projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d9ef5a8c CL |
1 | /* |
| 2 | * linux/fs/nfs/iostat.h | |
| 3 | * | |
| 4 | * Declarations for NFS client per-mount statistics | |
| 5 | * | |
| 6 | * Copyright (C) 2005, 2006 Chuck Lever <[email protected]> | |
| 7 | * | |
| d9ef5a8c CL |
8 | */ |
| 9 | ||
| 10 | #ifndef _NFS_IOSTAT | |
| 11 | #define _NFS_IOSTAT | |
| 12 | ||
| d9ef5a8c CL |
13 | #include <linux/percpu.h> |
| 14 | #include <linux/cache.h> | |
| 34e8f928 | 15 | #include <linux/nfs_iostat.h> |
| d9ef5a8c CL |
16 | |
| 17 | struct nfs_iostats { | |
| 18 | unsigned long long bytes[__NFSIOS_BYTESMAX]; | |
| 6a51091d DH |
19 | #ifdef CONFIG_NFS_FSCACHE |
| 20 | unsigned long long fscache[__NFSIOS_FSCACHEMAX]; | |
| 21 | #endif | |
| d9ef5a8c CL |
22 | unsigned long events[__NFSIOS_COUNTSMAX]; |
| 23 | } ____cacheline_aligned; | |
| 24 | ||
| 2e96d286 | 25 | static inline void nfs_inc_server_stats(const struct nfs_server *server, |
| 34e8f928 | 26 | enum nfs_stat_eventcounters stat) |
| d9ef5a8c | 27 | { |
| fce22848 | 28 | this_cpu_inc(server->io_stats->events[stat]); |
| d9ef5a8c CL |
29 | } |
| 30 | ||
| 2e96d286 | 31 | static inline void nfs_inc_stats(const struct inode *inode, |
| 34e8f928 | 32 | enum nfs_stat_eventcounters stat) |
| 006ea73e CL |
33 | { |
| 34 | nfs_inc_server_stats(NFS_SERVER(inode), stat); | |
| 35 | } | |
| 36 | ||
| 2e96d286 | 37 | static inline void nfs_add_server_stats(const struct nfs_server *server, |
| 34e8f928 | 38 | enum nfs_stat_bytecounters stat, |
| dfe52c04 | 39 | long addend) |
| d9ef5a8c | 40 | { |
| fce22848 | 41 | this_cpu_add(server->io_stats->bytes[stat], addend); |
| d9ef5a8c CL |
42 | } |
| 43 | ||
| 2e96d286 | 44 | static inline void nfs_add_stats(const struct inode *inode, |
| 34e8f928 | 45 | enum nfs_stat_bytecounters stat, |
| dfe52c04 | 46 | long addend) |
| 006ea73e CL |
47 | { |
| 48 | nfs_add_server_stats(NFS_SERVER(inode), stat, addend); | |
| 49 | } | |
| 50 | ||
| 6a51091d DH |
51 | #ifdef CONFIG_NFS_FSCACHE |
| 52 | static inline void nfs_add_fscache_stats(struct inode *inode, | |
| 53 | enum nfs_stat_fscachecounters stat, | |
| dfe52c04 | 54 | long addend) |
| 6a51091d | 55 | { |
| fce22848 | 56 | this_cpu_add(NFS_SERVER(inode)->io_stats->fscache[stat], addend); |
| 6a51091d DH |
57 | } |
| 58 | #endif | |
| 59 | ||
| 003cb608 | 60 | static inline struct nfs_iostats __percpu *nfs_alloc_iostats(void) |
| d9ef5a8c CL |
61 | { |
| 62 | return alloc_percpu(struct nfs_iostats); | |
| 63 | } | |
| 64 | ||
| 003cb608 | 65 | static inline void nfs_free_iostats(struct nfs_iostats __percpu *stats) |
| d9ef5a8c | 66 | { |
| 01d0ae8b TM |
67 | if (stats != NULL) |
| 68 | free_percpu(stats); | |
| d9ef5a8c CL |
69 | } |
| 70 | ||
| 34e8f928 | 71 | #endif /* _NFS_IOSTAT */ |