FreeBSD/Linux Kernel Cross Reference
sys/sys/nchstats.h

     /*
      * Copyright (c) 2003, 2004 The DragonFly Project.  All rights reserved.
      *
      * This code is derived from software contributed to The DragonFly Project
      * by Hiten Pandya <hmp@backplane.com>.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     *
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in
     *    the documentation and/or other materials provided with the
     *    distribution.
     * 3. Neither the name of The DragonFly Project nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific, prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
     * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
     * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $DragonFly: src/sys/sys/nchstats.h,v 1.3 2004/07/16 05:04:36 hmp Exp $
     */
    #ifndef _SYS_NCHSTATS_H_
    #define _SYS_NCHSTATS_H_
    
    /*
     * Statistics on the usefulness of namei caches.
     * (per-cpu)
     */
    struct  nchstats {
            unsigned long   ncs_goodhits;   /* hits that we can really use */
            unsigned long   ncs_neghits;    /* negative hits that we can use */
            unsigned long   ncs_badhits;    /* hits we must drop */
            unsigned long   ncs_falsehits;  /* hits with id mismatch */
            unsigned long   ncs_miss;       /* misses */
            unsigned long   ncs_longhits;   /* path lookup hits */
            unsigned long   ncs_longmiss;   /* path lookup misses */
            unsigned long   ncs_unused;     /* number of times we attempt it */
    };
    
    #endif /* _SYS_NCHSTATS_H_ */

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