Commit | Line | Data |
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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000-2003,2005 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 LT |
18 | #include "xfs.h" |
19 | #include <linux/proc_fs.h> | |
20 | ||
21 | DEFINE_PER_CPU(struct xfsstats, xfsstats); | |
22 | ||
48776fd2 CH |
23 | static int counter_val(int idx) |
24 | { | |
25 | int val = 0, cpu; | |
26 | ||
27 | for_each_possible_cpu(cpu) | |
28 | val += *(((__u32 *)&per_cpu(xfsstats, cpu) + idx)); | |
29 | return val; | |
30 | } | |
31 | ||
361735fd | 32 | static int xfs_stat_proc_show(struct seq_file *m, void *v) |
1da177e4 | 33 | { |
48776fd2 | 34 | int i, j; |
1da177e4 LT |
35 | __uint64_t xs_xstrat_bytes = 0; |
36 | __uint64_t xs_write_bytes = 0; | |
37 | __uint64_t xs_read_bytes = 0; | |
38 | ||
1df84c93 | 39 | static const struct xstats_entry { |
1da177e4 LT |
40 | char *desc; |
41 | int endpoint; | |
42 | } xstats[] = { | |
43 | { "extent_alloc", XFSSTAT_END_EXTENT_ALLOC }, | |
44 | { "abt", XFSSTAT_END_ALLOC_BTREE }, | |
45 | { "blk_map", XFSSTAT_END_BLOCK_MAPPING }, | |
46 | { "bmbt", XFSSTAT_END_BLOCK_MAP_BTREE }, | |
47 | { "dir", XFSSTAT_END_DIRECTORY_OPS }, | |
48 | { "trans", XFSSTAT_END_TRANSACTIONS }, | |
49 | { "ig", XFSSTAT_END_INODE_OPS }, | |
50 | { "log", XFSSTAT_END_LOG_OPS }, | |
51 | { "push_ail", XFSSTAT_END_TAIL_PUSHING }, | |
52 | { "xstrat", XFSSTAT_END_WRITE_CONVERT }, | |
53 | { "rw", XFSSTAT_END_READ_WRITE_OPS }, | |
54 | { "attr", XFSSTAT_END_ATTRIBUTE_OPS }, | |
55 | { "icluster", XFSSTAT_END_INODE_CLUSTER }, | |
56 | { "vnodes", XFSSTAT_END_VNODE_OPS }, | |
57 | { "buf", XFSSTAT_END_BUF }, | |
854929f0 DC |
58 | { "abtb2", XFSSTAT_END_ABTB_V2 }, |
59 | { "abtc2", XFSSTAT_END_ABTC_V2 }, | |
60 | { "bmbt2", XFSSTAT_END_BMBT_V2 }, | |
61 | { "ibt2", XFSSTAT_END_IBT_V2 }, | |
aafc3c24 | 62 | { "fibt2", XFSSTAT_END_FIBT_V2 }, |
48776fd2 CH |
63 | /* we print both series of quota information together */ |
64 | { "qm", XFSSTAT_END_QM }, | |
1da177e4 LT |
65 | }; |
66 | ||
67 | /* Loop over all stats groups */ | |
48776fd2 | 68 | for (i = j = 0; i < ARRAY_SIZE(xstats); i++) { |
361735fd | 69 | seq_printf(m, "%s", xstats[i].desc); |
1da177e4 | 70 | /* inner loop does each group */ |
48776fd2 CH |
71 | for (; j < xstats[i].endpoint; j++) |
72 | seq_printf(m, " %u", counter_val(j)); | |
361735fd | 73 | seq_putc(m, '\n'); |
1da177e4 LT |
74 | } |
75 | /* extra precision counters */ | |
6f0419e0 | 76 | for_each_possible_cpu(i) { |
1da177e4 LT |
77 | xs_xstrat_bytes += per_cpu(xfsstats, i).xs_xstrat_bytes; |
78 | xs_write_bytes += per_cpu(xfsstats, i).xs_write_bytes; | |
79 | xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes; | |
80 | } | |
81 | ||
361735fd | 82 | seq_printf(m, "xpc %Lu %Lu %Lu\n", |
1da177e4 | 83 | xs_xstrat_bytes, xs_write_bytes, xs_read_bytes); |
361735fd | 84 | seq_printf(m, "debug %u\n", |
1da177e4 LT |
85 | #if defined(DEBUG) |
86 | 1); | |
87 | #else | |
88 | 0); | |
89 | #endif | |
361735fd AD |
90 | return 0; |
91 | } | |
1da177e4 | 92 | |
361735fd AD |
93 | static int xfs_stat_proc_open(struct inode *inode, struct file *file) |
94 | { | |
95 | return single_open(file, xfs_stat_proc_show, NULL); | |
1da177e4 LT |
96 | } |
97 | ||
361735fd AD |
98 | static const struct file_operations xfs_stat_proc_fops = { |
99 | .owner = THIS_MODULE, | |
100 | .open = xfs_stat_proc_open, | |
101 | .read = seq_read, | |
102 | .llseek = seq_lseek, | |
103 | .release = single_release, | |
104 | }; | |
105 | ||
48776fd2 CH |
106 | /* legacy quota interfaces */ |
107 | #ifdef CONFIG_XFS_QUOTA | |
108 | static int xqm_proc_show(struct seq_file *m, void *v) | |
109 | { | |
110 | /* maximum; incore; ratio free to inuse; freelist */ | |
111 | seq_printf(m, "%d\t%d\t%d\t%u\n", | |
112 | 0, | |
113 | counter_val(XFSSTAT_END_XQMSTAT), | |
114 | 0, | |
115 | counter_val(XFSSTAT_END_XQMSTAT + 1)); | |
116 | return 0; | |
117 | } | |
118 | ||
119 | static int xqm_proc_open(struct inode *inode, struct file *file) | |
120 | { | |
121 | return single_open(file, xqm_proc_show, NULL); | |
122 | } | |
123 | ||
124 | static const struct file_operations xqm_proc_fops = { | |
125 | .owner = THIS_MODULE, | |
126 | .open = xqm_proc_open, | |
127 | .read = seq_read, | |
128 | .llseek = seq_lseek, | |
129 | .release = single_release, | |
130 | }; | |
131 | ||
132 | /* legacy quota stats interface no 2 */ | |
133 | static int xqmstat_proc_show(struct seq_file *m, void *v) | |
134 | { | |
135 | int j; | |
136 | ||
137 | seq_printf(m, "qm"); | |
138 | for (j = XFSSTAT_END_IBT_V2; j < XFSSTAT_END_XQMSTAT; j++) | |
139 | seq_printf(m, " %u", counter_val(j)); | |
140 | seq_putc(m, '\n'); | |
141 | return 0; | |
142 | } | |
143 | ||
144 | static int xqmstat_proc_open(struct inode *inode, struct file *file) | |
145 | { | |
146 | return single_open(file, xqmstat_proc_show, NULL); | |
147 | } | |
148 | ||
149 | static const struct file_operations xqmstat_proc_fops = { | |
150 | .owner = THIS_MODULE, | |
151 | .open = xqmstat_proc_open, | |
152 | .read = seq_read, | |
153 | .llseek = seq_lseek, | |
154 | .release = single_release, | |
155 | }; | |
156 | #endif /* CONFIG_XFS_QUOTA */ | |
157 | ||
9f8868ff | 158 | int |
1da177e4 LT |
159 | xfs_init_procfs(void) |
160 | { | |
161 | if (!proc_mkdir("fs/xfs", NULL)) | |
9f8868ff CH |
162 | goto out; |
163 | ||
361735fd AD |
164 | if (!proc_create("fs/xfs/stat", 0, NULL, |
165 | &xfs_stat_proc_fops)) | |
48776fd2 CH |
166 | goto out_remove_xfs_dir; |
167 | #ifdef CONFIG_XFS_QUOTA | |
168 | if (!proc_create("fs/xfs/xqmstat", 0, NULL, | |
169 | &xqmstat_proc_fops)) | |
170 | goto out_remove_stat_file; | |
171 | if (!proc_create("fs/xfs/xqm", 0, NULL, | |
172 | &xqm_proc_fops)) | |
173 | goto out_remove_xqmstat_file; | |
174 | #endif | |
9f8868ff CH |
175 | return 0; |
176 | ||
48776fd2 CH |
177 | #ifdef CONFIG_XFS_QUOTA |
178 | out_remove_xqmstat_file: | |
179 | remove_proc_entry("fs/xfs/xqmstat", NULL); | |
180 | out_remove_stat_file: | |
181 | remove_proc_entry("fs/xfs/stat", NULL); | |
182 | #endif | |
183 | out_remove_xfs_dir: | |
9f8868ff CH |
184 | remove_proc_entry("fs/xfs", NULL); |
185 | out: | |
186 | return -ENOMEM; | |
1da177e4 LT |
187 | } |
188 | ||
189 | void | |
190 | xfs_cleanup_procfs(void) | |
191 | { | |
48776fd2 CH |
192 | #ifdef CONFIG_XFS_QUOTA |
193 | remove_proc_entry("fs/xfs/xqm", NULL); | |
194 | remove_proc_entry("fs/xfs/xqmstat", NULL); | |
195 | #endif | |
1da177e4 LT |
196 | remove_proc_entry("fs/xfs/stat", NULL); |
197 | remove_proc_entry("fs/xfs", NULL); | |
198 | } |