devfs_int.h

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    1 /*-
    2  * Copyright (c) 2005 Poul-Henning Kamp.  All rights reserved.
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions
    6  * are met:
    7  * 1. Redistributions of source code must retain the above copyright
    8  *    notice, this list of conditions and the following disclaimer.
    9  * 2. Neither the name of the University nor the names of its contributors
   10  *    may be used to endorse or promote products derived from this software
   11  *    without specific prior written permission.
   12  *
   13  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   23  * SUCH DAMAGE.
   24  *
   25  * $FreeBSD$
   26  */
   27 
   28 /*
   29  * This file documents a private interface and it SHALL only be used
   30  * by kern/kern_conf.c and fs/devfs/...
   31  */
   32 
   33 #ifndef _FS_DEVFS_DEVFS_INT_H_
   34 #define _FS_DEVFS_DEVFS_INT_H_
   35 
   36 #include <sys/queue.h>
   37 
   38 #ifdef _KERNEL
   39 
   40 struct devfs_dirent;
   41 
   42 struct cdev_priv {
   43         struct cdev             cdp_c;
   44         TAILQ_ENTRY(cdev_priv)  cdp_list;
   45 
   46         u_int                   cdp_inode;
   47 
   48         u_int                   cdp_flags;
   49 #define CDP_ACTIVE              (1 << 0)
   50 
   51         u_int                   cdp_inuse;
   52         u_int                   cdp_maxdirent;
   53         struct devfs_dirent     **cdp_dirents;
   54         struct devfs_dirent     *cdp_dirent0;
   55 };
   56 
   57 struct cdev *devfs_alloc(void);
   58 void devfs_free(struct cdev *);
   59 void devfs_create(struct cdev *dev);
   60 void devfs_destroy(struct cdev *dev);
   61 
   62 extern struct unrhdr *devfs_inos;
   63 extern struct mtx devmtx;
   64 extern struct mtx devfs_de_interlock;
   65 extern TAILQ_HEAD(cdev_priv_list, cdev_priv) cdevp_list;
   66 
   67 #endif /* _KERNEL */
   68 
   69 #endif /* !_FS_DEVFS_DEVFS_INT_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/fs/devfs/devfs_int.h

FreeBSD/Linux Kernel Cross Reference
sys/fs/devfs/devfs_int.h