Initial revision

1 files changed, 46 insertions, 0 deletions

diff --git a/libdiskfs/dev-globals.c b/libdiskfs/dev-globals.c
new file mode 100644
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--- /dev/null
+++ b/libdiskfs/dev-globals.c
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+/* Standard device global variables
+
+   Copyright (C) 1995 Free Software Foundation, Inc.
+
+   Written by Miles Bader <miles@gnu.ai.mit.edu>
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   The GNU Hurd is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <diskfs.h>
+
+/* A mach device port for the device we're using.  */
+mach_port_t diskfs_device = MACH_PORT_NULL;
+
+/* The mach device name of DISKFS_DEVICE.  May be 0 if unknown.  */
+char *diskfs_device_name = 0;
+
+/* The first valid block of DISKFS_DEVICE, in units of
+   DISKFS_DEVICE_BLOCK_SIZE.  */
+off_t diskfs_device_start = 0;
+
+/* The usable size of DISKFS_DEVICE, in units of DISKFS_DEVICE_BLOCK_SIZE.  */
+off_t diskfs_device_size = 0;
+
+/* The unit of addressing for DISKFS_DEVICE.  */ 
+unsigned diskfs_device_block_size = 0;
+
+/* Some handy calculations based on DISKFS_DEVICE_BLOCK_SIZE.  */
+/* Log base 2 of DEVICE_BLOCK_SIZE, or 0 if it's not a power of two.  */
+unsigned diskfs_log2_device_block_size = 0;
+/* Log base 2 of the number of device blocks in a vm page, or 0 if it's not a
+   power of two.  */
+unsigned diskfs_log2_device_blocks_per_page = 0;