1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Statistics for NFS server.
4 *
5 * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
6 */
7 #ifndef _NFSD_STATS_H
8 #define _NFSD_STATS_H
9
10 #include <uapi/linux/nfsd/stats.h>
11
12
13 struct nfsd_stats {
14 unsigned int rchits; /* repcache hits */
15 unsigned int rcmisses; /* repcache hits */
16 unsigned int rcnocache; /* uncached reqs */
17 unsigned int fh_stale; /* FH stale error */
18 unsigned int fh_lookup; /* dentry cached */
19 unsigned int fh_anon; /* anon file dentry returned */
20 unsigned int fh_nocache_dir; /* filehandle not found in dcache */
21 unsigned int fh_nocache_nondir; /* filehandle not found in dcache */
22 unsigned int io_read; /* bytes returned to read requests */
23 unsigned int io_write; /* bytes passed in write requests */
24 unsigned int th_cnt; /* number of available threads */
25 unsigned int th_usage[10]; /* number of ticks during which n perdeciles
26 * of available threads were in use */
27 unsigned int th_fullcnt; /* number of times last free thread was used */
28 unsigned int ra_size; /* size of ra cache */
29 unsigned int ra_depth[11]; /* number of times ra entry was found that deep
30 * in the cache (10percentiles). [10] = not found */
31 #ifdef CONFIG_NFSD_V4
32 unsigned int nfs4_opcount[LAST_NFS4_OP + 1]; /* count of individual nfsv4 operations */
33 #endif
34
35 };
36
37
38 extern struct nfsd_stats nfsdstats;
39 extern struct svc_stat nfsd_svcstats;
40
41 void nfsd_stat_init(void);
42 void nfsd_stat_shutdown(void);
43
44 #endif /* _NFSD_STATS_H */