &xfs_params.panic_mask.max}, |
77 | ||
78 | {XFS_ERRLEVEL, "error_level", &xfs_params.error_level.val, | |
79 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
a844f451 | 80 | &sysctl_intvec, NULL, |
1da177e4 LT |
81 | &xfs_params.error_level.min, &xfs_params.error_level.max}, |
82 | ||
83 | {XFS_SYNCD_TIMER, "xfssyncd_centisecs", &xfs_params.syncd_timer.val, | |
84 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
a844f451 | 85 | &sysctl_intvec, NULL, |
1da177e4 LT |
86 | &xfs_params.syncd_timer.min, &xfs_params.syncd_timer.max}, |
87 | ||
88 | {XFS_INHERIT_SYNC, "inherit_sync", &xfs_params.inherit_sync.val, | |
89 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
90 | &sysctl_intvec, NULL, | |
91 | &xfs_params.inherit_sync.min, &xfs_params.inherit_sync.max}, | |
92 | ||
93 | {XFS_INHERIT_NODUMP, "inherit_nodump", &xfs_params.inherit_nodump.val, | |
94 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
95 | &sysctl_intvec, NULL, | |
96 | &xfs_params.inherit_nodump.min, &xfs_params.inherit_nodump.max}, | |
97 | ||
98 | {XFS_INHERIT_NOATIME, "inherit_noatime", &xfs_params.inherit_noatim.val, | |
99 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
100 | &sysctl_intvec, NULL, | |
101 | &xfs_params.inherit_noatim.min, &xfs_params.inherit_noatim.max}, | |
a844f451 | 102 | |
1da177e4 LT |
103 | {XFS_BUF_TIMER, "xfsbufd_centisecs", &xfs_params.xfs_buf_timer.val, |
104 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
105 | &sysctl_intvec, NULL, | |
106 | &xfs_params.xfs_buf_timer.min, &xfs_params.xfs_buf_timer.max}, | |
107 | ||
108 | {XFS_BUF_AGE, "age_buffer_centisecs", &xfs_params.xfs_buf_age.val, | |
109 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
110 | &sysctl_intvec, NULL, | |
111 | &xfs_params.xfs_buf_age.min, &xfs_params.xfs_buf_age.max}, | |
112 | ||
113 | {XFS_INHERIT_NOSYM, "inherit_nosymlinks", &xfs_params.inherit_nosym.val, | |
114 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
115 | &sysctl_intvec, NULL, | |
116 | &xfs_params.inherit_nosym.min, &xfs_params.inherit_nosym.max}, | |
117 | ||
118 | {XFS_ROTORSTEP, "rotorstep", &xfs_params.rotorstep.val, | |
119 | sizeof(int), 0644, NULL, &proc_dointvec_minmax, | |
a844f451 | 120 | &sysctl_intvec, NULL, |
1da177e4 LT |
121 | &xfs_params.rotorstep.min, &xfs_params.rotorstep.max}, |
122 | ||
123 | /* please keep this the last entry */ | |
124 | #ifdef CONFIG_PROC_FS | |
125 | {XFS_STATS_CLEAR, "stats_clear", &xfs_params.stats_clear.val, | |
126 | sizeof(int), 0644, NULL, &xfs_stats_clear_proc_handler, | |
a844f451 | 127 | &sysctl_intvec, NULL, |
1da177e4 LT |
128 | &xfs_params.stats_clear.min, &xfs_params.stats_clear.max}, |
129 | #endif /* CONFIG_PROC_FS */ | |
130 | ||
131 | {0} | |
132 | }; | |
133 | ||
134 | STATIC ctl_table xfs_dir_table[] = { | |
135 | {FS_XFS, "xfs", NULL, 0, 0555, xfs_table}, | |
136 | {0} | |
137 | }; | |
138 | ||
139 | STATIC ctl_table xfs_root_table[] = { | |
140 | {CTL_FS, "fs", NULL, 0, 0555, xfs_dir_table}, | |
141 | {0} | |
142 | }; | |
143 | ||
144 | void | |
145 | xfs_sysctl_register(void) | |
146 | { | |
147 | xfs_table_header = register_sysctl_table(xfs_root_table, 1); | |
148 | } | |
149 | ||
150 | void | |
151 | xfs_sysctl_unregister(void) | |
152 | { | |
153 | if (xfs_table_header) | |
154 | unregister_sysctl_table(xfs_table_header); | |
155 | } |