diff options
Diffstat (limited to 'sys/vm/vm_object.h')
| -rw-r--r-- | sys/vm/vm_object.h | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/sys/vm/vm_object.h b/sys/vm/vm_object.h index 71bdd76..14a758b 100644 --- a/sys/vm/vm_object.h +++ b/sys/vm/vm_object.h @@ -61,7 +61,7 @@ * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. * - * $Id: vm_object.h,v 1.4 1995/01/09 16:05:50 davidg Exp $ + * $Id: vm_object.h,v 1.5 1995/01/24 10:13:24 davidg Exp $ */ /* @@ -82,26 +82,25 @@ struct vm_object { struct pglist memq; /* Resident memory */ - TAILQ_ENTRY(vm_object) object_list; /* list of all objects */ - u_short flags; /* see below */ - u_short paging_in_progress; /* Paging (in or out) so don't collapse or destroy */ + TAILQ_HEAD(rslist, vm_object) reverse_shadow_head; /* objects that this is a shadow for */ + TAILQ_ENTRY(vm_object) object_list; /* list of all objects */ + TAILQ_ENTRY(vm_object) reverse_shadow_list; /* chain of objects that are shadowed */ + TAILQ_ENTRY(vm_object) cached_list; /* for persistence */ + vm_size_t size; /* Object size */ int ref_count; /* How many refs?? */ struct { int recursion; /* object locking */ struct proc *proc; /* process owned */ } lock; - vm_size_t size; /* Object size */ - int resident_page_count; - /* number of resident pages */ - struct vm_object *copy; /* Object that holds copies of my changed pages */ + u_short flags; /* see below */ + u_short paging_in_progress; /* Paging (in or out) so don't collapse or destroy */ + int resident_page_count; /* number of resident pages */ vm_pager_t pager; /* Where to get data */ vm_offset_t paging_offset; /* Offset into paging space */ struct vm_object *shadow; /* My shadow */ vm_offset_t shadow_offset; /* Offset in shadow */ + struct vm_object *copy; /* Object that holds copies of my changed pages */ vm_offset_t last_read; /* last read in object -- detect seq behavior */ - TAILQ_ENTRY(vm_object) cached_list; /* for persistence */ - TAILQ_ENTRY(vm_object) reverse_shadow_list; /* chain of objects that are shadowed */ - TAILQ_HEAD(rslist, vm_object) reverse_shadow_head; /* objects that this is a shadow for */ }; /* |
