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Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
[~shefty/rdma-dev.git] / fs / xfs / xfs_qm_stats.c
1 /*
2  * Copyright (c) 2000-2003 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 "xfs_fs.h"
20 #include "xfs_bit.h"
21 #include "xfs_log.h"
22 #include "xfs_inum.h"
23 #include "xfs_trans.h"
24 #include "xfs_sb.h"
25 #include "xfs_ag.h"
26 #include "xfs_alloc.h"
27 #include "xfs_quota.h"
28 #include "xfs_mount.h"
29 #include "xfs_bmap_btree.h"
30 #include "xfs_inode.h"
31 #include "xfs_itable.h"
32 #include "xfs_bmap.h"
33 #include "xfs_rtalloc.h"
34 #include "xfs_error.h"
35 #include "xfs_attr.h"
36 #include "xfs_buf_item.h"
37 #include "xfs_qm.h"
38
39 struct xqmstats xqmstats;
40
41 static int xqm_proc_show(struct seq_file *m, void *v)
42 {
43         /* maximum; incore; ratio free to inuse; freelist */
44         seq_printf(m, "%d\t%d\t%d\t%u\n",
45                         0,
46                         xfs_Gqm? atomic_read(&xfs_Gqm->qm_totaldquots) : 0,
47                         0,
48                         xfs_Gqm? xfs_Gqm->qm_dqfrlist_cnt : 0);
49         return 0;
50 }
51
52 static int xqm_proc_open(struct inode *inode, struct file *file)
53 {
54         return single_open(file, xqm_proc_show, NULL);
55 }
56
57 static const struct file_operations xqm_proc_fops = {
58         .owner          = THIS_MODULE,
59         .open           = xqm_proc_open,
60         .read           = seq_read,
61         .llseek         = seq_lseek,
62         .release        = single_release,
63 };
64
65 static int xqmstat_proc_show(struct seq_file *m, void *v)
66 {
67         /* quota performance statistics */
68         seq_printf(m, "qm %u %u %u %u %u %u %u %u\n",
69                         xqmstats.xs_qm_dqreclaims,
70                         xqmstats.xs_qm_dqreclaim_misses,
71                         xqmstats.xs_qm_dquot_dups,
72                         xqmstats.xs_qm_dqcachemisses,
73                         xqmstats.xs_qm_dqcachehits,
74                         xqmstats.xs_qm_dqwants,
75                         xqmstats.xs_qm_dqshake_reclaims,
76                         xqmstats.xs_qm_dqinact_reclaims);
77         return 0;
78 }
79
80 static int xqmstat_proc_open(struct inode *inode, struct file *file)
81 {
82         return single_open(file, xqmstat_proc_show, NULL);
83 }
84
85 static const struct file_operations xqmstat_proc_fops = {
86         .owner          = THIS_MODULE,
87         .open           = xqmstat_proc_open,
88         .read           = seq_read,
89         .llseek         = seq_lseek,
90         .release        = single_release,
91 };
92
93 void
94 xfs_qm_init_procfs(void)
95 {
96         proc_create("fs/xfs/xqmstat", 0, NULL, &xqmstat_proc_fops);
97         proc_create("fs/xfs/xqm", 0, NULL, &xqm_proc_fops);
98 }
99
100 void
101 xfs_qm_cleanup_procfs(void)
102 {
103         remove_proc_entry("fs/xfs/xqm", NULL);
104         remove_proc_entry("fs/xfs/xqmstat", NULL);
105 }