diff options
Diffstat (limited to 'vm/vm_map.c')
| -rw-r--r-- | vm/vm_map.c | 47 |
1 files changed, 15 insertions, 32 deletions
diff --git a/vm/vm_map.c b/vm/vm_map.c index 0c888b6..1b331d6 100644 --- a/vm/vm_map.c +++ b/vm/vm_map.c @@ -152,44 +152,27 @@ vm_object_t vm_submap_object = &vm_submap_object_store; * vm_map_cache: used to allocate maps. * vm_map_entry_cache: used to allocate map entries. * vm_map_kentry_cache: used to allocate map entries for the kernel. - * - * Kernel map entries are allocated from a special cache, using a custom - * page allocation function to avoid recursion. It would be difficult - * (perhaps impossible) for the kernel to allocate more memory to an entry - * cache when it became empty since the very act of allocating memory - * implies the creation of a new entry. */ -vm_offset_t kentry_data; -vm_size_t kentry_data_size = KENTRY_DATA_SIZE; - -static vm_offset_t kentry_pagealloc(vm_size_t size) -{ - vm_offset_t result; - - if (size > kentry_data_size) - panic("vm_map: kentry memory exhausted"); - - result = kentry_data; - kentry_data += size; - kentry_data_size -= size; - return result; -} - void vm_map_init(void) { - kmem_cache_init(&vm_map_cache, "vm_map", sizeof(struct vm_map), 0, - NULL, NULL, NULL, 0); - kmem_cache_init(&vm_map_entry_cache, "vm_map_entry", - sizeof(struct vm_map_entry), 0, NULL, NULL, NULL, 0); -#if 0 + kmem_cache_init (&vm_map_cache, + "vm_map", + sizeof(struct vm_map), 0, + NULL, 0); + kmem_cache_init (&vm_map_entry_cache, + "vm_map_entry", + sizeof(struct vm_map_entry), 0, + NULL, 0); +#if 1 kmem_cache_init(&vm_map_kentry_cache, "vm_map_kentry", - sizeof(struct vm_map_entry), 0, NULL, kentry_pagealloc, - NULL, KMEM_CACHE_NOCPUPOOL | KMEM_CACHE_NOOFFSLAB - | KMEM_CACHE_NORECLAIM); + sizeof(struct vm_map_entry), 0, + NULL, KMEM_CACHE_NOCPUPOOL | KMEM_CACHE_NOOFFSLAB); #endif - kmem_cache_init(&vm_map_copy_cache, "vm_map_copy", - sizeof(struct vm_map_copy), 0, NULL, NULL, NULL, 0); + kmem_cache_init (&vm_map_copy_cache, + "vm_map_copy", + sizeof(struct vm_map_copy), 0, + NULL, 0); /* * Submap object is initialized by vm_object_init. |