fs/nfsd/stats.h

   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 */