FreeBSD/Linux Kernel Cross Reference
sys/nfs/nfs_mountcommon.h

     /*-
      * Copyright (c) 2009 Rick Macklem, University of Guelph
      * All rights reserved.
      *
      * 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.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
     *
     * $FreeBSD: releng/11.2/sys/nfs/nfs_mountcommon.h 216931 2011-01-03 20:37:31Z rmacklem $
     */
    
    #ifndef _NFS_MOUNTCOMMON_H_
    #define _NFS_MOUNTCOMMON_H_
    
    /*
     * The common fields of the nfsmount structure for the two clients
     * used by the nlm. It includes a function pointer that provides
     * a mechanism for getting the client specific info for an nfs vnode.
     */
    typedef void    nfs_getinfofromvp_ftype(struct vnode *, uint8_t *, size_t *,
                        struct sockaddr_storage *, int *, off_t *,
                        struct timeval *);
    typedef int     nfs_vinvalbuf_ftype(struct vnode *, int, struct thread *, int);
    
    struct  nfsmount_common {
            struct mtx      nmcom_mtx;
            int     nmcom_flag;             /* Flags for soft/hard... */
            int     nmcom_state;            /* Internal state flags */
            struct  mount *nmcom_mountp;    /* Vfs structure for this filesystem */
            int     nmcom_timeo;            /* Init timer for NFSMNT_DUMBTIMR */
            int     nmcom_retry;            /* Max retries */
            char    nmcom_hostname[MNAMELEN];       /* server's name */
            nfs_getinfofromvp_ftype *nmcom_getinfo; /* Get info from nfsnode */
            nfs_vinvalbuf_ftype     *nmcom_vinvalbuf; /* Invalidate buffers */
    };
    
    #endif  /* _NFS_MOUNTCOMMON_H_ */

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