osfmk/vm/vm_map.c

418  *	It is important to note that only one writeable reference
548 	 * If successful, this also grabs a reference on the memory object,
578 	 * Release the reference obtained by apple_protect_pager_setup().
579 	 * The mapping (if it succeeded) is now holding a reference on the
911  *	Adds valid reference and residence counts to the given map.
1018  *	will detect the state and increment the reference count, causing
2541 			/* JMM - drop reference on pager here */
2659 				/* take a reference on the object */
2864 		 *	Throw away the reference to the
3019 		 *	Throw away the reference to the
3145 	 *	Hang onto a reference on the object in case a
4059 		 * We're unwiring memory at the request of the user.  See if we're removing the last user wire reference.
4065 			 * We're removing the last user wire reference.  Decrement the wired_count and the total
4098  *	The map must not be locked, but a reference must remain to the
4398 		 * the appropriate wire reference count.
4402 			 * entry is already wired down, get our reference
4594  *	The map must not be locked, but a reference must remain to the map
4668 			 * have a reference to it, because if we did, this
6894  *		Take an object reference and unlock map. The "entry" may
6919  *		Release the object reference
7299 			 *	Take an object reference, and record
7348 			 *	Release the object reference
7613 		/* take an extra reference on the entry's "object" */
8217 			/* keep an outstanding reference for all maps in */
8298 			 * is internal, we can move the object reference
8301 			 * We make another reference to the object, because
8365 		 *	Take an object reference, so that we may
8432 		 *	Throw away the extra reference
8781  *	Our caller donates an object reference.
8991 	 *	norma case. Bump the reference count for the
9291  *	this map has the only reference to the data in question.
11112  *	Sets the paging reference behavior of the specified address
11113  *	range in the target map.  Paging reference behavior affects
12036 			 * Throw away the old object reference of the new entry.
12045 			 * already hold a reference on the object.
12080 			 * Throw away the old object reference of the new entry.
12987 	if (m->reference || pmap_is_referenced(m->phys_page))
13218 		 * keep reference on the object until syncing is done
13493  *	Removes a reference from the specified map,