1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Statistics for NFS server.
*
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
#ifndef _NFSD_STATS_H
#define _NFSD_STATS_H
#include <uapi/linux/nfsd/stats.h>
#include <linux/percpu_counter.h>
enum {
NFSD_STATS_RC_HITS, /* repcache hits */
NFSD_STATS_RC_MISSES, /* repcache misses */
NFSD_STATS_RC_NOCACHE, /* uncached reqs */
NFSD_STATS_FH_STALE, /* FH stale error */
NFSD_STATS_IO_READ, /* bytes returned to read requests */
NFSD_STATS_IO_WRITE, /* bytes passed in write requests */
#ifdef CONFIG_NFSD_V4
NFSD_STATS_FIRST_NFS4_OP, /* count of individual nfsv4 operations */
NFSD_STATS_LAST_NFS4_OP = NFSD_STATS_FIRST_NFS4_OP + LAST_NFS4_OP,
#define NFSD_STATS_NFS4_OP(op) (NFSD_STATS_FIRST_NFS4_OP + (op))
NFSD_STATS_WDELEG_GETATTR, /* count of getattr conflict with wdeleg */
#endif
NFSD_STATS_COUNTERS_NUM
};
struct nfsd_stats {
struct percpu_counter counter[NFSD_STATS_COUNTERS_NUM];
atomic_t th_cnt; /* number of available threads */
};
extern struct nfsd_stats nfsdstats;
extern struct svc_stat nfsd_svcstats;
int nfsd_percpu_counters_init(struct percpu_counter counters[], int num);
void nfsd_percpu_counters_reset(struct percpu_counter counters[], int num);
void nfsd_percpu_counters_destroy(struct percpu_counter counters[], int num);
int nfsd_stat_init(void);
void nfsd_stat_shutdown(void);
static inline void nfsd_stats_rc_hits_inc(void)
{
percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_RC_HITS]);
}
static inline void nfsd_stats_rc_misses_inc(void)
{
percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_RC_MISSES]);
}
static inline void nfsd_stats_rc_nocache_inc(void)
{
percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_RC_NOCACHE]);
}
static inline void nfsd_stats_fh_stale_inc(struct svc_export *exp)
{
percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_FH_STALE]);
if (exp)
percpu_counter_inc(&exp->ex_stats.counter[EXP_STATS_FH_STALE]);
}
static inline void nfsd_stats_io_read_add(struct svc_export *exp, s64 amount)
{
percpu_counter_add(&nfsdstats.counter[NFSD_STATS_IO_READ], amount);
if (exp)
percpu_counter_add(&exp->ex_stats.counter[EXP_STATS_IO_READ], amount);
}
static inline void nfsd_stats_io_write_add(struct svc_export *exp, s64 amount)
{
percpu_counter_add(&nfsdstats.counter[NFSD_STATS_IO_WRITE], amount);
if (exp)
percpu_counter_add(&exp->ex_stats.counter[EXP_STATS_IO_WRITE], amount);
}
static inline void nfsd_stats_payload_misses_inc(struct nfsd_net *nn)
{
percpu_counter_inc(&nn->counter[NFSD_NET_PAYLOAD_MISSES]);
}
static inline void nfsd_stats_drc_mem_usage_add(struct nfsd_net *nn, s64 amount)
{
percpu_counter_add(&nn->counter[NFSD_NET_DRC_MEM_USAGE], amount);
}
static inline void nfsd_stats_drc_mem_usage_sub(struct nfsd_net *nn, s64 amount)
{
percpu_counter_sub(&nn->counter[NFSD_NET_DRC_MEM_USAGE], amount);
}
#ifdef CONFIG_NFSD_V4
static inline void nfsd_stats_wdeleg_getattr_inc(void)
{
percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_WDELEG_GETATTR]);
}
#endif
#endif /* _NFSD_STATS_H */
|
