Correct .gbs.conf settings
[platform/adaptation/renesas_rcar/renesas_kernel.git] / fs / xfs / xfs_stats.c
1 /*
2  * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
3  * All Rights Reserved.
4  *
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.
8  *
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.
13  *
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
17  */
18 #include "xfs.h"
19 #include <linux/proc_fs.h>
20
21 DEFINE_PER_CPU(struct xfsstats, xfsstats);
22
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
32 static int xfs_stat_proc_show(struct seq_file *m, void *v)
33 {
34         int             i, j;
35         __uint64_t      xs_xstrat_bytes = 0;
36         __uint64_t      xs_write_bytes = 0;
37         __uint64_t      xs_read_bytes = 0;
38
39         static const struct xstats_entry {
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                 },
58                 { "abtb2",              XFSSTAT_END_ABTB_V2             },
59                 { "abtc2",              XFSSTAT_END_ABTC_V2             },
60                 { "bmbt2",              XFSSTAT_END_BMBT_V2             },
61                 { "ibt2",               XFSSTAT_END_IBT_V2              },
62                 /* we print both series of quota information together */
63                 { "qm",                 XFSSTAT_END_QM                  },
64         };
65
66         /* Loop over all stats groups */
67         for (i = j = 0; i < ARRAY_SIZE(xstats); i++) {
68                 seq_printf(m, "%s", xstats[i].desc);
69                 /* inner loop does each group */
70                 for (; j < xstats[i].endpoint; j++)
71                         seq_printf(m, " %u", counter_val(j));
72                 seq_putc(m, '\n');
73         }
74         /* extra precision counters */
75         for_each_possible_cpu(i) {
76                 xs_xstrat_bytes += per_cpu(xfsstats, i).xs_xstrat_bytes;
77                 xs_write_bytes += per_cpu(xfsstats, i).xs_write_bytes;
78                 xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes;
79         }
80
81         seq_printf(m, "xpc %Lu %Lu %Lu\n",
82                         xs_xstrat_bytes, xs_write_bytes, xs_read_bytes);
83         seq_printf(m, "debug %u\n",
84 #if defined(DEBUG)
85                 1);
86 #else
87                 0);
88 #endif
89         return 0;
90 }
91
92 static int xfs_stat_proc_open(struct inode *inode, struct file *file)
93 {
94         return single_open(file, xfs_stat_proc_show, NULL);
95 }
96
97 static const struct file_operations xfs_stat_proc_fops = {
98         .owner          = THIS_MODULE,
99         .open           = xfs_stat_proc_open,
100         .read           = seq_read,
101         .llseek         = seq_lseek,
102         .release        = single_release,
103 };
104
105 /* legacy quota interfaces */
106 #ifdef CONFIG_XFS_QUOTA
107 static int xqm_proc_show(struct seq_file *m, void *v)
108 {
109         /* maximum; incore; ratio free to inuse; freelist */
110         seq_printf(m, "%d\t%d\t%d\t%u\n",
111                         0,
112                         counter_val(XFSSTAT_END_XQMSTAT),
113                         0,
114                         counter_val(XFSSTAT_END_XQMSTAT + 1));
115         return 0;
116 }
117
118 static int xqm_proc_open(struct inode *inode, struct file *file)
119 {
120         return single_open(file, xqm_proc_show, NULL);
121 }
122
123 static const struct file_operations xqm_proc_fops = {
124         .owner          = THIS_MODULE,
125         .open           = xqm_proc_open,
126         .read           = seq_read,
127         .llseek         = seq_lseek,
128         .release        = single_release,
129 };
130
131 /* legacy quota stats interface no 2 */
132 static int xqmstat_proc_show(struct seq_file *m, void *v)
133 {
134         int j;
135
136         seq_printf(m, "qm");
137         for (j = XFSSTAT_END_IBT_V2; j < XFSSTAT_END_XQMSTAT; j++)
138                 seq_printf(m, " %u", counter_val(j));
139         seq_putc(m, '\n');
140         return 0;
141 }
142
143 static int xqmstat_proc_open(struct inode *inode, struct file *file)
144 {
145         return single_open(file, xqmstat_proc_show, NULL);
146 }
147
148 static const struct file_operations xqmstat_proc_fops = {
149         .owner          = THIS_MODULE,
150         .open           = xqmstat_proc_open,
151         .read           = seq_read,
152         .llseek         = seq_lseek,
153         .release        = single_release,
154 };
155 #endif /* CONFIG_XFS_QUOTA */
156
157 int
158 xfs_init_procfs(void)
159 {
160         if (!proc_mkdir("fs/xfs", NULL))
161                 goto out;
162
163         if (!proc_create("fs/xfs/stat", 0, NULL,
164                          &xfs_stat_proc_fops))
165                 goto out_remove_xfs_dir;
166 #ifdef CONFIG_XFS_QUOTA
167         if (!proc_create("fs/xfs/xqmstat", 0, NULL,
168                          &xqmstat_proc_fops))
169                 goto out_remove_stat_file;
170         if (!proc_create("fs/xfs/xqm", 0, NULL,
171                          &xqm_proc_fops))
172                 goto out_remove_xqmstat_file;
173 #endif
174         return 0;
175
176 #ifdef CONFIG_XFS_QUOTA
177  out_remove_xqmstat_file:
178         remove_proc_entry("fs/xfs/xqmstat", NULL);
179  out_remove_stat_file:
180         remove_proc_entry("fs/xfs/stat", NULL);
181 #endif
182  out_remove_xfs_dir:
183         remove_proc_entry("fs/xfs", NULL);
184  out:
185         return -ENOMEM;
186 }
187
188 void
189 xfs_cleanup_procfs(void)
190 {
191 #ifdef CONFIG_XFS_QUOTA
192         remove_proc_entry("fs/xfs/xqm", NULL);
193         remove_proc_entry("fs/xfs/xqmstat", NULL);
194 #endif
195         remove_proc_entry("fs/xfs/stat", NULL);
196         remove_proc_entry("fs/xfs", NULL);
197 }