diff options
| -rw-r--r-- | sys/vm/vm_map.c | 9 | ||||
| -rw-r--r-- | sys/vm/vm_map.h | 2 |
2 files changed, 6 insertions, 5 deletions
diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c index fea65e5..71e6d6a 100644 --- a/sys/vm/vm_map.c +++ b/sys/vm/vm_map.c @@ -877,7 +877,7 @@ vm_map_insert(vm_map_t map, vm_object_t object, vm_ooffset_t offset, #endif if (cow & (MAP_PREFAULT|MAP_PREFAULT_PARTIAL)) { - vm_map_pmap_enter(map, start, + vm_map_pmap_enter(map, start, prot, object, OFF_TO_IDX(offset), end - start, cow & MAP_PREFAULT_PARTIAL); } @@ -1243,19 +1243,19 @@ vm_map_submap( /* * vm_map_pmap_enter: * - * Preload the mappings for the given object into the specified + * Preload read-only mappings for the given object into the specified * map. This eliminates the soft faults on process startup and * immediately after an mmap(2). */ void -vm_map_pmap_enter(vm_map_t map, vm_offset_t addr, +vm_map_pmap_enter(vm_map_t map, vm_offset_t addr, vm_prot_t prot, vm_object_t object, vm_pindex_t pindex, vm_size_t size, int flags) { vm_offset_t tmpidx; int psize; vm_page_t p, mpte; - if (object == NULL) + if ((prot & VM_PROT_READ) == 0 || object == NULL) return; mtx_lock(&Giant); VM_OBJECT_LOCK(object); @@ -1547,6 +1547,7 @@ vm_map_madvise( if (behav == MADV_WILLNEED) { vm_map_pmap_enter(map, useStart, + current->protection, current->object.vm_object, pindex, (count << PAGE_SHIFT), diff --git a/sys/vm/vm_map.h b/sys/vm/vm_map.h index 51e66ca..502b5b9 100644 --- a/sys/vm/vm_map.h +++ b/sys/vm/vm_map.h @@ -333,7 +333,7 @@ int vm_map_lookup (vm_map_t *, vm_offset_t, vm_prot_t, vm_map_entry_t *, vm_obje vm_pindex_t *, vm_prot_t *, boolean_t *); void vm_map_lookup_done (vm_map_t, vm_map_entry_t); boolean_t vm_map_lookup_entry (vm_map_t, vm_offset_t, vm_map_entry_t *); -void vm_map_pmap_enter(vm_map_t map, vm_offset_t addr, +void vm_map_pmap_enter(vm_map_t map, vm_offset_t addr, vm_prot_t prot, vm_object_t object, vm_pindex_t pindex, vm_size_t size, int flags); int vm_map_protect (vm_map_t, vm_offset_t, vm_offset_t, vm_prot_t, boolean_t); int vm_map_remove (vm_map_t, vm_offset_t, vm_offset_t); |
