Commit | Line | Data |
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0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
7b718769 NS |
3 | * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. | |
1da177e4 | 5 | */ |
1da177e4 | 6 | #include "xfs.h" |
1da177e4 | 7 | |
80529c45 | 8 | struct xstats xfsstats; |
1da177e4 | 9 | |
80529c45 | 10 | static int counter_val(struct xfsstats __percpu *stats, int idx) |
48776fd2 CH |
11 | { |
12 | int val = 0, cpu; | |
13 | ||
14 | for_each_possible_cpu(cpu) | |
80529c45 | 15 | val += *(((__u32 *)per_cpu_ptr(stats, cpu) + idx)); |
48776fd2 CH |
16 | return val; |
17 | } | |
18 | ||
80529c45 | 19 | int xfs_stats_format(struct xfsstats __percpu *stats, char *buf) |
bb230c12 BD |
20 | { |
21 | int i, j; | |
22 | int len = 0; | |
c8ce540d DW |
23 | uint64_t xs_xstrat_bytes = 0; |
24 | uint64_t xs_write_bytes = 0; | |
25 | uint64_t xs_read_bytes = 0; | |
4e919af7 | 26 | uint64_t defer_relog = 0; |
bb230c12 BD |
27 | |
28 | static const struct xstats_entry { | |
29 | char *desc; | |
30 | int endpoint; | |
31 | } xstats[] = { | |
26ca3901 CM |
32 | { "extent_alloc", xfsstats_offset(xs_abt_lookup) }, |
33 | { "abt", xfsstats_offset(xs_blk_mapr) }, | |
34 | { "blk_map", xfsstats_offset(xs_bmbt_lookup) }, | |
35 | { "bmbt", xfsstats_offset(xs_dir_lookup) }, | |
36 | { "dir", xfsstats_offset(xs_trans_sync) }, | |
37 | { "trans", xfsstats_offset(xs_ig_attempts) }, | |
38 | { "ig", xfsstats_offset(xs_log_writes) }, | |
39 | { "log", xfsstats_offset(xs_try_logspace)}, | |
40 | { "push_ail", xfsstats_offset(xs_xstrat_quick)}, | |
41 | { "xstrat", xfsstats_offset(xs_write_calls) }, | |
42 | { "rw", xfsstats_offset(xs_attr_get) }, | |
43 | { "attr", xfsstats_offset(xs_iflush_count)}, | |
44 | { "icluster", xfsstats_offset(vn_active) }, | |
45 | { "vnodes", xfsstats_offset(xb_get) }, | |
46 | { "buf", xfsstats_offset(xs_abtb_2) }, | |
47 | { "abtb2", xfsstats_offset(xs_abtc_2) }, | |
48 | { "abtc2", xfsstats_offset(xs_bmbt_2) }, | |
49 | { "bmbt2", xfsstats_offset(xs_ibt_2) }, | |
50 | { "ibt2", xfsstats_offset(xs_fibt_2) }, | |
51 | { "fibt2", xfsstats_offset(xs_rmap_2) }, | |
52 | { "rmapbt", xfsstats_offset(xs_refcbt_2) }, | |
4787fc80 | 53 | { "refcntbt", xfsstats_offset(xs_rmap_mem_2) }, |
18a1e644 DW |
54 | { "rmapbt_mem", xfsstats_offset(xs_rcbag_2) }, |
55 | { "rcbagbt", xfsstats_offset(xs_qm_dqreclaims)}, | |
bb230c12 | 56 | /* we print both series of quota information together */ |
26ca3901 | 57 | { "qm", xfsstats_offset(xs_xstrat_bytes)}, |
bb230c12 BD |
58 | }; |
59 | ||
60 | /* Loop over all stats groups */ | |
61 | ||
62 | for (i = j = 0; i < ARRAY_SIZE(xstats); i++) { | |
17bb60b7 | 63 | len += scnprintf(buf + len, PATH_MAX - len, "%s", |
bb230c12 BD |
64 | xstats[i].desc); |
65 | /* inner loop does each group */ | |
66 | for (; j < xstats[i].endpoint; j++) | |
17bb60b7 | 67 | len += scnprintf(buf + len, PATH_MAX - len, " %u", |
80529c45 | 68 | counter_val(stats, j)); |
17bb60b7 | 69 | len += scnprintf(buf + len, PATH_MAX - len, "\n"); |
bb230c12 BD |
70 | } |
71 | /* extra precision counters */ | |
72 | for_each_possible_cpu(i) { | |
11ef38af DC |
73 | xs_xstrat_bytes += per_cpu_ptr(stats, i)->s.xs_xstrat_bytes; |
74 | xs_write_bytes += per_cpu_ptr(stats, i)->s.xs_write_bytes; | |
75 | xs_read_bytes += per_cpu_ptr(stats, i)->s.xs_read_bytes; | |
4e919af7 | 76 | defer_relog += per_cpu_ptr(stats, i)->s.defer_relog; |
bb230c12 BD |
77 | } |
78 | ||
78b0f58b | 79 | len += scnprintf(buf + len, PATH_MAX-len, "xpc %llu %llu %llu\n", |
bb230c12 | 80 | xs_xstrat_bytes, xs_write_bytes, xs_read_bytes); |
4e919af7 DW |
81 | len += scnprintf(buf + len, PATH_MAX-len, "defer_relog %llu\n", |
82 | defer_relog); | |
17bb60b7 | 83 | len += scnprintf(buf + len, PATH_MAX-len, "debug %u\n", |
bb230c12 BD |
84 | #if defined(DEBUG) |
85 | 1); | |
86 | #else | |
87 | 0); | |
88 | #endif | |
89 | ||
90 | return len; | |
91 | } | |
92 | ||
80529c45 | 93 | void xfs_stats_clearall(struct xfsstats __percpu *stats) |
bb230c12 BD |
94 | { |
95 | int c; | |
c8ce540d | 96 | uint32_t vn_active; |
bb230c12 BD |
97 | |
98 | xfs_notice(NULL, "Clearing xfsstats"); | |
99 | for_each_possible_cpu(c) { | |
100 | preempt_disable(); | |
101 | /* save vn_active, it's a universal truth! */ | |
11ef38af | 102 | vn_active = per_cpu_ptr(stats, c)->s.vn_active; |
80529c45 | 103 | memset(per_cpu_ptr(stats, c), 0, sizeof(*stats)); |
11ef38af | 104 | per_cpu_ptr(stats, c)->s.vn_active = vn_active; |
bb230c12 BD |
105 | preempt_enable(); |
106 | } | |
107 | } | |
108 | ||
5ef03dbd | 109 | #ifdef CONFIG_PROC_FS |
48776fd2 CH |
110 | /* legacy quota interfaces */ |
111 | #ifdef CONFIG_XFS_QUOTA | |
26ca3901 CM |
112 | |
113 | #define XFSSTAT_START_XQMSTAT xfsstats_offset(xs_qm_dqreclaims) | |
114 | #define XFSSTAT_END_XQMSTAT xfsstats_offset(xs_qm_dquot) | |
115 | ||
48776fd2 CH |
116 | static int xqm_proc_show(struct seq_file *m, void *v) |
117 | { | |
118 | /* maximum; incore; ratio free to inuse; freelist */ | |
119 | seq_printf(m, "%d\t%d\t%d\t%u\n", | |
80529c45 BD |
120 | 0, counter_val(xfsstats.xs_stats, XFSSTAT_END_XQMSTAT), |
121 | 0, counter_val(xfsstats.xs_stats, XFSSTAT_END_XQMSTAT + 1)); | |
48776fd2 CH |
122 | return 0; |
123 | } | |
124 | ||
48776fd2 CH |
125 | /* legacy quota stats interface no 2 */ |
126 | static int xqmstat_proc_show(struct seq_file *m, void *v) | |
127 | { | |
128 | int j; | |
129 | ||
92b40768 | 130 | seq_puts(m, "qm"); |
26ca3901 | 131 | for (j = XFSSTAT_START_XQMSTAT; j < XFSSTAT_END_XQMSTAT; j++) |
80529c45 | 132 | seq_printf(m, " %u", counter_val(xfsstats.xs_stats, j)); |
48776fd2 CH |
133 | seq_putc(m, '\n'); |
134 | return 0; | |
135 | } | |
48776fd2 CH |
136 | #endif /* CONFIG_XFS_QUOTA */ |
137 | ||
9f8868ff | 138 | int |
1da177e4 LT |
139 | xfs_init_procfs(void) |
140 | { | |
141 | if (!proc_mkdir("fs/xfs", NULL)) | |
9e92054e | 142 | return -ENOMEM; |
9f8868ff | 143 | |
32f0ea05 BD |
144 | if (!proc_symlink("fs/xfs/stat", NULL, |
145 | "/sys/fs/xfs/stats/stats")) | |
9e92054e | 146 | goto out; |
32f0ea05 | 147 | |
48776fd2 | 148 | #ifdef CONFIG_XFS_QUOTA |
3f3942ac | 149 | if (!proc_create_single("fs/xfs/xqmstat", 0, NULL, xqmstat_proc_show)) |
9e92054e | 150 | goto out; |
3f3942ac | 151 | if (!proc_create_single("fs/xfs/xqm", 0, NULL, xqm_proc_show)) |
9e92054e | 152 | goto out; |
48776fd2 | 153 | #endif |
9f8868ff CH |
154 | return 0; |
155 | ||
9e92054e ES |
156 | out: |
157 | remove_proc_subtree("fs/xfs", NULL); | |
9f8868ff | 158 | return -ENOMEM; |
1da177e4 LT |
159 | } |
160 | ||
161 | void | |
162 | xfs_cleanup_procfs(void) | |
163 | { | |
9e92054e | 164 | remove_proc_subtree("fs/xfs", NULL); |
1da177e4 | 165 | } |
985ef4dc | 166 | #endif /* CONFIG_PROC_FS */ |