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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/*
2 * Copyright (c) 2000,2005 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#ifndef __XFS_STATS_H__
19#define __XFS_STATS_H__
20
21
22#include <linux/percpu.h>
23
24/*
25 * The btree stats arrays have fixed offsets for the different stats. We
26 * store the base index in the btree cursor via XFS_STATS_CALC_INDEX() and
27 * that allows us to use fixed offsets into the stats array for each btree
28 * stat. These index offsets are defined in the order they will be emitted
29 * in the stats files, so it is possible to add new btree stat types by
30 * appending to the enum list below.
31 */
32enum {
33 __XBTS_lookup = 0,
34 __XBTS_compare = 1,
35 __XBTS_insrec = 2,
36 __XBTS_delrec = 3,
37 __XBTS_newroot = 4,
38 __XBTS_killroot = 5,
39 __XBTS_increment = 6,
40 __XBTS_decrement = 7,
41 __XBTS_lshift = 8,
42 __XBTS_rshift = 9,
43 __XBTS_split = 10,
44 __XBTS_join = 11,
45 __XBTS_alloc = 12,
46 __XBTS_free = 13,
47 __XBTS_moves = 14,
48
49 __XBTS_MAX = 15,
50};
51
52/*
53 * XFS global statistics
54 */
55struct __xfsstats {
56# define XFSSTAT_END_EXTENT_ALLOC 4
57 __uint32_t xs_allocx;
58 __uint32_t xs_allocb;
59 __uint32_t xs_freex;
60 __uint32_t xs_freeb;
61# define XFSSTAT_END_ALLOC_BTREE (XFSSTAT_END_EXTENT_ALLOC+4)
62 __uint32_t xs_abt_lookup;
63 __uint32_t xs_abt_compare;
64 __uint32_t xs_abt_insrec;
65 __uint32_t xs_abt_delrec;
66# define XFSSTAT_END_BLOCK_MAPPING (XFSSTAT_END_ALLOC_BTREE+7)
67 __uint32_t xs_blk_mapr;
68 __uint32_t xs_blk_mapw;
69 __uint32_t xs_blk_unmap;
70 __uint32_t xs_add_exlist;
71 __uint32_t xs_del_exlist;
72 __uint32_t xs_look_exlist;
73 __uint32_t xs_cmp_exlist;
74# define XFSSTAT_END_BLOCK_MAP_BTREE (XFSSTAT_END_BLOCK_MAPPING+4)
75 __uint32_t xs_bmbt_lookup;
76 __uint32_t xs_bmbt_compare;
77 __uint32_t xs_bmbt_insrec;
78 __uint32_t xs_bmbt_delrec;
79# define XFSSTAT_END_DIRECTORY_OPS (XFSSTAT_END_BLOCK_MAP_BTREE+4)
80 __uint32_t xs_dir_lookup;
81 __uint32_t xs_dir_create;
82 __uint32_t xs_dir_remove;
83 __uint32_t xs_dir_getdents;
84# define XFSSTAT_END_TRANSACTIONS (XFSSTAT_END_DIRECTORY_OPS+3)
85 __uint32_t xs_trans_sync;
86 __uint32_t xs_trans_async;
87 __uint32_t xs_trans_empty;
88# define XFSSTAT_END_INODE_OPS (XFSSTAT_END_TRANSACTIONS+7)
89 __uint32_t xs_ig_attempts;
90 __uint32_t xs_ig_found;
91 __uint32_t xs_ig_frecycle;
92 __uint32_t xs_ig_missed;
93 __uint32_t xs_ig_dup;
94 __uint32_t xs_ig_reclaims;
95 __uint32_t xs_ig_attrchg;
96# define XFSSTAT_END_LOG_OPS (XFSSTAT_END_INODE_OPS+5)
97 __uint32_t xs_log_writes;
98 __uint32_t xs_log_blocks;
99 __uint32_t xs_log_noiclogs;
100 __uint32_t xs_log_force;
101 __uint32_t xs_log_force_sleep;
102# define XFSSTAT_END_TAIL_PUSHING (XFSSTAT_END_LOG_OPS+10)
103 __uint32_t xs_try_logspace;
104 __uint32_t xs_sleep_logspace;
105 __uint32_t xs_push_ail;
106 __uint32_t xs_push_ail_success;
107 __uint32_t xs_push_ail_pushbuf;
108 __uint32_t xs_push_ail_pinned;
109 __uint32_t xs_push_ail_locked;
110 __uint32_t xs_push_ail_flushing;
111 __uint32_t xs_push_ail_restarts;
112 __uint32_t xs_push_ail_flush;
113# define XFSSTAT_END_WRITE_CONVERT (XFSSTAT_END_TAIL_PUSHING+2)
114 __uint32_t xs_xstrat_quick;
115 __uint32_t xs_xstrat_split;
116# define XFSSTAT_END_READ_WRITE_OPS (XFSSTAT_END_WRITE_CONVERT+2)
117 __uint32_t xs_write_calls;
118 __uint32_t xs_read_calls;
119# define XFSSTAT_END_ATTRIBUTE_OPS (XFSSTAT_END_READ_WRITE_OPS+4)
120 __uint32_t xs_attr_get;
121 __uint32_t xs_attr_set;
122 __uint32_t xs_attr_remove;
123 __uint32_t xs_attr_list;
124# define XFSSTAT_END_INODE_CLUSTER (XFSSTAT_END_ATTRIBUTE_OPS+3)
125 __uint32_t xs_iflush_count;
126 __uint32_t xs_icluster_flushcnt;
127 __uint32_t xs_icluster_flushinode;
128# define XFSSTAT_END_VNODE_OPS (XFSSTAT_END_INODE_CLUSTER+8)
129 __uint32_t vn_active; /* # vnodes not on free lists */
130 __uint32_t vn_alloc; /* # times vn_alloc called */
131 __uint32_t vn_get; /* # times vn_get called */
132 __uint32_t vn_hold; /* # times vn_hold called */
133 __uint32_t vn_rele; /* # times vn_rele called */
134 __uint32_t vn_reclaim; /* # times vn_reclaim called */
135 __uint32_t vn_remove; /* # times vn_remove called */
136 __uint32_t vn_free; /* # times vn_free called */
137#define XFSSTAT_END_BUF (XFSSTAT_END_VNODE_OPS+9)
138 __uint32_t xb_get;
139 __uint32_t xb_create;
140 __uint32_t xb_get_locked;
141 __uint32_t xb_get_locked_waited;
142 __uint32_t xb_busy_locked;
143 __uint32_t xb_miss_locked;
144 __uint32_t xb_page_retries;
145 __uint32_t xb_page_found;
146 __uint32_t xb_get_read;
147/* Version 2 btree counters */
148#define XFSSTAT_END_ABTB_V2 (XFSSTAT_END_BUF + __XBTS_MAX)
149 __uint32_t xs_abtb_2[__XBTS_MAX];
150#define XFSSTAT_END_ABTC_V2 (XFSSTAT_END_ABTB_V2 + __XBTS_MAX)
151 __uint32_t xs_abtc_2[__XBTS_MAX];
152#define XFSSTAT_END_BMBT_V2 (XFSSTAT_END_ABTC_V2 + __XBTS_MAX)
153 __uint32_t xs_bmbt_2[__XBTS_MAX];
154#define XFSSTAT_END_IBT_V2 (XFSSTAT_END_BMBT_V2 + __XBTS_MAX)
155 __uint32_t xs_ibt_2[__XBTS_MAX];
156#define XFSSTAT_END_FIBT_V2 (XFSSTAT_END_IBT_V2 + __XBTS_MAX)
157 __uint32_t xs_fibt_2[__XBTS_MAX];
158#define XFSSTAT_END_RMAP_V2 (XFSSTAT_END_FIBT_V2 + __XBTS_MAX)
159 __uint32_t xs_rmap_2[__XBTS_MAX];
160#define XFSSTAT_END_REFCOUNT (XFSSTAT_END_RMAP_V2 + __XBTS_MAX)
161 __uint32_t xs_refcbt_2[__XBTS_MAX];
162#define XFSSTAT_END_XQMSTAT (XFSSTAT_END_REFCOUNT + 6)
163 __uint32_t xs_qm_dqreclaims;
164 __uint32_t xs_qm_dqreclaim_misses;
165 __uint32_t xs_qm_dquot_dups;
166 __uint32_t xs_qm_dqcachemisses;
167 __uint32_t xs_qm_dqcachehits;
168 __uint32_t xs_qm_dqwants;
169#define XFSSTAT_END_QM (XFSSTAT_END_XQMSTAT+2)
170 __uint32_t xs_qm_dquot;
171 __uint32_t xs_qm_dquot_unused;
172/* Extra precision counters */
173 __uint64_t xs_xstrat_bytes;
174 __uint64_t xs_write_bytes;
175 __uint64_t xs_read_bytes;
176};
177
178struct xfsstats {
179 union {
180 struct __xfsstats s;
181 uint32_t a[XFSSTAT_END_XQMSTAT];
182 };
183};
184
185/*
186 * simple wrapper for getting the array index of s struct member offset
187 */
188#define XFS_STATS_CALC_INDEX(member) \
189 (offsetof(struct __xfsstats, member) / (int)sizeof(__uint32_t))
190
191
192int xfs_stats_format(struct xfsstats __percpu *stats, char *buf);
193void xfs_stats_clearall(struct xfsstats __percpu *stats);
194extern struct xstats xfsstats;
195
196#define XFS_STATS_INC(mp, v) \
197do { \
198 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v++; \
199 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v++; \
200} while (0)
201
202#define XFS_STATS_DEC(mp, v) \
203do { \
204 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v--; \
205 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v--; \
206} while (0)
207
208#define XFS_STATS_ADD(mp, v, inc) \
209do { \
210 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v += (inc); \
211 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v += (inc); \
212} while (0)
213
214#define XFS_STATS_INC_OFF(mp, off) \
215do { \
216 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off]++; \
217 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off]++; \
218} while (0)
219
220#define XFS_STATS_DEC_OFF(mp, off) \
221do { \
222 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off]; \
223 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off]; \
224} while (0)
225
226#define XFS_STATS_ADD_OFF(mp, off, inc) \
227do { \
228 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->a[off] += (inc); \
229 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->a[off] += (inc); \
230} while (0)
231
232#if defined(CONFIG_PROC_FS)
233
234extern int xfs_init_procfs(void);
235extern void xfs_cleanup_procfs(void);
236
237
238#else /* !CONFIG_PROC_FS */
239
240static inline int xfs_init_procfs(void)
241{
242 return 0;
243}
244
245static inline void xfs_cleanup_procfs(void)
246{
247}
248
249#endif /* !CONFIG_PROC_FS */
250
251#endif /* __XFS_STATS_H__ */