xnu-1228.tar.gz

[apple/xnu.git] / osfmk / default_pager / dp_memory_object.c

diff --git a/osfmk/default_pager/dp_memory_object.c b/osfmk/default_pager/dp_memory_object.c
index c8ce4820e016faa682fb0e06c170d8d6feed10be..4690f5d3ef750e12c5499a910b1bd1b971b305c0 100644 (file)
--- a/osfmk/default_pager/dp_memory_object.c
+++ b/osfmk/default_pager/dp_memory_object.c
@@ -1,23 +1,29 @@
 /*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
@@ -351,6 +357,20 @@ default_pager_add(
 
 #endif
 
+const struct memory_object_pager_ops default_pager_ops = {
+       dp_memory_object_reference,
+       dp_memory_object_deallocate,
+       dp_memory_object_init,
+       dp_memory_object_terminate,
+       dp_memory_object_data_request,
+       dp_memory_object_data_return,
+       dp_memory_object_data_initialize,
+       dp_memory_object_data_unlock,
+       dp_memory_object_synchronize,
+       dp_memory_object_unmap,
+       "default pager"
+};
+
 kern_return_t
 dp_memory_object_init(
        memory_object_t         mem_obj,
@@ -562,7 +582,8 @@ dp_memory_object_data_request(
        memory_object_t         mem_obj,
        memory_object_offset_t  offset,
        vm_size_t               length,
-       __unused vm_prot_t              protection_required)
+       __unused vm_prot_t      protection_required,
+        memory_object_fault_info_t     fault_info)
 {
        vstruct_t               vs;
 
@@ -613,7 +634,7 @@ dp_memory_object_data_request(
        if ((offset & vm_page_mask) != 0 || (length & vm_page_mask) != 0)
                Panic("bad alignment");
 
-       pvs_cluster_read(vs, (vm_offset_t)offset, length);
+       pvs_cluster_read(vs, (vm_offset_t)offset, length, fault_info);
 
        vs_finish_read(vs);
 
@@ -709,7 +730,7 @@ dp_memory_object_data_return(
                /* a synchronous interface */
                /* return KERN_LOCK_OWNED; */
                upl_t           upl;
-               int             page_list_count = 0;
+               unsigned int    page_list_count = 0;
                memory_object_super_upl_request(vs->vs_control,
                                        (memory_object_offset_t)offset,
                                        size, size,
@@ -724,8 +745,8 @@ dp_memory_object_data_return(
        if ((vs->vs_seqno != vs->vs_next_seqno++)
                        || (vs->vs_readers)
                        || (vs->vs_xfer_pending)) {
-               upl_t   upl;
-               int     page_list_count = 0;
+               upl_t           upl;
+               unsigned int    page_list_count = 0;
 
                vs->vs_next_seqno--;
                 VS_UNLOCK(vs);
@@ -809,7 +830,7 @@ default_pager_memory_object_create(
         * and this default_pager structure
         */
 
-       vs->vs_mem_obj = ISVS;
+       vs->vs_pager_ops = &default_pager_ops;
        vs->vs_mem_obj_ikot = IKOT_MEMORY_OBJECT;
 
        /*
@@ -844,7 +865,7 @@ default_pager_object_create(
         * Set up associations between the default pager
         * and this vstruct structure
         */
-       vs->vs_mem_obj = ISVS;
+       vs->vs_pager_ops = &default_pager_ops;
        vstruct_list_insert(vs);
        *mem_objp = vs_to_mem_obj(vs);
        return KERN_SUCCESS;