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-rw-r--r--fs/coda/sysctl.c228
1 files changed, 3 insertions, 225 deletions
diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
index c57a1fa7cf23..81b7771c6465 100644
--- a/fs/coda/sysctl.c
+++ b/fs/coda/sysctl.c
@@ -5,181 +5,14 @@
5 * 5 *
6 * Carnegie Mellon encourages users to contribute improvements to 6 * Carnegie Mellon encourages users to contribute improvements to
7 * the Coda project. Contact Peter Braam (coda@cs.cmu.edu). 7 * the Coda project. Contact Peter Braam (coda@cs.cmu.edu).
8 *
9 * CODA operation statistics
10 * (c) March, 1998 Zhanyong Wan <zhanyong.wan@yale.edu>
11 *
12 */ 8 */
13 9
14#include <linux/time.h>
15#include <linux/mm.h>
16#include <linux/sysctl.h> 10#include <linux/sysctl.h>
17#include <linux/proc_fs.h>
18#include <linux/seq_file.h>
19#include <linux/slab.h>
20#include <linux/stat.h>
21#include <linux/ctype.h>
22#include <linux/bitops.h>
23#include <asm/uaccess.h>
24#include <linux/utsname.h>
25#include <linux/module.h>
26 11
27#include <linux/coda.h> 12#include "coda_int.h"
28#include <linux/coda_linux.h>
29#include <linux/coda_fs_i.h>
30#include <linux/coda_psdev.h>
31#include <linux/coda_cache.h>
32#include <linux/coda_proc.h>
33 13
34static struct ctl_table_header *fs_table_header; 14static struct ctl_table_header *fs_table_header;
35 15
36#define CODA_TIMEOUT 3 /* timeout on upcalls to become intrble */
37#define CODA_HARD 5 /* mount type "hard" or "soft" */
38#define CODA_VFS 6 /* vfs statistics */
39#define CODA_CACHE_INV 9 /* cache invalidation statistics */
40#define CODA_FAKE_STATFS 10 /* don't query venus for actual cache usage */
41
42struct coda_vfs_stats coda_vfs_stat;
43static struct coda_cache_inv_stats coda_cache_inv_stat;
44
45static void reset_coda_vfs_stats( void )
46{
47 memset( &coda_vfs_stat, 0, sizeof( coda_vfs_stat ) );
48}
49
50static void reset_coda_cache_inv_stats( void )
51{
52 memset( &coda_cache_inv_stat, 0, sizeof( coda_cache_inv_stat ) );
53}
54
55static int do_reset_coda_vfs_stats( ctl_table * table, int write,
56 struct file * filp, void __user * buffer,
57 size_t * lenp, loff_t * ppos )
58{
59 if ( write ) {
60 reset_coda_vfs_stats();
61
62 *ppos += *lenp;
63 } else {
64 *lenp = 0;
65 }
66
67 return 0;
68}
69
70static int do_reset_coda_cache_inv_stats( ctl_table * table, int write,
71 struct file * filp,
72 void __user * buffer,
73 size_t * lenp, loff_t * ppos )
74{
75 if ( write ) {
76 reset_coda_cache_inv_stats();
77
78 *ppos += *lenp;
79 } else {
80 *lenp = 0;
81 }
82
83 return 0;
84}
85
86static int proc_vfs_stats_show(struct seq_file *m, void *v)
87{
88 struct coda_vfs_stats * ps = & coda_vfs_stat;
89
90 seq_printf(m,
91 "Coda VFS statistics\n"
92 "===================\n\n"
93 "File Operations:\n"
94 "\topen\t\t%9d\n"
95 "\tflush\t\t%9d\n"
96 "\trelease\t\t%9d\n"
97 "\tfsync\t\t%9d\n\n"
98 "Dir Operations:\n"
99 "\treaddir\t\t%9d\n\n"
100 "Inode Operations\n"
101 "\tcreate\t\t%9d\n"
102 "\tlookup\t\t%9d\n"
103 "\tlink\t\t%9d\n"
104 "\tunlink\t\t%9d\n"
105 "\tsymlink\t\t%9d\n"
106 "\tmkdir\t\t%9d\n"
107 "\trmdir\t\t%9d\n"
108 "\trename\t\t%9d\n"
109 "\tpermission\t%9d\n",
110
111 /* file operations */
112 ps->open,
113 ps->flush,
114 ps->release,
115 ps->fsync,
116
117 /* dir operations */
118 ps->readdir,
119
120 /* inode operations */
121 ps->create,
122 ps->lookup,
123 ps->link,
124 ps->unlink,
125 ps->symlink,
126 ps->mkdir,
127 ps->rmdir,
128 ps->rename,
129 ps->permission);
130 return 0;
131}
132
133static int proc_cache_inv_stats_show(struct seq_file *m, void *v)
134{
135 struct coda_cache_inv_stats * ps = & coda_cache_inv_stat;
136
137 seq_printf(m,
138 "Coda cache invalidation statistics\n"
139 "==================================\n\n"
140 "flush\t\t%9d\n"
141 "purge user\t%9d\n"
142 "zap_dir\t\t%9d\n"
143 "zap_file\t%9d\n"
144 "zap_vnode\t%9d\n"
145 "purge_fid\t%9d\n"
146 "replace\t\t%9d\n",
147 ps->flush,
148 ps->purge_user,
149 ps->zap_dir,
150 ps->zap_file,
151 ps->zap_vnode,
152 ps->purge_fid,
153 ps->replace );
154 return 0;
155}
156
157static int proc_vfs_stats_open(struct inode *inode, struct file *file)
158{
159 return single_open(file, proc_vfs_stats_show, NULL);
160}
161
162static int proc_cache_inv_stats_open(struct inode *inode, struct file *file)
163{
164 return single_open(file, proc_cache_inv_stats_show, NULL);
165}
166
167static const struct file_operations proc_vfs_stats_fops = {
168 .owner = THIS_MODULE,
169 .open = proc_vfs_stats_open,
170 .read = seq_read,
171 .llseek = seq_lseek,
172 .release = single_release,
173};
174
175static const struct file_operations proc_cache_inv_stats_fops = {
176 .owner = THIS_MODULE,
177 .open = proc_cache_inv_stats_open,
178 .read = seq_read,
179 .llseek = seq_lseek,
180 .release = single_release,
181};
182
183static ctl_table coda_table[] = { 16static ctl_table coda_table[] = {
184 { 17 {
185 .ctl_name = CTL_UNNUMBERED, 18 .ctl_name = CTL_UNNUMBERED,
@@ -199,22 +32,6 @@ static ctl_table coda_table[] = {
199 }, 32 },
200 { 33 {
201 .ctl_name = CTL_UNNUMBERED, 34 .ctl_name = CTL_UNNUMBERED,
202 .procname = "vfs_stats",
203 .data = NULL,
204 .maxlen = 0,
205 .mode = 0644,
206 .proc_handler = &do_reset_coda_vfs_stats
207 },
208 {
209 .ctl_name = CTL_UNNUMBERED,
210 .procname = "cache_inv_stats",
211 .data = NULL,
212 .maxlen = 0,
213 .mode = 0644,
214 .proc_handler = &do_reset_coda_cache_inv_stats
215 },
216 {
217 .ctl_name = CTL_UNNUMBERED,
218 .procname = "fake_statfs", 35 .procname = "fake_statfs",
219 .data = &coda_fake_statfs, 36 .data = &coda_fake_statfs,
220 .maxlen = sizeof(int), 37 .maxlen = sizeof(int),
@@ -235,59 +52,20 @@ static ctl_table fs_table[] = {
235}; 52};
236 53
237 54
238#ifdef CONFIG_PROC_FS
239
240/*
241 target directory structure:
242 /proc/fs (see linux/fs/proc/root.c)
243 /proc/fs/coda
244 /proc/fs/coda/{vfs_stats,
245
246*/
247
248static struct proc_dir_entry* proc_fs_coda;
249
250#endif
251
252void coda_sysctl_init(void) 55void coda_sysctl_init(void)
253{ 56{
254 reset_coda_vfs_stats();
255 reset_coda_cache_inv_stats();
256
257#ifdef CONFIG_PROC_FS
258 proc_fs_coda = proc_mkdir("coda", proc_root_fs);
259 if (proc_fs_coda) {
260 struct proc_dir_entry *pde;
261
262 proc_fs_coda->owner = THIS_MODULE;
263 pde = create_proc_entry("vfs_stats", 0, proc_fs_coda);
264 if (pde)
265 pde->proc_fops = &proc_vfs_stats_fops;
266 pde = create_proc_entry("cache_inv_stats", 0, proc_fs_coda);
267 if (pde)
268 pde->proc_fops = &proc_cache_inv_stats_fops;
269 }
270#endif
271
272#ifdef CONFIG_SYSCTL 57#ifdef CONFIG_SYSCTL
273 if ( !fs_table_header ) 58 if ( !fs_table_header )
274 fs_table_header = register_sysctl_table(fs_table); 59 fs_table_header = register_sysctl_table(fs_table);
275#endif 60#endif
276} 61}
277 62
278void coda_sysctl_clean(void) 63void coda_sysctl_clean(void)
279{ 64{
280
281#ifdef CONFIG_SYSCTL 65#ifdef CONFIG_SYSCTL
282 if ( fs_table_header ) { 66 if ( fs_table_header ) {
283 unregister_sysctl_table(fs_table_header); 67 unregister_sysctl_table(fs_table_header);
284 fs_table_header = NULL; 68 fs_table_header = NULL;
285 } 69 }
286#endif 70#endif
287
288#ifdef CONFIG_PROC_FS
289 remove_proc_entry("cache_inv_stats", proc_fs_coda);
290 remove_proc_entry("vfs_stats", proc_fs_coda);
291 remove_proc_entry("coda", proc_root_fs);
292#endif
293} 71}
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