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 | ||
361735fd | 23 | static int xfs_stat_proc_show(struct seq_file *m, void *v) |
1da177e4 | 24 | { |
361735fd | 25 | int c, i, j, val; |
1da177e4 LT |
26 | __uint64_t xs_xstrat_bytes = 0; |
27 | __uint64_t xs_write_bytes = 0; | |
28 | __uint64_t xs_read_bytes = 0; | |
29 | ||
1df84c93 | 30 | static const struct xstats_entry { |
1da177e4 LT |
31 | char *desc; |
32 | int endpoint; | |
33 | } xstats[] = { | |
34 | { "extent_alloc", XFSSTAT_END_EXTENT_ALLOC }, | |
35 | { "abt", XFSSTAT_END_ALLOC_BTREE }, | |
36 | { "blk_map", XFSSTAT_END_BLOCK_MAPPING }, | |
37 | { "bmbt", XFSSTAT_END_BLOCK_MAP_BTREE }, | |
38 | { "dir", XFSSTAT_END_DIRECTORY_OPS }, | |
39 | { "trans", XFSSTAT_END_TRANSACTIONS }, | |
40 | { "ig", XFSSTAT_END_INODE_OPS }, | |
41 | { "log", XFSSTAT_END_LOG_OPS }, | |
42 | { "push_ail", XFSSTAT_END_TAIL_PUSHING }, | |
43 | { "xstrat", XFSSTAT_END_WRITE_CONVERT }, | |
44 | { "rw", XFSSTAT_END_READ_WRITE_OPS }, | |
45 | { "attr", XFSSTAT_END_ATTRIBUTE_OPS }, | |
46 | { "icluster", XFSSTAT_END_INODE_CLUSTER }, | |
47 | { "vnodes", XFSSTAT_END_VNODE_OPS }, | |
48 | { "buf", XFSSTAT_END_BUF }, | |
854929f0 DC |
49 | { "abtb2", XFSSTAT_END_ABTB_V2 }, |
50 | { "abtc2", XFSSTAT_END_ABTC_V2 }, | |
51 | { "bmbt2", XFSSTAT_END_BMBT_V2 }, | |
52 | { "ibt2", XFSSTAT_END_IBT_V2 }, | |
1da177e4 LT |
53 | }; |
54 | ||
55 | /* Loop over all stats groups */ | |
361735fd AD |
56 | for (i=j = 0; i < ARRAY_SIZE(xstats); i++) { |
57 | seq_printf(m, "%s", xstats[i].desc); | |
1da177e4 LT |
58 | /* inner loop does each group */ |
59 | while (j < xstats[i].endpoint) { | |
60 | val = 0; | |
61 | /* sum over all cpus */ | |
6f0419e0 | 62 | for_each_possible_cpu(c) |
1da177e4 | 63 | val += *(((__u32*)&per_cpu(xfsstats, c) + j)); |
361735fd | 64 | seq_printf(m, " %u", val); |
1da177e4 LT |
65 | j++; |
66 | } | |
361735fd | 67 | seq_putc(m, '\n'); |
1da177e4 LT |
68 | } |
69 | /* extra precision counters */ | |
6f0419e0 | 70 | for_each_possible_cpu(i) { |
1da177e4 LT |
71 | xs_xstrat_bytes += per_cpu(xfsstats, i).xs_xstrat_bytes; |
72 | xs_write_bytes += per_cpu(xfsstats, i).xs_write_bytes; | |
73 | xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes; | |
74 | } | |
75 | ||
361735fd | 76 | seq_printf(m, "xpc %Lu %Lu %Lu\n", |
1da177e4 | 77 | xs_xstrat_bytes, xs_write_bytes, xs_read_bytes); |
361735fd | 78 | seq_printf(m, "debug %u\n", |
1da177e4 LT |
79 | #if defined(DEBUG) |
80 | 1); | |
81 | #else | |
82 | 0); | |
83 | #endif | |
361735fd AD |
84 | return 0; |
85 | } | |
1da177e4 | 86 | |
361735fd AD |
87 | static int xfs_stat_proc_open(struct inode *inode, struct file *file) |
88 | { | |
89 | return single_open(file, xfs_stat_proc_show, NULL); | |
1da177e4 LT |
90 | } |
91 | ||
361735fd AD |
92 | static const struct file_operations xfs_stat_proc_fops = { |
93 | .owner = THIS_MODULE, | |
94 | .open = xfs_stat_proc_open, | |
95 | .read = seq_read, | |
96 | .llseek = seq_lseek, | |
97 | .release = single_release, | |
98 | }; | |
99 | ||
9f8868ff | 100 | int |
1da177e4 LT |
101 | xfs_init_procfs(void) |
102 | { | |
103 | if (!proc_mkdir("fs/xfs", NULL)) | |
9f8868ff CH |
104 | goto out; |
105 | ||
361735fd AD |
106 | if (!proc_create("fs/xfs/stat", 0, NULL, |
107 | &xfs_stat_proc_fops)) | |
9f8868ff CH |
108 | goto out_remove_entry; |
109 | return 0; | |
110 | ||
111 | out_remove_entry: | |
112 | remove_proc_entry("fs/xfs", NULL); | |
113 | out: | |
114 | return -ENOMEM; | |
1da177e4 LT |
115 | } |
116 | ||
117 | void | |
118 | xfs_cleanup_procfs(void) | |
119 | { | |
120 | remove_proc_entry("fs/xfs/stat", NULL); | |
121 | remove_proc_entry("fs/xfs", NULL); | |
122 | } |