/*
* linux/include/linux/nfsd/stats.h
*
* Statistics for NFS server.
*
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
#ifndef LINUX_NFSD_STATS_H
#define LINUX_NFSD_STATS_H
#include <linux/nfs4.h>
/* thread usage wraps very million seconds (approx one fortnight) */
#define NFSD_USAGE_WRAP (HZ*1000000)
#ifdef __KERNEL__
struct nfsd_stats {
unsigned int rchits; /* repcache hits */
unsigned int rcmisses; /* repcache hits */
unsigned int rcnocache; /* uncached reqs */
unsigned int fh_stale; /* FH stale error */
unsigned int fh_lookup; /* dentry cached */
unsigned int fh_anon; /* anon file dentry returned */
unsigned int fh_nocache_dir; /* filehandle not found in dcache */
unsigned int fh_nocache_nondir; /* filehandle not found in dcache */
unsigned int io_read; /* bytes returned to read requests */
unsigned int io_write; /* bytes passed in write requests */
unsigned int th_cnt; /* number of available threads */
unsigned int th_usage[10]; /* number of ticks during which n perdeciles
* of available threads were in use */
unsigned int th_fullcnt; /* number of times last free thread was used */
unsigned int ra_size; /* size of ra cache */
unsigned int ra_depth[11]; /* number of times ra entry was found that deep
* in the cache (10percentiles). [10] = not found */
#ifdef CONFIG_NFSD_V4
unsigned int nfs4_opcount[LAST_NFS4_OP + 1]; /* count of individual nfsv4 operations */
#endif
};
extern struct nfsd_stats nfsdstats;
extern struct svc_stat nfsd_svcstats;
void nfsd_stat_init(void);
void nfsd_stat_shutdown(void);
#endif /* __KERNEL__ */
#endif /* LINUX_NFSD_STATS_H */
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