142 struct vm_object {  struct
174 	struct vm_object        *vo_copy;       /* Object that should receive  argument
183 	struct vm_object        *shadow;        /* My shadow */  argument
187 		vm_object_offset_t vou_shadow_offset;   /* Offset into shadow */  argument
197 	vm_object_offset_t      paging_offset;  /* Offset into memory object */  argument
198 	memory_object_control_t pager_control;  /* Where data comes back */
201 	    copy_strategy;                      /* How to handle data copy */
210 	unsigned short          paging_in_progress:16;
211 	unsigned short          vo_size_delta;
212 	unsigned int            activity_in_progress;
223 	/* boolean_t array */ all_wanted:6,     /* Bit array of "want to be
227 	/* boolean_t */ pager_created:1,        /* Has pager been created? */
228 	/* boolean_t */ pager_initialized:1,    /* Are fields ready to use? */
229 	/* boolean_t */ pager_ready:1,          /* Will pager take requests? */
231 	/* boolean_t */ pager_trusted:1,        /* The pager for this object
236 	/* boolean_t */ can_persist:1,          /* The kernel may keep the data
242 	/* boolean_t */ internal:1,             /* Created by the kernel (and
267 	/* Allows vm_object_lookup  argument
280 	                                         * against the vm_object are  argument
283 	/* boolean_t */ shadow_severed:1,
308 	/* vm_object_destroy_reason_t */ no_pager_reason:2,  argument
326 	vm_object_offset_t      last_alloc;     /* last allocation offset */  argument
327 	vm_offset_t             cow_hint;       /* last page present in     */
329 	int                     sequential;     /* sequential access size */
331 	uint32_t                pages_created;
332 	uint32_t                pages_used;
335 	    wimg_bits:8,                /* cache WIMG bits         */
336 	    code_signed:1,              /* pages are signed and should be
339 	    transposed:1,               /* object was transposed with another */
340 	    mapping_in_progress:1,      /* pager being mapped/unmapped */
341 	    phantom_isssd:1,
342 	    volatile_empty:1,
343 	    volatile_fault:1,
344 	    all_reusable:1,
345 	    blocked_access:1,
346 	    set_cache_attr:1,
347 	    object_is_shared_cache:1,
348 	    purgeable_queue_type:2,
349 	    purgeable_queue_group:3,
350 	    io_tracking:1,
351 	    no_tag_update:1,            /*  */
353 	    eligible_for_secluded:1,
354 	    can_grab_secluded:1,
359 	    access_tracking:1,
363 	vo_ledger_tag:3,
364 	    vo_no_footprint:1;
367 	uint32_t        access_tracking_reads;
368 	uint32_t        access_tracking_writes;
371 	uint8_t                 scan_collisions;
372 	uint8_t                 __object4_unused_bits[1];
373 	vm_tag_t                wire_tag;
376 	uint32_t                phantom_object_id;
379 	queue_head_t            uplq;           /* List of outstanding upls */
389 	struct __pip_backtrace {
414 extern uint64_t vm_object_access_tracking_reads;  argument