Remove deprecated external memory management interface.

* NEWS: Update.
* device/dev_pager.c (device_pager_data_request): Prune unused branch.
(device_pager_data_request_done): Remove function.
(device_pager_data_write): Likewise.
(device_pager_data_write_done): Likewise.
(device_pager_copy): Use 'memory_object_ready'.
* device/dev_pager.h (device_pager_data_write_done): Remove prototype.
* device/device_pager.srv (memory_object_data_write): Remove macro.
* doc/mach.texi: Update documentation.
* include/mach/mach.defs (memory_object_data_provided): Drop RPC.
(memory_object_set_attributes): Likewise.
* include/mach/memory_object.defs: Update comments.
(memory_object_data_write): Drop RPC.
* include/mach/memory_object_default.defs: Update comments.
* include/mach_debug/vm_info.h (VOI_STATE_USE_OLD_PAGEOUT): Drop
macro.
* vm/memory_object.c (memory_object_data_provided): Remove function.
(memory_object_data_error): Simplify.
(memory_object_set_attributes_common): Make static, remove unused
parameters, simplify.
(memory_object_change_attributes): Update callsite.
(memory_object_set_attributes): Remove function.
(memory_object_ready): Update callsite.
* vm/vm_debug.c (mach_vm_object_info): Adapt to the changes.
* vm/vm_object.c (vm_object_bootstrap): Likewise.
* vm/vm_object.h (struct vm_object): Drop flag 'use_old_pageout'.
* vm/vm_pageout.c: Update comments.
(vm_pageout_page): Simplify.

3 files changed, 6 insertions, 168 deletions

diff --git a/device/dev_pager.c b/device/dev_pager.c
index 40331706..7130229b 100644
--- a/device/dev_pager.c
+++ b/device/dev_pager.c
@@ -356,45 +356,7 @@ kern_return_t	device_pager_data_request(
 	    vm_object_deallocate(object);
 	}
 	else {
-	    io_req_t			ior;
-	    mach_device_t		device;
-	    io_return_t			result;
-
 	    panic("(device_pager)data_request: dev pager");
-
-	    device = ds->device;
-	    mach_device_reference(device);
-	    dev_pager_deallocate(ds);
-
-	    /*
-	     * Package the read for the device driver.
-	     */
-	    io_req_alloc(ior, 0);
-
-	    ior->io_device	= device;
-	    ior->io_unit	= device->dev_number;
-	    ior->io_op		= IO_READ | IO_CALL;
-	    ior->io_mode	= 0;
-	    ior->io_recnum	= offset / device->bsize;
-	    ior->io_data	= 0;		/* driver must allocate */
-	    ior->io_count	= length;
-	    ior->io_alloc_size	= 0;		/* no data allocated yet */
-	    ior->io_residual	= 0;
-	    ior->io_error	= 0;
-	    ior->io_done	= device_pager_data_request_done;
-	    ior->io_reply_port	= pager_request;
-	    ior->io_reply_port_type = MACH_MSG_TYPE_PORT_SEND;
-
-	    result = (*device->dev_ops->d_read)(device->dev_number, ior);
-	    if (result == D_IO_QUEUED)
-		return (KERN_SUCCESS);
-
-	    /*
-	     * Return by queuing IOR for io_done thread, to reply in
-	     * correct environment (kernel).
-	     */
-	    ior->io_error = result;
-	    iodone(ior);
 	}
 
 	dev_pager_deallocate(ds);
@@ -402,125 +364,6 @@ kern_return_t	device_pager_data_request(
 	return (KERN_SUCCESS);
 }
 
-/*
- * Always called by io_done thread.
- */
-boolean_t device_pager_data_request_done(io_req_t	ior)
-{
-	vm_offset_t	start_alloc, end_alloc;
-	vm_size_t	size_read;
-
-	if (ior->io_error == D_SUCCESS) {
-	    size_read = ior->io_count;
-	    if (ior->io_residual) {
-		if (device_pager_debug)
-		    printf("(device_pager)data_request_done: r: 0x%lx\n", ior->io_residual);
-		memset((&ior->io_data[ior->io_count - ior->io_residual]), 0, 
-		      (size_t) ior->io_residual);
-	    }
-	} else {
-	    size_read = ior->io_count - ior->io_residual;
-	}
-
-	start_alloc = trunc_page(ior->io_data);
-	end_alloc   = start_alloc + round_page(ior->io_alloc_size);
-
-	if (ior->io_error == D_SUCCESS) {
-	    vm_map_copy_t copy;
-	    kern_return_t kr;
-
-	    kr = vm_map_copyin(kernel_map, (vm_offset_t)ior->io_data,
-				size_read, TRUE, &copy);
-	    if (kr != KERN_SUCCESS)
-		panic("device_pager_data_request_done");
-
-	    (void) r_memory_object_data_provided(
-					ior->io_reply_port,
-					ior->io_recnum * ior->io_device->bsize,
-					(vm_offset_t)copy,
-					size_read,
-					VM_PROT_NONE);
-	}
-	else {
-	    (void) r_memory_object_data_error(
-					ior->io_reply_port,
-					ior->io_recnum * ior->io_device->bsize,
-					(vm_size_t)ior->io_count,
-					ior->io_error);
-	}
-
-	(void)vm_deallocate(kernel_map,
-			    start_alloc,
-			    end_alloc - start_alloc);
-	mach_device_deallocate(ior->io_device);
-	return (TRUE);
-}
-
-kern_return_t device_pager_data_write(
-	const ipc_port_t	pager,
-	const ipc_port_t	pager_request,
-	vm_offset_t		offset,
-	pointer_t		addr,
-	vm_size_t		data_count)
-{
-	dev_pager_t		ds;
-	mach_device_t		device;
-	io_req_t		ior;
-	kern_return_t		result;
-
-	panic("(device_pager)data_write: called");
-
-	ds = dev_pager_hash_lookup(pager);
-	if (ds == DEV_PAGER_NULL)
-		panic("(device_pager)data_write: lookup failed");
-
-	if (ds->pager_request != pager_request)
-		panic("(device_pager)data_write: bad pager_request");
-
-	if (ds->type == CHAR_PAGER_TYPE)
-		panic("(device_pager)data_write: char pager");
-
-	device = ds->device;
-	mach_device_reference(device);
-	dev_pager_deallocate(ds);
-
-	/*
-	 * Package the write request for the device driver.
-	 */
-	io_req_alloc(ior, data_count);
-
-	ior->io_device		= device;
-	ior->io_unit		= device->dev_number;
-	ior->io_op		= IO_WRITE | IO_CALL;
-	ior->io_mode		= 0;
-	ior->io_recnum		= offset / device->bsize;
-	ior->io_data		= (io_buf_ptr_t)addr;
-	ior->io_count		= data_count;
-	ior->io_alloc_size	= data_count;	/* amount to deallocate */
-	ior->io_residual	= 0;
-	ior->io_error		= 0;
-	ior->io_done		= device_pager_data_write_done;
-	ior->io_reply_port	= IP_NULL;
-
-	result = (*device->dev_ops->d_write)(device->dev_number, ior);
-
-	if (result != D_IO_QUEUED) {
-	    device_write_dealloc(ior);
-	    io_req_free((vm_offset_t)ior);
-	    mach_device_deallocate(device);
-	}
-
-	return (KERN_SUCCESS);
-}
-
-boolean_t device_pager_data_write_done(io_req_t ior)
-{
-	device_write_dealloc(ior);
-	mach_device_deallocate(ior->io_device);
-
-	return (TRUE);
-}
-
 kern_return_t device_pager_copy(
 	const ipc_port_t	pager,
 	const ipc_port_t	pager_request,
@@ -618,15 +461,13 @@ kern_return_t device_pager_init_pager(
 	    /*
 	     * Reply that the object is ready
 	     */
-	    (void) r_memory_object_set_attributes(pager_request,
-						TRUE,	/* ready */
-						FALSE,	/* do not cache */
-						MEMORY_OBJECT_COPY_NONE);
+	    (void) r_memory_object_ready(pager_request,
+					 FALSE,	/* do not cache */
+					 MEMORY_OBJECT_COPY_NONE);
 	} else {
-	    (void) r_memory_object_set_attributes(pager_request,
-						TRUE,	/* ready */
-						TRUE,	/* cache */
-						MEMORY_OBJECT_COPY_DELAY);
+	    (void) r_memory_object_ready(pager_request,
+					 TRUE,	/* cache */
+					 MEMORY_OBJECT_COPY_DELAY);
 	}
 
 	dev_pager_deallocate(ds);
diff --git a/device/dev_pager.h b/device/dev_pager.h
index 7f97ee7e..7cced949 100644
--- a/device/dev_pager.h
+++ b/device/dev_pager.h
@@ -23,6 +23,4 @@ vm_offset_t device_map_page(void *dsp, vm_offset_t offset);
 
 boolean_t device_pager_data_request_done(io_req_t ior);
 
-boolean_t device_pager_data_write_done(io_req_t ior);
-
 #endif /* _DEVICE_DEV_PAGER_H_ */
diff --git a/device/device_pager.srv b/device/device_pager.srv
index e4e52eac..410323d9 100644
--- a/device/device_pager.srv
+++ b/device/device_pager.srv
@@ -35,7 +35,6 @@
 #define	memory_object_copy		device_pager_copy
 #define	memory_object_data_request	device_pager_data_request
 #define	memory_object_data_unlock	device_pager_data_unlock
-#define	memory_object_data_write	device_pager_data_write
 #define	memory_object_lock_completed	device_pager_lock_completed
 #define	memory_object_supply_completed	device_pager_supply_completed
 #define	memory_object_data_return	device_pager_data_return