2 * linux/fs/nfs/iostat.h
4 * Declarations for NFS client per-mount statistics
6 * Copyright (C) 2005, 2006 Chuck Lever <cel@netapp.com>
13 #include <linux/percpu.h>
14 #include <linux/cache.h>
15 #include <linux/nfs_iostat.h>
18 unsigned long long bytes[__NFSIOS_BYTESMAX];
19 #ifdef CONFIG_NFS_FSCACHE
20 unsigned long long fscache[__NFSIOS_FSCACHEMAX];
22 unsigned long events[__NFSIOS_COUNTSMAX];
23 } ____cacheline_aligned;
25 static inline void nfs_inc_server_stats(const struct nfs_server *server,
26 enum nfs_stat_eventcounters stat)
28 this_cpu_inc(server->io_stats->events[stat]);
31 static inline void nfs_inc_stats(const struct inode *inode,
32 enum nfs_stat_eventcounters stat)
34 nfs_inc_server_stats(NFS_SERVER(inode), stat);
37 static inline void nfs_add_server_stats(const struct nfs_server *server,
38 enum nfs_stat_bytecounters stat,
41 this_cpu_add(server->io_stats->bytes[stat], addend);
44 static inline void nfs_add_stats(const struct inode *inode,
45 enum nfs_stat_bytecounters stat,
48 nfs_add_server_stats(NFS_SERVER(inode), stat, addend);
51 #ifdef CONFIG_NFS_FSCACHE
52 static inline void nfs_add_fscache_stats(struct inode *inode,
53 enum nfs_stat_fscachecounters stat,
56 this_cpu_add(NFS_SERVER(inode)->io_stats->fscache[stat], addend);
60 static inline struct nfs_iostats __percpu *nfs_alloc_iostats(void)
62 return alloc_percpu(struct nfs_iostats);
65 static inline void nfs_free_iostats(struct nfs_iostats __percpu *stats)
71 #endif /* _NFS_IOSTAT */