#include <kern/assert.h>
#include <kern/host.h>
#include <kern/thread.h>
+#include <kern/ipc_kobject.h>
#include <ipc/ipc_port.h>
#include <ipc/ipc_space.h>
-#include <default_pager/default_pager_types.h>
-#include <default_pager/default_pager_object_server.h>
-
#include <vm/vm_map.h>
#include <vm/vm_pageout.h>
#include <vm/memory_object.h>
struct vnode *vnode_handle; /* vnode handle */
} *vnode_pager_t;
+
#define pager_ikot pager_header.io_bits
-ipc_port_t
-trigger_name_to_port( /* forward */
- mach_port_t);
kern_return_t
vnode_pager_cluster_read( /* forward */
vnode_pager_lookup( /* forward */
memory_object_t);
+struct vnode *
+vnode_pager_lookup_vnode( /* forward */
+ memory_object_t);
+
zone_t vnode_pager_zone;
extern unsigned long vm_cs_validated_resets;
#endif
-/*
- * Routine: mach_macx_triggers
- * Function:
- * Syscall interface to set the call backs for low and
- * high water marks.
- */
-int
-mach_macx_triggers(
- struct macx_triggers_args *args)
-{
- int hi_water = args->hi_water;
- int low_water = args->low_water;
- int flags = args->flags;
- mach_port_t trigger_name = args->alert_port;
- kern_return_t kr;
- memory_object_default_t default_pager;
- ipc_port_t trigger_port;
-
- default_pager = MEMORY_OBJECT_DEFAULT_NULL;
- kr = host_default_memory_manager(host_priv_self(),
- &default_pager, 0);
- if(kr != KERN_SUCCESS) {
- return EINVAL;
- }
-
- if (((flags & SWAP_ENCRYPT_ON) && (flags & SWAP_ENCRYPT_OFF)) ||
- ((flags & SWAP_COMPACT_ENABLE) && (flags & SWAP_COMPACT_DISABLE))) {
- /* can't have it both ways */
- return EINVAL;
- }
-
- if (default_pager_init_flag == 0) {
- start_def_pager(NULL);
- default_pager_init_flag = 1;
- }
-
- if (flags & SWAP_ENCRYPT_ON) {
- /* ENCRYPTED SWAP: tell default_pager to encrypt */
- default_pager_triggers(default_pager,
- 0, 0,
- SWAP_ENCRYPT_ON,
- IP_NULL);
- } else if (flags & SWAP_ENCRYPT_OFF) {
- /* ENCRYPTED SWAP: tell default_pager not to encrypt */
- default_pager_triggers(default_pager,
- 0, 0,
- SWAP_ENCRYPT_OFF,
- IP_NULL);
- }
-
- if (flags & USE_EMERGENCY_SWAP_FILE_FIRST) {
- /*
- * Time to switch to the emergency segment.
- */
- return default_pager_triggers(default_pager,
- 0, 0,
- USE_EMERGENCY_SWAP_FILE_FIRST,
- IP_NULL);
- }
-
- if (flags & SWAP_FILE_CREATION_ERROR) {
- /*
- * For some reason, the dynamic pager failed to create a swap file.
- */
- trigger_port = trigger_name_to_port(trigger_name);
- if(trigger_port == NULL) {
- return EINVAL;
- }
- /* trigger_port is locked and active */
- ipc_port_make_send_locked(trigger_port);
- ip_unlock(trigger_port);
- default_pager_triggers(default_pager,
- 0, 0,
- SWAP_FILE_CREATION_ERROR,
- trigger_port);
- }
-
- if (flags & HI_WAT_ALERT) {
- trigger_port = trigger_name_to_port(trigger_name);
- if(trigger_port == NULL) {
- return EINVAL;
- }
- /* trigger_port is locked and active */
- ipc_port_make_send_locked(trigger_port);
- ip_unlock(trigger_port);
- default_pager_triggers(default_pager,
- hi_water, low_water,
- HI_WAT_ALERT, trigger_port);
- }
-
- if (flags & LO_WAT_ALERT) {
- trigger_port = trigger_name_to_port(trigger_name);
- if(trigger_port == NULL) {
- return EINVAL;
- }
- /* trigger_port is locked and active */
- ipc_port_make_send_locked(trigger_port);
- ip_unlock(trigger_port);
- default_pager_triggers(default_pager,
- hi_water, low_water,
- LO_WAT_ALERT, trigger_port);
- }
-
-
- if (flags & PROC_RESUME) {
-
- /*
- * For this call, hi_water is used to pass in the pid of the process we want to resume
- * or unthrottle. This is of course restricted to the superuser (checked inside of
- * proc_resetpcontrol).
- */
-
- return proc_resetpcontrol(hi_water);
- }
-
- /*
- * Set thread scheduling priority and policy for the current thread
- * it is assumed for the time being that the thread setting the alert
- * is the same one which will be servicing it.
- *
- * XXX This does not belong in the kernel XXX
- */
- if (flags & HI_WAT_ALERT) {
- thread_precedence_policy_data_t pre;
- thread_extended_policy_data_t ext;
-
- ext.timeshare = FALSE;
- pre.importance = INT32_MAX;
-
- thread_policy_set(current_thread(),
- THREAD_EXTENDED_POLICY,
- (thread_policy_t)&ext,
- THREAD_EXTENDED_POLICY_COUNT);
-
- thread_policy_set(current_thread(),
- THREAD_PRECEDENCE_POLICY,
- (thread_policy_t)&pre,
- THREAD_PRECEDENCE_POLICY_COUNT);
-
- current_thread()->options |= TH_OPT_VMPRIV;
- }
-
- if (flags & (SWAP_COMPACT_DISABLE | SWAP_COMPACT_ENABLE)) {
- return macx_backing_store_compaction(flags & (SWAP_COMPACT_DISABLE | SWAP_COMPACT_ENABLE));
- }
-
- return 0;
-}
-
-/*
- *
- */
-ipc_port_t
-trigger_name_to_port(
- mach_port_t trigger_name)
-{
- ipc_port_t trigger_port;
- ipc_space_t space;
-
- if (trigger_name == 0)
- return (NULL);
-
- space = current_space();
- if(ipc_port_translate_receive(space, CAST_MACH_PORT_TO_NAME(trigger_name),
- &trigger_port) != KERN_SUCCESS)
- return (NULL);
- return trigger_port;
-}
-
extern int uiomove64(addr64_t, int, void *);
#define MAX_RUN 32
int i;
int orig_offset;
vm_page_t page_run[MAX_RUN];
+ int dirty_count; /* keeps track of number of pages dirtied as part of this uiomove */
object = memory_object_control_to_vm_object(control);
if (object == VM_OBJECT_NULL) {
return 0;
}
orig_offset = start_offset;
-
+
+ dirty_count = 0;
while (io_requested && retval == 0) {
cur_needed = (start_offset + io_requested + (PAGE_SIZE - 1)) / PAGE_SIZE;
if (cur_needed > MAX_RUN)
cur_needed = MAX_RUN;
-
+
for (cur_run = 0; cur_run < cur_needed; ) {
if ((dst_page = vm_page_lookup(object, offset)) == VM_PAGE_NULL)
PAGE_SLEEP(object, dst_page, THREAD_UNINT);
continue;
}
- if (dst_page->laundry) {
- dst_page->pageout = FALSE;
-
+ if (dst_page->laundry)
vm_pageout_steal_laundry(dst_page, FALSE);
- }
+
/*
* this routine is only called when copying
* to/from real files... no need to consider
assert(!dst_page->encrypted);
if (mark_dirty) {
+ if (dst_page->dirty == FALSE)
+ dirty_count++;
SET_PAGE_DIRTY(dst_page, FALSE);
if (dst_page->cs_validated &&
!dst_page->cs_tainted) {
#if DEVELOPMENT || DEBUG
vm_cs_validated_resets++;
#endif
- pmap_disconnect(dst_page->phys_page);
+ pmap_disconnect(VM_PAGE_GET_PHYS_PAGE(dst_page));
}
}
dst_page->busy = TRUE;
if ((xsize = PAGE_SIZE - start_offset) > io_requested)
xsize = io_requested;
- if ( (retval = uiomove64((addr64_t)(((addr64_t)(dst_page->phys_page) << 12) + start_offset), xsize, uio)) )
+ if ( (retval = uiomove64((addr64_t)(((addr64_t)(VM_PAGE_GET_PHYS_PAGE(dst_page)) << PAGE_SHIFT) + start_offset), xsize, uio)) )
break;
io_requested -= xsize;
* update clustered and speculative state
*
*/
- VM_PAGE_CONSUME_CLUSTERED(dst_page);
+ if (dst_page->clustered)
+ VM_PAGE_CONSUME_CLUSTERED(dst_page);
PAGE_WAKEUP_DONE(dst_page);
}
orig_offset = 0;
}
+ if (object->pager)
+ task_update_logical_writes(current_task(), (dirty_count * PAGE_SIZE), TASK_WRITE_DEFERRED, vnode_pager_lookup_vnode(object->pager));
vm_object_unlock(object);
-
return (retval);
}
void
vnode_pager_bootstrap(void)
{
- register vm_size_t size;
+ vm_size_t size;
size = (vm_size_t) sizeof(struct vnode_pager);
vnode_pager_zone = zinit(size, (vm_size_t) MAX_VNODE*size,
__unused boolean_t kernel_copy,
int upl_flags)
{
- register vnode_pager_t vnode_object;
+ vnode_pager_t vnode_object;
vnode_object = vnode_pager_lookup(mem_obj);
}
kern_return_t
-vnode_pager_get_object_pathname(
+vnode_pager_get_object_name(
memory_object_t mem_obj,
char *pathname,
- vm_size_t *length_p)
+ vm_size_t pathname_len,
+ char *filename,
+ vm_size_t filename_len,
+ boolean_t *truncated_path_p)
{
vnode_pager_t vnode_object;
vnode_object = vnode_pager_lookup(mem_obj);
- return vnode_pager_get_pathname(vnode_object->vnode_handle,
- pathname,
- length_p);
+ return vnode_pager_get_name(vnode_object->vnode_handle,
+ pathname,
+ pathname_len,
+ filename,
+ filename_len,
+ truncated_path_p);
}
kern_return_t
-vnode_pager_get_object_filename(
- memory_object_t mem_obj,
- const char **filename)
+vnode_pager_get_object_mtime(
+ memory_object_t mem_obj,
+ struct timespec *mtime,
+ struct timespec *cs_mtime)
{
vnode_pager_t vnode_object;
vnode_object = vnode_pager_lookup(mem_obj);
- return vnode_pager_get_filename(vnode_object->vnode_handle,
- filename);
-}
-
-kern_return_t
-vnode_pager_get_object_cs_blobs(
- memory_object_t mem_obj,
- void **blobs)
-{
- vnode_pager_t vnode_object;
-
- if (mem_obj == MEMORY_OBJECT_NULL ||
- mem_obj->mo_pager_ops != &vnode_pager_ops) {
- return KERN_INVALID_ARGUMENT;
- }
-
- vnode_object = vnode_pager_lookup(mem_obj);
-
- return vnode_pager_get_cs_blobs(vnode_object->vnode_handle,
- blobs);
+ return vnode_pager_get_mtime(vnode_object->vnode_handle,
+ mtime,
+ cs_mtime);
}
#if CHECK_CS_VALIDATION_BITMAP
vnode_object = vnode_pager_lookup(mem_obj);
- size = MAX_UPL_TRANSFER * PAGE_SIZE;
+ size = MAX_UPL_TRANSFER_BYTES;
base_offset = offset;
if (memory_object_cluster_size(vnode_object->control_handle, &base_offset, &size, &io_streaming, fault_info) != KERN_SUCCESS)
vnode_pager_reference(
memory_object_t mem_obj)
{
- register vnode_pager_t vnode_object;
+ vnode_pager_t vnode_object;
unsigned int new_ref_count;
vnode_object = vnode_pager_lookup(mem_obj);
vnode_pager_deallocate(
memory_object_t mem_obj)
{
- register vnode_pager_t vnode_object;
+ vnode_pager_t vnode_object;
PAGER_DEBUG(PAGER_ALL, ("vnode_pager_deallocate: %p\n", mem_obj));
memory_object_size_t length,
__unused vm_sync_t sync_flags)
{
- register vnode_pager_t vnode_object;
+ vnode_pager_t vnode_object;
PAGER_DEBUG(PAGER_ALL, ("vnode_pager_synchronize: %p\n", mem_obj));
vnode_pager_last_unmap(
memory_object_t mem_obj)
{
- register vnode_pager_t vnode_object;
+ vnode_pager_t vnode_object;
PAGER_DEBUG(PAGER_ALL, ("vnode_pager_last_unmap: %p\n", mem_obj));
upl_flags |= UPL_KEEPCACHED;
while (cnt) {
- size = (cnt < (PAGE_SIZE * MAX_UPL_TRANSFER)) ? cnt : (PAGE_SIZE * MAX_UPL_TRANSFER); /* effective max */
+ size = (cnt < MAX_UPL_TRANSFER_BYTES) ? cnt : MAX_UPL_TRANSFER_BYTES; /* effective max */
assert((upl_size_t) size == size);
vnode_pageout(vnode_object->vnode_handle,
* and then clip the size to insure we
* don't request past the end of the underlying file
*/
- size = PAGE_SIZE * MAX_UPL_TRANSFER;
+ size = MAX_UPL_TRANSFER_BYTES;
base_offset = offset & ~((signed)(size - 1));
if ((base_offset + size) > vnode_size)
}
assert((upl_size_t) size == size);
vnode_pageout(vnode_object->vnode_handle,
- NULL, (upl_offset_t)(offset - base_offset), base_offset, (upl_size_t) size, UPL_VNODE_PAGER, NULL);
+ NULL, (upl_offset_t)(offset - base_offset), base_offset, (upl_size_t) size,
+ (upl_flags & UPL_IOSYNC) | UPL_VNODE_PAGER, NULL);
}
}
vnode_object_create(
struct vnode *vp)
{
- register vnode_pager_t vnode_object;
+ vnode_pager_t vnode_object;
vnode_object = (struct vnode_pager *) zalloc(vnode_pager_zone);
if (vnode_object == VNODE_PAGER_NULL)
}
+struct vnode *
+vnode_pager_lookup_vnode(
+ memory_object_t name)
+{
+ vnode_pager_t vnode_object;
+ vnode_object = (vnode_pager_t)name;
+ if(vnode_object->pager_ops == &vnode_pager_ops)
+ return (vnode_object->vnode_handle);
+ else
+ return NULL;
+}
+
/*********************** proc_info implementation *************/
#include <sys/bsdtask_info.h>
start = entry->vme_start;
- pinfo->pri_offset = entry->offset;
+ pinfo->pri_offset = VME_OFFSET(entry);
pinfo->pri_protection = entry->protection;
pinfo->pri_max_protection = entry->max_protection;
pinfo->pri_inheritance = entry->inheritance;
pinfo->pri_behavior = entry->behavior;
pinfo->pri_user_wired_count = entry->user_wired_count;
- pinfo->pri_user_tag = entry->alias;
+ pinfo->pri_user_tag = VME_ALIAS(entry);
if (entry->is_sub_map) {
pinfo->pri_flags |= PROC_REGION_SUBMAP;
extended.protection = entry->protection;
- extended.user_tag = entry->alias;
+ extended.user_tag = VME_ALIAS(entry);
extended.pages_resident = 0;
extended.pages_swapped_out = 0;
extended.pages_shared_now_private = 0;
extended.external_pager = 0;
extended.shadow_depth = 0;
- vm_map_region_walk(map, start, entry, entry->offset, entry->vme_end - start, &extended);
+ vm_map_region_walk(map, start, entry, VME_OFFSET(entry), entry->vme_end - start, &extended);
if (extended.external_pager && extended.ref_count == 2 && extended.share_mode == SM_SHARED)
extended.share_mode = SM_PRIVATE;
return(1);
}
+int
+fill_procregioninfo_onlymappedvnodes(task_t task, uint64_t arg, struct proc_regioninfo_internal *pinfo, uintptr_t *vnodeaddr, uint32_t *vid)
+{
+
+ vm_map_t map;
+ vm_map_offset_t address = (vm_map_offset_t )arg;
+ vm_map_entry_t tmp_entry;
+ vm_map_entry_t entry;
+
+ task_lock(task);
+ map = task->map;
+ if (map == VM_MAP_NULL)
+ {
+ task_unlock(task);
+ return(0);
+ }
+ vm_map_reference(map);
+ task_unlock(task);
+
+ vm_map_lock_read(map);
+
+ if (!vm_map_lookup_entry(map, address, &tmp_entry)) {
+ if ((entry = tmp_entry->vme_next) == vm_map_to_entry(map)) {
+ vm_map_unlock_read(map);
+ vm_map_deallocate(map);
+ return(0);
+ }
+ } else {
+ entry = tmp_entry;
+ }
+
+ while (entry != vm_map_to_entry(map)) {
+ *vnodeaddr = 0;
+ *vid = 0;
+
+ if (entry->is_sub_map == 0) {
+ if (fill_vnodeinfoforaddr(entry, vnodeaddr, vid)) {
+
+ pinfo->pri_offset = VME_OFFSET(entry);
+ pinfo->pri_protection = entry->protection;
+ pinfo->pri_max_protection = entry->max_protection;
+ pinfo->pri_inheritance = entry->inheritance;
+ pinfo->pri_behavior = entry->behavior;
+ pinfo->pri_user_wired_count = entry->user_wired_count;
+ pinfo->pri_user_tag = VME_ALIAS(entry);
+
+ if (entry->is_shared)
+ pinfo->pri_flags |= PROC_REGION_SHARED;
+
+ pinfo->pri_pages_resident = 0;
+ pinfo->pri_pages_shared_now_private = 0;
+ pinfo->pri_pages_swapped_out = 0;
+ pinfo->pri_pages_dirtied = 0;
+ pinfo->pri_ref_count = 0;
+ pinfo->pri_shadow_depth = 0;
+ pinfo->pri_share_mode = 0;
+
+ pinfo->pri_private_pages_resident = 0;
+ pinfo->pri_shared_pages_resident = 0;
+ pinfo->pri_obj_id = 0;
+
+ pinfo->pri_address = (uint64_t)entry->vme_start;
+ pinfo->pri_size = (uint64_t)(entry->vme_end - entry->vme_start);
+ pinfo->pri_depth = 0;
+
+ vm_map_unlock_read(map);
+ vm_map_deallocate(map);
+ return(1);
+ }
+ }
+
+ /* Keep searching for a vnode-backed mapping */
+ entry = entry->vme_next;
+ }
+
+ vm_map_unlock_read(map);
+ vm_map_deallocate(map);
+ return(0);
+}
+
static int
fill_vnodeinfoforaddr(
vm_map_entry_t entry,
* The last object in the shadow chain has the
* relevant pager information.
*/
- top_object = entry->object.vm_object;
+ top_object = VME_OBJECT(entry);
if (top_object == VM_OBJECT_NULL) {
object = VM_OBJECT_NULL;
shadow_depth = 0;
return(KERN_FAILURE);
}
+#if CONFIG_IOSCHED
+kern_return_t
+vnode_pager_get_object_devvp(
+ memory_object_t mem_obj,
+ uintptr_t *devvp)
+{
+ struct vnode *vp;
+ uint32_t vid;
+
+ if(vnode_pager_get_object_vnode(mem_obj, (uintptr_t *)&vp, (uint32_t *)&vid) != KERN_SUCCESS)
+ return (KERN_FAILURE);
+ *devvp = (uintptr_t)vnode_mountdevvp(vp);
+ if (*devvp)
+ return (KERN_SUCCESS);
+ return (KERN_FAILURE);
+}
+#endif
/*
* Find the underlying vnode object for the given vm_map_entry. If found, return with the
* relevant pager information.
*/
- top_object = entry->object.vm_object;
+ top_object = VME_OBJECT(entry);
if (top_object) {
vm_object_lock(top_object);
projects / apple / xnu.git / blobdiff