|
Packit |
6c4009 |
/* munlock -- undo the effects of prior mlock calls. Mach/Hurd version.
|
|
Packit |
6c4009 |
Copyright (C) 2001-2018 Free Software Foundation, Inc.
|
|
Packit |
6c4009 |
This file is part of the GNU C Library.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is free software; you can redistribute it and/or
|
|
Packit |
6c4009 |
modify it under the terms of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License as published by the Free Software Foundation; either
|
|
Packit |
6c4009 |
version 2.1 of the License, or (at your option) any later version.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is distributed in the hope that it will be useful,
|
|
Packit |
6c4009 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
6c4009 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit |
6c4009 |
Lesser General Public License for more details.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
You should have received a copy of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License along with the GNU C Library; if not, see
|
|
Packit |
6c4009 |
<http://www.gnu.org/licenses/>. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#include <sys/types.h>
|
|
Packit |
6c4009 |
#include <sys/mman.h>
|
|
Packit |
6c4009 |
#include <errno.h>
|
|
Packit |
6c4009 |
#include <hurd.h>
|
|
Packit |
6c4009 |
#include <mach/mach_host.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Undo the effects on these whole pages of any prior mlock calls. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
int
|
|
Packit |
6c4009 |
munlock (const void *addr, size_t len)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
mach_port_t host;
|
|
Packit |
6c4009 |
vm_address_t page;
|
|
Packit |
6c4009 |
error_t err;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
err = __get_privileged_ports (&host, NULL);
|
|
Packit |
6c4009 |
if (err)
|
|
Packit |
6c4009 |
host = __mach_host_self();
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
page = trunc_page ((vm_address_t) addr);
|
|
Packit |
6c4009 |
len = round_page ((vm_address_t) addr + len) - page;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
err = __vm_wire (host, __mach_task_self (), page, len, VM_PROT_NONE);
|
|
Packit |
6c4009 |
if (host != __mach_host_self())
|
|
Packit |
6c4009 |
__mach_port_deallocate (__mach_task_self (), host);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
return err ? __hurd_fail (err) : 0;
|
|
Packit |
6c4009 |
}
|