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diff --git a/devio/mem.h b/devio/mem.h
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-/* Some random handy memory ops that know about VM.
-
- Copyright (C) 1995 Free Software Foundation, Inc.
-
- Written by Miles Bader <miles@gnu.ai.mit.edu>
-
- This program 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.
-
- This program 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. */
-
-/* For bcopy &c. */
-#include <string.h>
-
-/* Makes sure that BUF, points to a buffer with AMOUNT bytes available.
- *BUF_LEN should be the current length of *BUF, and if this isn't enough to
- hold AMOUNT bytes, then more is allocated and the new buffer is returned
- in *BUF and *BUF_LEN. If a memory allocation error occurs, the error code
- is returned, otherwise 0. */
-error_t allocate(vm_address_t *buf, vm_size_t *buf_len, vm_size_t amount);
-
-/* Deallocates any pages entirely within the last EXCESS bytes of the BUF_LEN
- long buffer, BUF. */
-error_t deallocate_excess(vm_address_t buf, vm_size_t buf_len, vm_size_t excess);