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 # define XFSSTAT_END_EXTENT_ALLOC	4
45 	uint32_t		xs_allocx;
46 	uint32_t		xs_allocb;
47 	uint32_t		xs_freex;
48 	uint32_t		xs_freeb;
49 # define XFSSTAT_END_ALLOC_BTREE	(XFSSTAT_END_EXTENT_ALLOC+4)
50 	uint32_t		xs_abt_lookup;
51 	uint32_t		xs_abt_compare;
52 	uint32_t		xs_abt_insrec;
53 	uint32_t		xs_abt_delrec;
54 # define XFSSTAT_END_BLOCK_MAPPING	(XFSSTAT_END_ALLOC_BTREE+7)
55 	uint32_t		xs_blk_mapr;
56 	uint32_t		xs_blk_mapw;
57 	uint32_t		xs_blk_unmap;
58 	uint32_t		xs_add_exlist;
59 	uint32_t		xs_del_exlist;
60 	uint32_t		xs_look_exlist;
61 	uint32_t		xs_cmp_exlist;
62 # define XFSSTAT_END_BLOCK_MAP_BTREE	(XFSSTAT_END_BLOCK_MAPPING+4)
63 	uint32_t		xs_bmbt_lookup;
64 	uint32_t		xs_bmbt_compare;
65 	uint32_t		xs_bmbt_insrec;
66 	uint32_t		xs_bmbt_delrec;
67 # define XFSSTAT_END_DIRECTORY_OPS	(XFSSTAT_END_BLOCK_MAP_BTREE+4)
68 	uint32_t		xs_dir_lookup;
69 	uint32_t		xs_dir_create;
70 	uint32_t		xs_dir_remove;
71 	uint32_t		xs_dir_getdents;
72 # define XFSSTAT_END_TRANSACTIONS	(XFSSTAT_END_DIRECTORY_OPS+3)
73 	uint32_t		xs_trans_sync;
74 	uint32_t		xs_trans_async;
75 	uint32_t		xs_trans_empty;
76 # define XFSSTAT_END_INODE_OPS		(XFSSTAT_END_TRANSACTIONS+7)
77 	uint32_t		xs_ig_attempts;
78 	uint32_t		xs_ig_found;
79 	uint32_t		xs_ig_frecycle;
80 	uint32_t		xs_ig_missed;
81 	uint32_t		xs_ig_dup;
82 	uint32_t		xs_ig_reclaims;
83 	uint32_t		xs_ig_attrchg;
84 # define XFSSTAT_END_LOG_OPS		(XFSSTAT_END_INODE_OPS+5)
85 	uint32_t		xs_log_writes;
86 	uint32_t		xs_log_blocks;
87 	uint32_t		xs_log_noiclogs;
88 	uint32_t		xs_log_force;
89 	uint32_t		xs_log_force_sleep;
90 # define XFSSTAT_END_TAIL_PUSHING	(XFSSTAT_END_LOG_OPS+10)
91 	uint32_t		xs_try_logspace;
92 	uint32_t		xs_sleep_logspace;
93 	uint32_t		xs_push_ail;
94 	uint32_t		xs_push_ail_success;
95 	uint32_t		xs_push_ail_pushbuf;
96 	uint32_t		xs_push_ail_pinned;
97 	uint32_t		xs_push_ail_locked;
98 	uint32_t		xs_push_ail_flushing;
99 	uint32_t		xs_push_ail_restarts;
100 	uint32_t		xs_push_ail_flush;
101 # define XFSSTAT_END_WRITE_CONVERT	(XFSSTAT_END_TAIL_PUSHING+2)
102 	uint32_t		xs_xstrat_quick;
103 	uint32_t		xs_xstrat_split;
104 # define XFSSTAT_END_READ_WRITE_OPS	(XFSSTAT_END_WRITE_CONVERT+2)
105 	uint32_t		xs_write_calls;
106 	uint32_t		xs_read_calls;
107 # define XFSSTAT_END_ATTRIBUTE_OPS	(XFSSTAT_END_READ_WRITE_OPS+4)
108 	uint32_t		xs_attr_get;
109 	uint32_t		xs_attr_set;
110 	uint32_t		xs_attr_remove;
111 	uint32_t		xs_attr_list;
112 # define XFSSTAT_END_INODE_CLUSTER	(XFSSTAT_END_ATTRIBUTE_OPS+3)
113 	uint32_t		xs_iflush_count;
114 	uint32_t		xs_icluster_flushcnt;
115 	uint32_t		xs_icluster_flushinode;
116 # define XFSSTAT_END_VNODE_OPS		(XFSSTAT_END_INODE_CLUSTER+8)
117 	uint32_t		vn_active;	/* # vnodes not on free lists */
118 	uint32_t		vn_alloc;	/* # times vn_alloc called */
119 	uint32_t		vn_get;		/* # times vn_get called */
120 	uint32_t		vn_hold;	/* # times vn_hold called */
121 	uint32_t		vn_rele;	/* # times vn_rele called */
122 	uint32_t		vn_reclaim;	/* # times vn_reclaim called */
123 	uint32_t		vn_remove;	/* # times vn_remove called */
124 	uint32_t		vn_free;	/* # times vn_free called */
125 #define XFSSTAT_END_BUF			(XFSSTAT_END_VNODE_OPS+9)
126 	uint32_t		xb_get;
127 	uint32_t		xb_create;
128 	uint32_t		xb_get_locked;
129 	uint32_t		xb_get_locked_waited;
130 	uint32_t		xb_busy_locked;
131 	uint32_t		xb_miss_locked;
132 	uint32_t		xb_page_retries;
133 	uint32_t		xb_page_found;
134 	uint32_t		xb_get_read;
135 /* Version 2 btree counters */
136 #define XFSSTAT_END_ABTB_V2		(XFSSTAT_END_BUF + __XBTS_MAX)
137 	uint32_t		xs_abtb_2[__XBTS_MAX];
138 #define XFSSTAT_END_ABTC_V2		(XFSSTAT_END_ABTB_V2 + __XBTS_MAX)
139 	uint32_t		xs_abtc_2[__XBTS_MAX];
140 #define XFSSTAT_END_BMBT_V2		(XFSSTAT_END_ABTC_V2 + __XBTS_MAX)
141 	uint32_t		xs_bmbt_2[__XBTS_MAX];
142 #define XFSSTAT_END_IBT_V2		(XFSSTAT_END_BMBT_V2 + __XBTS_MAX)
143 	uint32_t		xs_ibt_2[__XBTS_MAX];
144 #define XFSSTAT_END_FIBT_V2		(XFSSTAT_END_IBT_V2 + __XBTS_MAX)
145 	uint32_t		xs_fibt_2[__XBTS_MAX];
146 #define XFSSTAT_END_RMAP_V2		(XFSSTAT_END_FIBT_V2 + __XBTS_MAX)
147 	uint32_t		xs_rmap_2[__XBTS_MAX];
148 #define XFSSTAT_END_REFCOUNT		(XFSSTAT_END_RMAP_V2 + __XBTS_MAX)
149 	uint32_t		xs_refcbt_2[__XBTS_MAX];
150 #define XFSSTAT_END_XQMSTAT		(XFSSTAT_END_REFCOUNT + 6)
151 	uint32_t		xs_qm_dqreclaims;
152 	uint32_t		xs_qm_dqreclaim_misses;
153 	uint32_t		xs_qm_dquot_dups;
154 	uint32_t		xs_qm_dqcachemisses;
155 	uint32_t		xs_qm_dqcachehits;
156 	uint32_t		xs_qm_dqwants;
157 #define XFSSTAT_END_QM			(XFSSTAT_END_XQMSTAT+2)
158 	uint32_t		xs_qm_dquot;
159 	uint32_t		xs_qm_dquot_unused;
160 /* Extra precision counters */
161 	uint64_t		xs_xstrat_bytes;
162 	uint64_t		xs_write_bytes;
163 	uint64_t		xs_read_bytes;
164 };
165 
166 struct xfsstats {
167 	union {
168 		struct __xfsstats	s;
169 		uint32_t		a[XFSSTAT_END_XQMSTAT];
170 	};
171 };
172 
173 /*
174  * simple wrapper for getting the array index of s struct member offset
175  */
176 #define XFS_STATS_CALC_INDEX(member)	\
177 	(offsetof(struct __xfsstats, member) / (int)sizeof(uint32_t))
178 
179 
180 int xfs_stats_format(struct xfsstats __percpu *stats, char *buf);
181 void xfs_stats_clearall(struct xfsstats __percpu *stats);
182 extern struct xstats xfsstats;
183 
184 #define XFS_STATS_INC(mp, v)					\
185 do {								\
186 	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v++;	\
187 	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v++;	\
188 } while (0)
189 
190 #define XFS_STATS_DEC(mp, v)					\
191 do {								\
192 	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v--;	\
193 	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v--;	\
194 } while (0)
195 
196 #define XFS_STATS_ADD(mp, v, inc)					\
197 do {									\
198 	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v += (inc);	\
199 	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v += (inc);	\
200 } while (0)
201 
202 #define XFS_STATS_INC_OFF(mp, off)				\
203 do {								\
204 	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off]++;	\
205 	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off]++;	\
206 } while (0)
207 
208 #define XFS_STATS_DEC_OFF(mp, off)					\
209 do {								\
210 	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off];	\
211 	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off];	\
212 } while (0)
213 
214 #define XFS_STATS_ADD_OFF(mp, off, inc)					\
215 do {									\
216 	per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off] += (inc);	\
217 	per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off] += (inc);	\
218 } while (0)
219 
220 #if defined(CONFIG_PROC_FS)
221 
222 extern int xfs_init_procfs(void);
223 extern void xfs_cleanup_procfs(void);
224 
225 
226 #else	/* !CONFIG_PROC_FS */
227 
xfs_init_procfs(void)228 static inline int xfs_init_procfs(void)
229 {
230 	return 0;
231 }
232 
xfs_cleanup_procfs(void)233 static inline void xfs_cleanup_procfs(void)
234 {
235 }
236 
237 #endif	/* !CONFIG_PROC_FS */
238 
239 #endif /* __XFS_STATS_H__ */
240