120 struct mm_slot {  struct
137 	struct mm_slot *mm_slot;  member
234 static struct mm_slot ksm_mm_head = {
238 	.mm_slot = &ksm_mm_head,
316 	mm_slot_cache = KSM_KMEM_CACHE(mm_slot, 0);  in ksm_slab_init()
412 static inline struct mm_slot *alloc_mm_slot(void)  in alloc_mm_slot()
419 static inline void free_mm_slot(struct mm_slot *mm_slot)  in free_mm_slot()  argument
421 	kmem_cache_free(mm_slot_cache, mm_slot);  in free_mm_slot()
424 static struct mm_slot *get_mm_slot(struct mm_struct *mm)  in get_mm_slot()
426 	struct mm_slot *slot;  in get_mm_slot()
436 				    struct mm_slot *mm_slot)  in insert_to_mm_slots_hash()  argument
438 	mm_slot->mm = mm;  in insert_to_mm_slots_hash()
439 	hash_add(mm_slots_hash, &mm_slot->link, (unsigned long)mm);  in insert_to_mm_slots_hash()
821 static void remove_trailing_rmap_items(struct mm_slot *mm_slot,  in remove_trailing_rmap_items()  argument
968 	struct mm_slot *mm_slot;  in unmerge_and_remove_all_rmap_items()  local
974 	ksm_scan.mm_slot = list_entry(ksm_mm_head.mm_list.next,  in unmerge_and_remove_all_rmap_items()
975 						struct mm_slot, mm_list);  in unmerge_and_remove_all_rmap_items()
978 	for (mm_slot = ksm_scan.mm_slot;  in unmerge_and_remove_all_rmap_items()
979 			mm_slot != &ksm_mm_head; mm_slot = ksm_scan.mm_slot) {  in unmerge_and_remove_all_rmap_items()
980 		mm = mm_slot->mm;  in unmerge_and_remove_all_rmap_items()
993 		remove_trailing_rmap_items(mm_slot, &mm_slot->rmap_list);  in unmerge_and_remove_all_rmap_items()
997 		ksm_scan.mm_slot = list_entry(mm_slot->mm_list.next,  in unmerge_and_remove_all_rmap_items()
998 						struct mm_slot, mm_list);  in unmerge_and_remove_all_rmap_items()
1000 			hash_del(&mm_slot->link);  in unmerge_and_remove_all_rmap_items()
1001 			list_del(&mm_slot->mm_list);  in unmerge_and_remove_all_rmap_items()
1004 			free_mm_slot(mm_slot);  in unmerge_and_remove_all_rmap_items()
1019 	ksm_scan.mm_slot = &ksm_mm_head;  in unmerge_and_remove_all_rmap_items()
2198 static struct rmap_item *get_next_rmap_item(struct mm_slot *mm_slot,  in get_next_rmap_item()  argument
2218 		rmap_item->mm = mm_slot->mm;  in get_next_rmap_item()
2229 	struct mm_slot *slot;  in scan_get_next_rmap_item()
2237 	slot = ksm_scan.mm_slot;  in scan_get_next_rmap_item()
2275 		slot = list_entry(slot->mm_list.next, struct mm_slot, mm_list);  in scan_get_next_rmap_item()
2276 		ksm_scan.mm_slot = slot;  in scan_get_next_rmap_item()
2344 	ksm_scan.mm_slot = list_entry(slot->mm_list.next,  in scan_get_next_rmap_item()
2345 						struct mm_slot, mm_list);  in scan_get_next_rmap_item()
2377 	slot = ksm_scan.mm_slot;  in scan_get_next_rmap_item()
2495 	struct mm_slot *mm_slot;  in __ksm_enter()  local
2498 	mm_slot = alloc_mm_slot();  in __ksm_enter()
2499 	if (!mm_slot)  in __ksm_enter()
2506 	insert_to_mm_slots_hash(mm, mm_slot);  in __ksm_enter()
2518 		list_add_tail(&mm_slot->mm_list, &ksm_mm_head.mm_list);  in __ksm_enter()
2520 		list_add_tail(&mm_slot->mm_list, &ksm_scan.mm_slot->mm_list);  in __ksm_enter()
2534 	struct mm_slot *mm_slot;  in __ksm_exit()  local
2547 	mm_slot = get_mm_slot(mm);  in __ksm_exit()
2548 	if (mm_slot && ksm_scan.mm_slot != mm_slot) {  in __ksm_exit()
2549 		if (!mm_slot->rmap_list) {  in __ksm_exit()
2550 			hash_del(&mm_slot->link);  in __ksm_exit()
2551 			list_del(&mm_slot->mm_list);  in __ksm_exit()
2554 			list_move(&mm_slot->mm_list,  in __ksm_exit()
2555 				  &ksm_scan.mm_slot->mm_list);  in __ksm_exit()
2561 		free_mm_slot(mm_slot);  in __ksm_exit()
2564 	} else if (mm_slot) {  in __ksm_exit()