]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blame - fs/xfs/xfs_stats.h
xfs: check for race with xfs_reclaim_inode() in xfs_ifree_cluster()
[mirror_ubuntu-artful-kernel.git] / fs / xfs / xfs_stats.h
CommitLineData
1da177e4 1/*
7b718769
NS
2 * Copyright (c) 2000,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
1da177e4 4 *
7b718769
NS
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
1da177e4
LT
7 * published by the Free Software Foundation.
8 *
7b718769
NS
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.
1da177e4 13 *
7b718769
NS
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
1da177e4
LT
17 */
18#ifndef __XFS_STATS_H__
19#define __XFS_STATS_H__
20
1da177e4
LT
21
22#include <linux/percpu.h>
23
11ef38af
DC
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
1da177e4
LT
52/*
53 * XFS global statistics
54 */
11ef38af 55struct __xfsstats {
1da177e4 56# define XFSSTAT_END_EXTENT_ALLOC 4
c8ce540d
DW
57 uint32_t xs_allocx;
58 uint32_t xs_allocb;
59 uint32_t xs_freex;
60 uint32_t xs_freeb;
1da177e4 61# define XFSSTAT_END_ALLOC_BTREE (XFSSTAT_END_EXTENT_ALLOC+4)
c8ce540d
DW
62 uint32_t xs_abt_lookup;
63 uint32_t xs_abt_compare;
64 uint32_t xs_abt_insrec;
65 uint32_t xs_abt_delrec;
1da177e4 66# define XFSSTAT_END_BLOCK_MAPPING (XFSSTAT_END_ALLOC_BTREE+7)
c8ce540d
DW
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;
1da177e4 74# define XFSSTAT_END_BLOCK_MAP_BTREE (XFSSTAT_END_BLOCK_MAPPING+4)
c8ce540d
DW
75 uint32_t xs_bmbt_lookup;
76 uint32_t xs_bmbt_compare;
77 uint32_t xs_bmbt_insrec;
78 uint32_t xs_bmbt_delrec;
1da177e4 79# define XFSSTAT_END_DIRECTORY_OPS (XFSSTAT_END_BLOCK_MAP_BTREE+4)
c8ce540d
DW
80 uint32_t xs_dir_lookup;
81 uint32_t xs_dir_create;
82 uint32_t xs_dir_remove;
83 uint32_t xs_dir_getdents;
1da177e4 84# define XFSSTAT_END_TRANSACTIONS (XFSSTAT_END_DIRECTORY_OPS+3)
c8ce540d
DW
85 uint32_t xs_trans_sync;
86 uint32_t xs_trans_async;
87 uint32_t xs_trans_empty;
1da177e4 88# define XFSSTAT_END_INODE_OPS (XFSSTAT_END_TRANSACTIONS+7)
c8ce540d
DW
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;
1da177e4 96# define XFSSTAT_END_LOG_OPS (XFSSTAT_END_INODE_OPS+5)
c8ce540d
DW
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;
1da177e4 102# define XFSSTAT_END_TAIL_PUSHING (XFSSTAT_END_LOG_OPS+10)
c8ce540d
DW
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;
1da177e4 113# define XFSSTAT_END_WRITE_CONVERT (XFSSTAT_END_TAIL_PUSHING+2)
c8ce540d
DW
114 uint32_t xs_xstrat_quick;
115 uint32_t xs_xstrat_split;
1da177e4 116# define XFSSTAT_END_READ_WRITE_OPS (XFSSTAT_END_WRITE_CONVERT+2)
c8ce540d
DW
117 uint32_t xs_write_calls;
118 uint32_t xs_read_calls;
1da177e4 119# define XFSSTAT_END_ATTRIBUTE_OPS (XFSSTAT_END_READ_WRITE_OPS+4)
c8ce540d
DW
120 uint32_t xs_attr_get;
121 uint32_t xs_attr_set;
122 uint32_t xs_attr_remove;
123 uint32_t xs_attr_list;
1da177e4 124# define XFSSTAT_END_INODE_CLUSTER (XFSSTAT_END_ATTRIBUTE_OPS+3)
c8ce540d
DW
125 uint32_t xs_iflush_count;
126 uint32_t xs_icluster_flushcnt;
127 uint32_t xs_icluster_flushinode;
1da177e4 128# define XFSSTAT_END_VNODE_OPS (XFSSTAT_END_INODE_CLUSTER+8)
c8ce540d
DW
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 */
1da177e4 137#define XFSSTAT_END_BUF (XFSSTAT_END_VNODE_OPS+9)
c8ce540d
DW
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;
854929f0 147/* Version 2 btree counters */
11ef38af 148#define XFSSTAT_END_ABTB_V2 (XFSSTAT_END_BUF + __XBTS_MAX)
c8ce540d 149 uint32_t xs_abtb_2[__XBTS_MAX];
11ef38af 150#define XFSSTAT_END_ABTC_V2 (XFSSTAT_END_ABTB_V2 + __XBTS_MAX)
c8ce540d 151 uint32_t xs_abtc_2[__XBTS_MAX];
11ef38af 152#define XFSSTAT_END_BMBT_V2 (XFSSTAT_END_ABTC_V2 + __XBTS_MAX)
c8ce540d 153 uint32_t xs_bmbt_2[__XBTS_MAX];
11ef38af 154#define XFSSTAT_END_IBT_V2 (XFSSTAT_END_BMBT_V2 + __XBTS_MAX)
c8ce540d 155 uint32_t xs_ibt_2[__XBTS_MAX];
11ef38af 156#define XFSSTAT_END_FIBT_V2 (XFSSTAT_END_IBT_V2 + __XBTS_MAX)
c8ce540d 157 uint32_t xs_fibt_2[__XBTS_MAX];
11ef38af 158#define XFSSTAT_END_RMAP_V2 (XFSSTAT_END_FIBT_V2 + __XBTS_MAX)
c8ce540d 159 uint32_t xs_rmap_2[__XBTS_MAX];
11ef38af 160#define XFSSTAT_END_REFCOUNT (XFSSTAT_END_RMAP_V2 + __XBTS_MAX)
c8ce540d 161 uint32_t xs_refcbt_2[__XBTS_MAX];
46eeb521 162#define XFSSTAT_END_XQMSTAT (XFSSTAT_END_REFCOUNT + 6)
c8ce540d
DW
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;
48776fd2 169#define XFSSTAT_END_QM (XFSSTAT_END_XQMSTAT+2)
c8ce540d
DW
170 uint32_t xs_qm_dquot;
171 uint32_t xs_qm_dquot_unused;
1da177e4 172/* Extra precision counters */
c8ce540d
DW
173 uint64_t xs_xstrat_bytes;
174 uint64_t xs_write_bytes;
175 uint64_t xs_read_bytes;
1da177e4
LT
176};
177
11ef38af
DC
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) \
c8ce540d 189 (offsetof(struct __xfsstats, member) / (int)sizeof(uint32_t))
11ef38af
DC
190
191
80529c45
BD
192int xfs_stats_format(struct xfsstats __percpu *stats, char *buf);
193void xfs_stats_clearall(struct xfsstats __percpu *stats);
194extern struct xstats xfsstats;
1da177e4 195
ff6d6af2
BD
196#define XFS_STATS_INC(mp, v) \
197do { \
11ef38af
DC
198 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v++; \
199 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v++; \
ff6d6af2 200} while (0)
80529c45 201
ff6d6af2
BD
202#define XFS_STATS_DEC(mp, v) \
203do { \
11ef38af
DC
204 per_cpu_ptr(xfsstats.xs_stats, current_cpu())->s.v--; \
205 per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->s.v--; \
ff6d6af2 206} while (0)
80529c45 207
ff6d6af2
BD
208#define XFS_STATS_ADD(mp, v, inc) \
209do { \
11ef38af
DC
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); \
ff6d6af2
BD
230} while (0)
231
232#if defined(CONFIG_PROC_FS)
1da177e4 233
9f8868ff 234extern int xfs_init_procfs(void);
1da177e4
LT
235extern void xfs_cleanup_procfs(void);
236
237
238#else /* !CONFIG_PROC_FS */
239
9f8868ff
CH
240static inline int xfs_init_procfs(void)
241{
766b0925
CH
242 return 0;
243}
244
9f8868ff
CH
245static inline void xfs_cleanup_procfs(void)
246{
766b0925 247}
1da177e4
LT
248
249#endif /* !CONFIG_PROC_FS */
250
251#endif /* __XFS_STATS_H__ */