diff options
Diffstat (limited to 'vm/vm_object.h')
| -rw-r--r-- | vm/vm_object.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/vm/vm_object.h b/vm/vm_object.h index adeff657..95798790 100644 --- a/vm/vm_object.h +++ b/vm/vm_object.h @@ -72,7 +72,7 @@ struct vm_object { */ int ref_count; /* Number of references */ - int resident_page_count; + unsigned long resident_page_count; /* number of resident pages */ struct vm_object *copy; /* Object that should receive @@ -169,6 +169,7 @@ vm_object_t kernel_object; /* the single kernel object */ extern void vm_object_bootstrap(void); extern void vm_object_init(void); +extern void vm_object_collect(vm_object_t); extern void vm_object_terminate(vm_object_t); extern vm_object_t vm_object_allocate(vm_size_t); extern void vm_object_reference(vm_object_t); @@ -280,6 +281,10 @@ extern void vm_object_pager_wakeup(ipc_port_t pager); * Routines implemented as macros */ +#define vm_object_collectable(object) \ + (((object)->ref_count == 0) \ + && ((object)->resident_page_count == 0)) + #define vm_object_paging_begin(object) \ ((object)->paging_in_progress++) |