sys/vfs/hammer2/hammer2_mount.h

   1 /*
   2  * Copyright (c) 2011-2014 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@backplane.com>
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  */
  34
  35 #ifndef _VFS_HAMMER2_MOUNT_H_
  36 #define _VFS_HAMMER2_MOUNT_H_
  37
  38 /*
  39  * This structure is passed from userland to the kernel during the mount
  40  * system call.
  41  *
  42  * The volume name is formatted as '/dev/ad0s1a@LABEL', where the label is
  43  * the mount point under the super-root.
  44  */
  45 struct hammer2_mount_info {
  46         const char      *volume;
  47         int             hflags;         /* extended hammer2 mount flags */
  48         int             cluster_fd;     /* cluster management pipe/socket */
  49         char            reserved1[112];
  50 };
  51
  52 #define HMNT2_NOAUTOSNAP        0x00000001
  53 #define HMNT2_LOCAL             0x00000002
  54
  55 #define HMNT2_USERFLAGS         (HMNT2_NOAUTOSNAP | HMNT2_LOCAL)
  56 #define HMNT2_DEVFLAGS          (HMNT2_LOCAL)
  57
  58 #endif