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Define a macro to test if an object has pages in transit. Clarify 

some arithmetic, and nuke an unneeded prototype.

From Charles Hannum <mycroft@netbsd.org>.
This commit is contained in:
thorpej 1997-02-21 20:26:03 +00:00
parent 17b60fc6e9
commit dd8d0f1f00
1 changed files with 6 additions and 4 deletions
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10
sys/vm/vm_object.h
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@ -1,4 +1,4 @@
/* $NetBSD: vm_object.h,v 1.19 1997/02/18 13:39:35 mrg Exp $ */
/* $NetBSD: vm_object.h,v 1.20 1997/02/21 20:26:03 thorpej Exp $ */
/*
* Copyright (c) 1991, 1993
@ -160,6 +160,9 @@ vm_object_t kmem_object;
} \
} while (0)
#define vm_object_paging(object) \
((object)->paging_in_progress != 0)
#ifndef DIAGNOSTIC
#define vm_object_paging_begin(object) \
do { \
@ -176,13 +179,13 @@ vm_object_t kmem_object;
#define vm_object_paging_end(object) \
do { \
if (--(object)->paging_in_progress == 0) \
if (--((object)->paging_in_progress) == 0) \
vm_object_wakeup((object)); \
} while (0)
#define vm_object_paging_wait(object) \
do { \
while ((object)->paging_in_progress != 0) { \
while (vm_object_paging((object))) { \
vm_object_sleep((object), (object), FALSE, \
"vospgw"); \
vm_object_lock((object)); \
@ -222,6 +225,5 @@ void vm_object_setpager __P((vm_object_t,
vm_pager_t, vm_offset_t, boolean_t));
void vm_object_shadow __P((vm_object_t *,
vm_offset_t *, vm_size_t));
void vm_object_terminate __P((vm_object_t));
#endif
#endif /* _VM_OBJECT_ */