The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/fs/pseudofs/pseudofs_internal.h

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    1 /*-
    2  * Copyright (c) 2001 Dag-Erling Co´dan Sm°rgrav
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer
   10  *    in this position and unchanged.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  * 3. The name of the author may not be used to endorse or promote products
   15  *    derived from this software without specific prior written permission.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  *      $FreeBSD: releng/6.4/sys/fs/pseudofs/pseudofs_internal.h 170191 2007-06-01 20:56:18Z des $
   29  */
   30 
   31 #ifndef _PSEUDOFS_INTERNAL_H_INCLUDED
   32 #define _PSEUDOFS_INTERNAL_H_INCLUDED
   33 
   34 /*
   35  * Sysctl subtree
   36  */
   37 SYSCTL_DECL(_vfs_pfs);
   38 
   39 /*
   40  * Vnode data
   41  */
   42 struct pfs_vdata {
   43         struct pfs_node *pvd_pn;
   44         pid_t            pvd_pid;
   45         struct vnode    *pvd_vnode;
   46         struct pfs_vdata*pvd_prev, *pvd_next;
   47         int              pvd_dead:1;
   48 };
   49 
   50 /*
   51  * Vnode cache
   52  */
   53 void     pfs_vncache_load       (void);
   54 void     pfs_vncache_unload     (void);
   55 int      pfs_vncache_alloc      (struct mount *, struct vnode **,
   56                                  struct pfs_node *, pid_t pid);
   57 int      pfs_vncache_free       (struct vnode *);
   58 
   59 /*
   60  * File number bitmap
   61  */
   62 void     pfs_fileno_init        (struct pfs_info *);
   63 void     pfs_fileno_uninit      (struct pfs_info *);
   64 void     pfs_fileno_alloc       (struct pfs_node *);
   65 void     pfs_fileno_free        (struct pfs_node *);
   66 
   67 #endif

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