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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
d9ef5a8c CL |
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 | * | |
d9ef5a8c CL |
9 | */ |
10 | ||
11 | #ifndef _NFS_IOSTAT | |
12 | #define _NFS_IOSTAT | |
13 | ||
d9ef5a8c CL |
14 | #include <linux/percpu.h> |
15 | #include <linux/cache.h> | |
34e8f928 | 16 | #include <linux/nfs_iostat.h> |
d9ef5a8c CL |
17 | |
18 | struct nfs_iostats { | |
19 | unsigned long long bytes[__NFSIOS_BYTESMAX]; | |
20 | unsigned long events[__NFSIOS_COUNTSMAX]; | |
21 | } ____cacheline_aligned; | |
22 | ||
2e96d286 | 23 | static inline void nfs_inc_server_stats(const struct nfs_server *server, |
34e8f928 | 24 | enum nfs_stat_eventcounters stat) |
d9ef5a8c | 25 | { |
fce22848 | 26 | this_cpu_inc(server->io_stats->events[stat]); |
d9ef5a8c CL |
27 | } |
28 | ||
2e96d286 | 29 | static inline void nfs_inc_stats(const struct inode *inode, |
34e8f928 | 30 | enum nfs_stat_eventcounters stat) |
006ea73e CL |
31 | { |
32 | nfs_inc_server_stats(NFS_SERVER(inode), stat); | |
33 | } | |
34 | ||
2e96d286 | 35 | static inline void nfs_add_server_stats(const struct nfs_server *server, |
34e8f928 | 36 | enum nfs_stat_bytecounters stat, |
dfe52c04 | 37 | long addend) |
d9ef5a8c | 38 | { |
fce22848 | 39 | this_cpu_add(server->io_stats->bytes[stat], addend); |
d9ef5a8c CL |
40 | } |
41 | ||
2e96d286 | 42 | static inline void nfs_add_stats(const struct inode *inode, |
34e8f928 | 43 | enum nfs_stat_bytecounters stat, |
dfe52c04 | 44 | long addend) |
006ea73e CL |
45 | { |
46 | nfs_add_server_stats(NFS_SERVER(inode), stat, addend); | |
47 | } | |
48 | ||
3b0ba54d SB |
49 | /* |
50 | * This specialized allocator has to be a macro for its allocations to be | |
51 | * accounted separately (to have a separate alloc_tag). | |
52 | */ | |
2c321f3f | 53 | #define nfs_alloc_iostats() alloc_percpu(struct nfs_iostats) |
d9ef5a8c | 54 | |
003cb608 | 55 | static inline void nfs_free_iostats(struct nfs_iostats __percpu *stats) |
d9ef5a8c | 56 | { |
01d0ae8b TM |
57 | if (stats != NULL) |
58 | free_percpu(stats); | |
d9ef5a8c CL |
59 | } |
60 | ||
34e8f928 | 61 | #endif /* _NFS_IOSTAT */ |