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 | |
18 | struct nfs_iostats { |
19 | unsigned long long bytes[__NFSIOS_BYTESMAX]; |
20 | unsigned long events[__NFSIOS_COUNTSMAX]; |
21 | } ____cacheline_aligned; |
22 | |
23 | static inline void nfs_inc_server_stats(const struct nfs_server *server, |
24 | enum nfs_stat_eventcounters stat) |
25 | { |
26 | this_cpu_inc(server->io_stats->events[stat]); |
27 | } |
28 | |
29 | static inline void nfs_inc_stats(const struct inode *inode, |
30 | enum nfs_stat_eventcounters stat) |
31 | { |
32 | nfs_inc_server_stats(server: NFS_SERVER(inode), stat); |
33 | } |
34 | |
35 | static inline void nfs_add_server_stats(const struct nfs_server *server, |
36 | enum nfs_stat_bytecounters stat, |
37 | long addend) |
38 | { |
39 | this_cpu_add(server->io_stats->bytes[stat], addend); |
40 | } |
41 | |
42 | static inline void nfs_add_stats(const struct inode *inode, |
43 | enum nfs_stat_bytecounters stat, |
44 | long addend) |
45 | { |
46 | nfs_add_server_stats(server: NFS_SERVER(inode), stat, addend); |
47 | } |
48 | |
49 | static inline struct nfs_iostats __percpu *nfs_alloc_iostats(void) |
50 | { |
51 | return alloc_percpu(struct nfs_iostats); |
52 | } |
53 | |
54 | static inline void nfs_free_iostats(struct nfs_iostats __percpu *stats) |
55 | { |
56 | if (stats != NULL) |
57 | free_percpu(pdata: stats); |
58 | } |
59 | |
60 | #endif /* _NFS_IOSTAT */ |
61 | |