1 /* SPDX-License-Identifier: GPL-2.0 */
3 * linux/fs/nfs/iostat.h
5 * Declarations for NFS client per-mount statistics
7 * Copyright (C) 2005, 2006 Chuck Lever <cel@netapp.com>
14 #include <linux/percpu.h>
15 #include <linux/cache.h>
16 #include <linux/nfs_iostat.h>
19 unsigned long long bytes[__NFSIOS_BYTESMAX];
20 #ifdef CONFIG_NFS_FSCACHE
21 unsigned long long fscache[__NFSIOS_FSCACHEMAX];
23 unsigned long events[__NFSIOS_COUNTSMAX];
24 } ____cacheline_aligned;
26 static inline void nfs_inc_server_stats(const struct nfs_server *server,
27 enum nfs_stat_eventcounters stat)
29 this_cpu_inc(server->io_stats->events[stat]);
32 static inline void nfs_inc_stats(const struct inode *inode,
33 enum nfs_stat_eventcounters stat)
35 nfs_inc_server_stats(NFS_SERVER(inode), stat);
38 static inline void nfs_add_server_stats(const struct nfs_server *server,
39 enum nfs_stat_bytecounters stat,
42 this_cpu_add(server->io_stats->bytes[stat], addend);
45 static inline void nfs_add_stats(const struct inode *inode,
46 enum nfs_stat_bytecounters stat,
49 nfs_add_server_stats(NFS_SERVER(inode), stat, addend);
52 #ifdef CONFIG_NFS_FSCACHE
53 static inline void nfs_add_fscache_stats(struct inode *inode,
54 enum nfs_stat_fscachecounters stat,
57 this_cpu_add(NFS_SERVER(inode)->io_stats->fscache[stat], addend);
59 static inline void nfs_inc_fscache_stats(struct inode *inode,
60 enum nfs_stat_fscachecounters stat)
62 this_cpu_inc(NFS_SERVER(inode)->io_stats->fscache[stat]);
66 static inline struct nfs_iostats __percpu *nfs_alloc_iostats(void)
68 return alloc_percpu(struct nfs_iostats);
71 static inline void nfs_free_iostats(struct nfs_iostats __percpu *stats)
77 #endif /* _NFS_IOSTAT */