1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2000,2005 Silicon Graphics, Inc.
4 * All Rights Reserved.
5 */
6 #ifndef __XFS_STATS_H__
7 #define __XFS_STATS_H__
8
9
10 #include <linux/percpu.h>
11
12 /*
13 * The btree stats arrays have fixed offsets for the different stats. We
14 * store the base index in the btree cursor via XFS_STATS_CALC_INDEX() and
15 * that allows us to use fixed offsets into the stats array for each btree
16 * stat. These index offsets are defined in the order they will be emitted
17 * in the stats files, so it is possible to add new btree stat types by
18 * appending to the enum list below.
19 */
20 enum {
21 __XBTS_lookup = 0,
22 __XBTS_compare = 1,
23 __XBTS_insrec = 2,
24 __XBTS_delrec = 3,
25 __XBTS_newroot = 4,
26 __XBTS_killroot = 5,
27 __XBTS_increment = 6,
28 __XBTS_decrement = 7,
29 __XBTS_lshift = 8,
30 __XBTS_rshift = 9,
31 __XBTS_split = 10,
32 __XBTS_join = 11,
33 __XBTS_alloc = 12,
34 __XBTS_free = 13,
35 __XBTS_moves = 14,
36
37 __XBTS_MAX = 15,
38 };
39
40 /*
41 * XFS global statistics
42 */
43 struct __xfsstats {
44 uint32_t xs_allocx;
45 uint32_t xs_allocb;
46 uint32_t xs_freex;
47 uint32_t xs_freeb;
48 uint32_t xs_abt_lookup;
49 uint32_t xs_abt_compare;
50 uint32_t xs_abt_insrec;
51 uint32_t xs_abt_delrec;
52 uint32_t xs_blk_mapr;
53 uint32_t xs_blk_mapw;
54 uint32_t xs_blk_unmap;
55 uint32_t xs_add_exlist;
56 uint32_t xs_del_exlist;
57 uint32_t xs_look_exlist;
58 uint32_t xs_cmp_exlist;
59 uint32_t xs_bmbt_lookup;
60 uint32_t xs_bmbt_compare;
61 uint32_t xs_bmbt_insrec;
62 uint32_t xs_bmbt_delrec;
63 uint32_t xs_dir_lookup;
64 uint32_t xs_dir_create;
65 uint32_t xs_dir_remove;
66 uint32_t xs_dir_getdents;
67 uint32_t xs_trans_sync;
68 uint32_t xs_trans_async;
69 uint32_t xs_trans_empty;
70 uint32_t xs_ig_attempts;
71 uint32_t xs_ig_found;
72 uint32_t xs_ig_frecycle;
73 uint32_t xs_ig_missed;
74 uint32_t xs_ig_dup;
75 uint32_t xs_ig_reclaims;
76 uint32_t xs_ig_attrchg;
77 uint32_t xs_log_writes;
78 uint32_t xs_log_blocks;
79 uint32_t xs_log_noiclogs;
80 uint32_t xs_log_force;
81 uint32_t xs_log_force_sleep;
82 uint32_t xs_try_logspace;
83 uint32_t xs_sleep_logspace;
84 uint32_t xs_push_ail;
85 uint32_t xs_push_ail_success;
86 uint32_t xs_push_ail_pushbuf;
87 uint32_t xs_push_ail_pinned;
88 uint32_t xs_push_ail_locked;
89 uint32_t xs_push_ail_flushing;
90 uint32_t xs_push_ail_restarts;
91 uint32_t xs_push_ail_flush;
92 uint32_t xs_xstrat_quick;
93 uint32_t xs_xstrat_split;
94 uint32_t xs_write_calls;
95 uint32_t xs_read_calls;
96 uint32_t xs_attr_get;
97 uint32_t xs_attr_set;
98 uint32_t xs_attr_remove;
99 uint32_t xs_attr_list;
100 uint32_t xs_iflush_count;
101 uint32_t xs_icluster_flushcnt;
102 uint32_t xs_icluster_flushinode;
103 uint32_t vn_active; /* # vnodes not on free lists */
104 uint32_t vn_alloc; /* # times vn_alloc called */
105 uint32_t vn_get; /* # times vn_get called */
106 uint32_t vn_hold; /* # times vn_hold called */
107 uint32_t vn_rele; /* # times vn_rele called */
108 uint32_t vn_reclaim; /* # times vn_reclaim called */
109 uint32_t vn_remove; /* # times vn_remove called */
110 uint32_t vn_free; /* # times vn_free called */
111 uint32_t xb_get;
112 uint32_t xb_create;
113 uint32_t xb_get_locked;
114 uint32_t xb_get_locked_waited;
115 uint32_t xb_busy_locked;
116 uint32_t xb_miss_locked;
117 uint32_t xb_page_retries;
118 uint32_t xb_page_found;
119 uint32_t xb_get_read;
120 /* Version 2 btree counters */
121 uint32_t xs_abtb_2[__XBTS_MAX];
122 uint32_t xs_abtc_2[__XBTS_MAX];
123 uint32_t xs_bmbt_2[__XBTS_MAX];
124 uint32_t xs_ibt_2[__XBTS_MAX];
125 uint32_t xs_fibt_2[__XBTS_MAX];
126 uint32_t xs_rmap_2[__XBTS_MAX];
127 uint32_t xs_refcbt_2[__XBTS_MAX];
128 uint32_t xs_qm_dqreclaims;
129 uint32_t xs_qm_dqreclaim_misses;
130 uint32_t xs_qm_dquot_dups;
131 uint32_t xs_qm_dqcachemisses;
132 uint32_t xs_qm_dqcachehits;
133 uint32_t xs_qm_dqwants;
134 uint32_t xs_qm_dquot;
135 uint32_t xs_qm_dquot_unused;
136 /* Extra precision counters */
137 uint64_t xs_xstrat_bytes;
138 uint64_t xs_write_bytes;
139 uint64_t xs_read_bytes;
140 };
141
142 #define xfsstats_offset(f) (offsetof(struct __xfsstats, f)/sizeof(uint32_t))
143
144 struct xfsstats {
145 union {
146 struct __xfsstats s;
147 uint32_t a[xfsstats_offset(xs_qm_dquot)];
148 };
149 };
150
151 /*
152 * simple wrapper for getting the array index of s struct member offset
153 */
154 #define XFS_STATS_CALC_INDEX(member) \
155 (offsetof(struct __xfsstats, member) / (int)sizeof(uint32_t))
156
157
158 int xfs_stats_format(struct xfsstats __percpu *stats, char *buf);
159 void xfs_stats_clearall(struct xfsstats __percpu *stats);
160 extern struct xstats xfsstats;
161
162 #define XFS_STATS_INC(mp, v) \
163 do { \
164 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v++; \
165 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v++; \
166 } while (0)
167
168 #define XFS_STATS_DEC(mp, v) \
169 do { \
170 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v--; \
171 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v--; \
172 } while (0)
173
174 #define XFS_STATS_ADD(mp, v, inc) \
175 do { \
176 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v += (inc); \
177 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v += (inc); \
178 } while (0)
179
180 #define XFS_STATS_INC_OFF(mp, off) \
181 do { \
182 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off]++; \
183 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off]++; \
184 } while (0)
185
186 #define XFS_STATS_DEC_OFF(mp, off) \
187 do { \
188 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off]; \
189 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off]; \
190 } while (0)
191
192 #define XFS_STATS_ADD_OFF(mp, off, inc) \
193 do { \
194 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off] += (inc); \
195 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off] += (inc); \
196 } while (0)
197
198 #if defined(CONFIG_PROC_FS)
199
200 extern int xfs_init_procfs(void);
201 extern void xfs_cleanup_procfs(void);
202
203
204 #else /* !CONFIG_PROC_FS */
205
xfs_init_procfs(void)206 static inline int xfs_init_procfs(void)
207 {
208 return 0;
209 }
210
xfs_cleanup_procfs(void)211 static inline void xfs_cleanup_procfs(void)
212 {
213 }
214
215 #endif /* !CONFIG_PROC_FS */
216
217 #endif /* __XFS_STATS_H__ */
218
