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 */
45