1/*
 2 *  linux/fs/nfs/iostat.h
 3 *
 4 *  Declarations for NFS client per-mount statistics
 5 *
 6 *  Copyright (C) 2005, 2006 Chuck Lever <cel@netapp.com>
 7 *
 8 */
 9
10#ifndef _NFS_IOSTAT
11#define _NFS_IOSTAT
12
13#include <linux/percpu.h>
14#include <linux/cache.h>
15#include <linux/nfs_iostat.h>
16
17struct nfs_iostats {
18	unsigned long long	bytes[__NFSIOS_BYTESMAX];
19#ifdef CONFIG_NFS_FSCACHE
20	unsigned long long	fscache[__NFSIOS_FSCACHEMAX];
21#endif
22	unsigned long		events[__NFSIOS_COUNTSMAX];
23} ____cacheline_aligned;
24
25static inline void nfs_inc_server_stats(const struct nfs_server *server,
26					enum nfs_stat_eventcounters stat)
27{
28	this_cpu_inc(server->io_stats->events[stat]);
29}
30
31static inline void nfs_inc_stats(const struct inode *inode,
32				 enum nfs_stat_eventcounters stat)
33{
34	nfs_inc_server_stats(NFS_SERVER(inode), stat);
35}
36
37static inline void nfs_add_server_stats(const struct nfs_server *server,
38					enum nfs_stat_bytecounters stat,
39					long addend)
40{
41	this_cpu_add(server->io_stats->bytes[stat], addend);
42}
43
44static inline void nfs_add_stats(const struct inode *inode,
45				 enum nfs_stat_bytecounters stat,
46				 long addend)
47{
48	nfs_add_server_stats(NFS_SERVER(inode), stat, addend);
49}
50
51#ifdef CONFIG_NFS_FSCACHE
52static inline void nfs_add_fscache_stats(struct inode *inode,
53					 enum nfs_stat_fscachecounters stat,
54					 long addend)
55{
56	this_cpu_add(NFS_SERVER(inode)->io_stats->fscache[stat], addend);
57}
58static inline void nfs_inc_fscache_stats(struct inode *inode,
59					 enum nfs_stat_fscachecounters stat)
60{
61	this_cpu_inc(NFS_SERVER(inode)->io_stats->fscache[stat]);
62}
63#endif
64
65static inline struct nfs_iostats __percpu *nfs_alloc_iostats(void)
66{
67	return alloc_percpu(struct nfs_iostats);
68}
69
70static inline void nfs_free_iostats(struct nfs_iostats __percpu *stats)
71{
72	if (stats != NULL)
73		free_percpu(stats);
74}
75
76#endif /* _NFS_IOSTAT */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 *  linux/fs/nfs/iostat.h
 4 *
 5 *  Declarations for NFS client per-mount statistics
 6 *
 7 *  Copyright (C) 2005, 2006 Chuck Lever <cel@netapp.com>
 8 *
 9 */
10
11#ifndef _NFS_IOSTAT
12#define _NFS_IOSTAT
13
14#include <linux/percpu.h>
15#include <linux/cache.h>
16#include <linux/nfs_iostat.h>
17
18struct nfs_iostats {
19	unsigned long long	bytes[__NFSIOS_BYTESMAX];
20#ifdef CONFIG_NFS_FSCACHE
21	unsigned long long	fscache[__NFSIOS_FSCACHEMAX];
22#endif
23	unsigned long		events[__NFSIOS_COUNTSMAX];
24} ____cacheline_aligned;
25
26static inline void nfs_inc_server_stats(const struct nfs_server *server,
27					enum nfs_stat_eventcounters stat)
28{
29	this_cpu_inc(server->io_stats->events[stat]);
30}
31
32static inline void nfs_inc_stats(const struct inode *inode,
33				 enum nfs_stat_eventcounters stat)
34{
35	nfs_inc_server_stats(NFS_SERVER(inode), stat);
36}
37
38static inline void nfs_add_server_stats(const struct nfs_server *server,
39					enum nfs_stat_bytecounters stat,
40					long addend)
41{
42	this_cpu_add(server->io_stats->bytes[stat], addend);
43}
44
45static inline void nfs_add_stats(const struct inode *inode,
46				 enum nfs_stat_bytecounters stat,
47				 long addend)
48{
49	nfs_add_server_stats(NFS_SERVER(inode), stat, addend);
50}
51
52#ifdef CONFIG_NFS_FSCACHE
53static inline void nfs_add_fscache_stats(struct inode *inode,
54					 enum nfs_stat_fscachecounters stat,
55					 long addend)
56{
57	this_cpu_add(NFS_SERVER(inode)->io_stats->fscache[stat], addend);
58}
59static inline void nfs_inc_fscache_stats(struct inode *inode,
60					 enum nfs_stat_fscachecounters stat)
61{
62	this_cpu_inc(NFS_SERVER(inode)->io_stats->fscache[stat]);
63}
64#endif
65
66static inline struct nfs_iostats __percpu *nfs_alloc_iostats(void)
67{
68	return alloc_percpu(struct nfs_iostats);
69}
70
71static inline void nfs_free_iostats(struct nfs_iostats __percpu *stats)
72{
73	if (stats != NULL)
74		free_percpu(stats);
75}
76
77#endif /* _NFS_IOSTAT */