/*

   * 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 */