lib/libspl/include/sys/param.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _LIBSPL_SYS_PARAM_H
  28 #define _LIBSPL_SYS_PARAM_H
  29
  30 #include_next <sys/param.h>
  31 #include <unistd.h>
  32
  33 /*
  34  * File system parameters and macros.
  35  *
  36  * The file system is made out of blocks of at most MAXBSIZE units,
  37  * with smaller units (fragments) only in the last direct block.
  38  * MAXBSIZE primarily determines the size of buffers in the buffer
  39  * pool. It may be made larger without any effect on existing
  40  * file systems; however making it smaller make make some file
  41  * systems unmountable.
  42  *
  43  * Note that the blocked devices are assumed to have DEV_BSIZE
  44  * "sectors" and that fragments must be some multiple of this size.
  45  */
  46 #define MAXBSIZE        8192
  47 #define DEV_BSIZE       512
  48 #define DEV_BSHIFT      9               /* log2(DEV_BSIZE) */
  49
  50 #define MAXNAMELEN      256
  51 #define MAXOFFSET_T     LLONG_MAX
  52
  53 #define UID_NOBODY      60001           /* user ID no body */
  54 #define GID_NOBODY      UID_NOBODY
  55 #define UID_NOACCESS    60002           /* user ID no access */
  56
  57 #define MAXUID          UINT32_MAX      /* max user id */
  58 #define MAXPROJID       MAXUID          /* max project id */
  59
  60 #define PAGESIZE        (sysconf(_SC_PAGESIZE))
  61
  62 #endif