1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/* Completion of memory_object_change_attributes
Copyright (C) 1994 Free Software Foundation
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. */
#include "priv.h"
#include <stdio.h>
/* The kernel calls this (as described in <mach/memory_object.defs>)
when a memory_object_change_attributes call has completed. Read this
in combination with pager-attr.c. */
kern_return_t
_pager_seqnos_memory_object_change_completed (mach_port_t obj,
mach_port_seqno_t seq,
boolean_t maycache,
memory_object_copy_strategy_t strat)
{
struct pager *p;
struct attribute_request *ar;
if (!(p = ports_check_port_type (obj, pager_port_type)))
{
printf ("Bad change completed\n");
return EOPNOTSUPP;
}
mutex_lock (&p->interlock);
_pager_wait_for_seqno (p, seq);
for (ar = p->attribute_requests; ar; ar = ar->next)
if (ar->may_cache == maycache && ar->copy_strategy == strat
&& !--ar->attrs_pending)
break;
if (ar)
condition_broadcast (&p->wakeup);
_pager_release_seqno (p, seq);
mutex_unlock (&p->interlock);
ports_done_with_port (p);
return 0;
}
|
