2 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
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
7 * published by the Free Software Foundation.
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.
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
19 #include <linux/proc_fs.h>
21 DEFINE_PER_CPU(struct xfsstats, xfsstats);
23 static int counter_val(int idx)
27 for_each_possible_cpu(cpu)
28 val += *(((__u32 *)&per_cpu(xfsstats, cpu) + idx));
32 int xfs_stats_format(char *buf)
36 __uint64_t xs_xstrat_bytes = 0;
37 __uint64_t xs_write_bytes = 0;
38 __uint64_t xs_read_bytes = 0;
40 static const struct xstats_entry {
44 { "extent_alloc", XFSSTAT_END_EXTENT_ALLOC },
45 { "abt", XFSSTAT_END_ALLOC_BTREE },
46 { "blk_map", XFSSTAT_END_BLOCK_MAPPING },
47 { "bmbt", XFSSTAT_END_BLOCK_MAP_BTREE },
48 { "dir", XFSSTAT_END_DIRECTORY_OPS },
49 { "trans", XFSSTAT_END_TRANSACTIONS },
50 { "ig", XFSSTAT_END_INODE_OPS },
51 { "log", XFSSTAT_END_LOG_OPS },
52 { "push_ail", XFSSTAT_END_TAIL_PUSHING },
53 { "xstrat", XFSSTAT_END_WRITE_CONVERT },
54 { "rw", XFSSTAT_END_READ_WRITE_OPS },
55 { "attr", XFSSTAT_END_ATTRIBUTE_OPS },
56 { "icluster", XFSSTAT_END_INODE_CLUSTER },
57 { "vnodes", XFSSTAT_END_VNODE_OPS },
58 { "buf", XFSSTAT_END_BUF },
59 { "abtb2", XFSSTAT_END_ABTB_V2 },
60 { "abtc2", XFSSTAT_END_ABTC_V2 },
61 { "bmbt2", XFSSTAT_END_BMBT_V2 },
62 { "ibt2", XFSSTAT_END_IBT_V2 },
63 { "fibt2", XFSSTAT_END_FIBT_V2 },
64 /* we print both series of quota information together */
65 { "qm", XFSSTAT_END_QM },
68 /* Loop over all stats groups */
70 for (i = j = 0; i < ARRAY_SIZE(xstats); i++) {
71 len += snprintf(buf + len, PATH_MAX - len, "%s",
73 /* inner loop does each group */
74 for (; j < xstats[i].endpoint; j++)
75 len += snprintf(buf + len, PATH_MAX - len, " %u",
77 len += snprintf(buf + len, PATH_MAX - len, "\n");
79 /* extra precision counters */
80 for_each_possible_cpu(i) {
81 xs_xstrat_bytes += per_cpu(xfsstats, i).xs_xstrat_bytes;
82 xs_write_bytes += per_cpu(xfsstats, i).xs_write_bytes;
83 xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes;
86 len += snprintf(buf + len, PATH_MAX-len, "xpc %Lu %Lu %Lu\n",
87 xs_xstrat_bytes, xs_write_bytes, xs_read_bytes);
88 len += snprintf(buf + len, PATH_MAX-len, "debug %u\n",
98 void xfs_stats_clearall(void)
101 __uint32_t vn_active;
103 xfs_notice(NULL, "Clearing xfsstats");
104 for_each_possible_cpu(c) {
106 /* save vn_active, it's a universal truth! */
107 vn_active = per_cpu(xfsstats, c).vn_active;
108 memset(&per_cpu(xfsstats, c), 0, sizeof(struct xfsstats));
109 per_cpu(xfsstats, c).vn_active = vn_active;
114 static int xfs_stat_proc_show(struct seq_file *m, void *v)
117 __uint64_t xs_xstrat_bytes = 0;
118 __uint64_t xs_write_bytes = 0;
119 __uint64_t xs_read_bytes = 0;
121 static const struct xstats_entry {
125 { "extent_alloc", XFSSTAT_END_EXTENT_ALLOC },
126 { "abt", XFSSTAT_END_ALLOC_BTREE },
127 { "blk_map", XFSSTAT_END_BLOCK_MAPPING },
128 { "bmbt", XFSSTAT_END_BLOCK_MAP_BTREE },
129 { "dir", XFSSTAT_END_DIRECTORY_OPS },
130 { "trans", XFSSTAT_END_TRANSACTIONS },
131 { "ig", XFSSTAT_END_INODE_OPS },
132 { "log", XFSSTAT_END_LOG_OPS },
133 { "push_ail", XFSSTAT_END_TAIL_PUSHING },
134 { "xstrat", XFSSTAT_END_WRITE_CONVERT },
135 { "rw", XFSSTAT_END_READ_WRITE_OPS },
136 { "attr", XFSSTAT_END_ATTRIBUTE_OPS },
137 { "icluster", XFSSTAT_END_INODE_CLUSTER },
138 { "vnodes", XFSSTAT_END_VNODE_OPS },
139 { "buf", XFSSTAT_END_BUF },
140 { "abtb2", XFSSTAT_END_ABTB_V2 },
141 { "abtc2", XFSSTAT_END_ABTC_V2 },
142 { "bmbt2", XFSSTAT_END_BMBT_V2 },
143 { "ibt2", XFSSTAT_END_IBT_V2 },
144 { "fibt2", XFSSTAT_END_FIBT_V2 },
145 /* we print both series of quota information together */
146 { "qm", XFSSTAT_END_QM },
149 /* Loop over all stats groups */
150 for (i = j = 0; i < ARRAY_SIZE(xstats); i++) {
151 seq_printf(m, "%s", xstats[i].desc);
152 /* inner loop does each group */
153 for (; j < xstats[i].endpoint; j++)
154 seq_printf(m, " %u", counter_val(j));
157 /* extra precision counters */
158 for_each_possible_cpu(i) {
159 xs_xstrat_bytes += per_cpu(xfsstats, i).xs_xstrat_bytes;
160 xs_write_bytes += per_cpu(xfsstats, i).xs_write_bytes;
161 xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes;
164 seq_printf(m, "xpc %Lu %Lu %Lu\n",
165 xs_xstrat_bytes, xs_write_bytes, xs_read_bytes);
166 seq_printf(m, "debug %u\n",
175 static int xfs_stat_proc_open(struct inode *inode, struct file *file)
177 return single_open(file, xfs_stat_proc_show, NULL);
180 static const struct file_operations xfs_stat_proc_fops = {
181 .owner = THIS_MODULE,
182 .open = xfs_stat_proc_open,
185 .release = single_release,
188 /* legacy quota interfaces */
189 #ifdef CONFIG_XFS_QUOTA
190 static int xqm_proc_show(struct seq_file *m, void *v)
192 /* maximum; incore; ratio free to inuse; freelist */
193 seq_printf(m, "%d\t%d\t%d\t%u\n",
195 counter_val(XFSSTAT_END_XQMSTAT),
197 counter_val(XFSSTAT_END_XQMSTAT + 1));
201 static int xqm_proc_open(struct inode *inode, struct file *file)
203 return single_open(file, xqm_proc_show, NULL);
206 static const struct file_operations xqm_proc_fops = {
207 .owner = THIS_MODULE,
208 .open = xqm_proc_open,
211 .release = single_release,
214 /* legacy quota stats interface no 2 */
215 static int xqmstat_proc_show(struct seq_file *m, void *v)
220 for (j = XFSSTAT_END_IBT_V2; j < XFSSTAT_END_XQMSTAT; j++)
221 seq_printf(m, " %u", counter_val(j));
226 static int xqmstat_proc_open(struct inode *inode, struct file *file)
228 return single_open(file, xqmstat_proc_show, NULL);
231 static const struct file_operations xqmstat_proc_fops = {
232 .owner = THIS_MODULE,
233 .open = xqmstat_proc_open,
236 .release = single_release,
238 #endif /* CONFIG_XFS_QUOTA */
241 xfs_init_procfs(void)
243 if (!proc_mkdir("fs/xfs", NULL))
246 if (!proc_create("fs/xfs/stat", 0, NULL,
247 &xfs_stat_proc_fops))
248 goto out_remove_xfs_dir;
249 #ifdef CONFIG_XFS_QUOTA
250 if (!proc_create("fs/xfs/xqmstat", 0, NULL,
252 goto out_remove_stat_file;
253 if (!proc_create("fs/xfs/xqm", 0, NULL,
255 goto out_remove_xqmstat_file;
259 #ifdef CONFIG_XFS_QUOTA
260 out_remove_xqmstat_file:
261 remove_proc_entry("fs/xfs/xqmstat", NULL);
262 out_remove_stat_file:
263 remove_proc_entry("fs/xfs/stat", NULL);
266 remove_proc_entry("fs/xfs", NULL);
272 xfs_cleanup_procfs(void)
274 #ifdef CONFIG_XFS_QUOTA
275 remove_proc_entry("fs/xfs/xqm", NULL);
276 remove_proc_entry("fs/xfs/xqmstat", NULL);
278 remove_proc_entry("fs/xfs/stat", NULL);
279 remove_proc_entry("fs/xfs", NULL);