osfmk/vm/vm_map.c

423  *	It is important to note that only one writeable reference
554 	 * If successful, this also grabs a reference on the memory object,
584 	 * Release the reference obtained by apple_protect_pager_setup().
585 	 * The mapping (if it succeeded) is now holding a reference on the
921  *	Adds valid reference and residence counts to the given map.
1028  *	will detect the state and increment the reference count, causing
1428 		 * We haven't taken a reference on the object either.
2673 			/* JMM - drop reference on pager here */
2809 				/* take a reference on the object */
3038 		 *	Throw away the reference to the
3272 		 *	Throw away the reference to the
3398 	 *	Hang onto a reference on the object in case a
4325 		 * We're unwiring memory at the request of the user.  See if we're removing the last user wire reference.
4331 			 * We're removing the last user wire reference.  Decrement the wired_count and the total
4364  *	The map must not be locked, but a reference must remain to the
4692 		 * the appropriate wire reference count.
4714 			 * entry is already wired down, get our reference
5005  *	The map must not be locked, but a reference must remain to the map
5079 			 * have a reference to it, because if we did, this
7411  *		Take an object reference and unlock map. The "entry" may
7436  *		Release the object reference
7825 			 *	Take an object reference, and record
7875 			 *	Release the object reference
8154 		/* take an extra reference on the entry's "object" */
8787 			/* keep an outstanding reference for all maps in */
8871 			 * is internal, we can move the object reference
8874 			 * We make another reference to the object, because
8938 		 *	Take an object reference, so that we may
9008 		 *	Throw away the extra reference
9428  *	Our caller donates an object reference.
9639 	 *	norma case. Bump the reference count for the
9950  *	this map has the only reference to the data in question.
11787  *	Sets the paging reference behavior of the specified address
11788  *	range in the target map.  Paging reference behavior affects
12754 			 * Throw away the old object reference of the new entry.
12763 			 * already hold a reference on the object.
12798 			 * Throw away the old object reference of the new entry.
13721 	if (m->reference || pmap_is_referenced(m->phys_page))
13952 		 * keep reference on the object until syncing is done
14227  *	Removes a reference from the specified map,