102 struct mm_slot {  struct
119 	struct mm_slot *mm_slot;  member
197 static struct mm_slot ksm_mm_head = {
201 	.mm_slot = &ksm_mm_head,
260 	mm_slot_cache = KSM_KMEM_CACHE(mm_slot, 0);  in ksm_slab_init()
309 static inline struct mm_slot *alloc_mm_slot(void)  in alloc_mm_slot()
316 static inline void free_mm_slot(struct mm_slot *mm_slot)  in free_mm_slot()  argument
318 	kmem_cache_free(mm_slot_cache, mm_slot);  in free_mm_slot()
321 static struct mm_slot *get_mm_slot(struct mm_struct *mm)  in get_mm_slot()
323 	struct mm_slot *slot;  in get_mm_slot()
333 				    struct mm_slot *mm_slot)  in insert_to_mm_slots_hash()  argument
335 	mm_slot->mm = mm;  in insert_to_mm_slots_hash()
336 	hash_add(mm_slots_hash, &mm_slot->link, (unsigned long)mm);  in insert_to_mm_slots_hash()
658 static void remove_trailing_rmap_items(struct mm_slot *mm_slot,  in remove_trailing_rmap_items()  argument
770 	struct mm_slot *mm_slot;  in unmerge_and_remove_all_rmap_items()  local
776 	ksm_scan.mm_slot = list_entry(ksm_mm_head.mm_list.next,  in unmerge_and_remove_all_rmap_items()
777 						struct mm_slot, mm_list);  in unmerge_and_remove_all_rmap_items()
780 	for (mm_slot = ksm_scan.mm_slot;  in unmerge_and_remove_all_rmap_items()
781 			mm_slot != &ksm_mm_head; mm_slot = ksm_scan.mm_slot) {  in unmerge_and_remove_all_rmap_items()
782 		mm = mm_slot->mm;  in unmerge_and_remove_all_rmap_items()
795 		remove_trailing_rmap_items(mm_slot, &mm_slot->rmap_list);  in unmerge_and_remove_all_rmap_items()
798 		ksm_scan.mm_slot = list_entry(mm_slot->mm_list.next,  in unmerge_and_remove_all_rmap_items()
799 						struct mm_slot, mm_list);  in unmerge_and_remove_all_rmap_items()
801 			hash_del(&mm_slot->link);  in unmerge_and_remove_all_rmap_items()
802 			list_del(&mm_slot->mm_list);  in unmerge_and_remove_all_rmap_items()
805 			free_mm_slot(mm_slot);  in unmerge_and_remove_all_rmap_items()
823 	ksm_scan.mm_slot = &ksm_mm_head;  in unmerge_and_remove_all_rmap_items()
1526 static struct rmap_item *get_next_rmap_item(struct mm_slot *mm_slot,  in get_next_rmap_item()  argument
1546 		rmap_item->mm = mm_slot->mm;  in get_next_rmap_item()
1557 	struct mm_slot *slot;  in scan_get_next_rmap_item()
1565 	slot = ksm_scan.mm_slot;  in scan_get_next_rmap_item()
1604 		slot = list_entry(slot->mm_list.next, struct mm_slot, mm_list);  in scan_get_next_rmap_item()
1605 		ksm_scan.mm_slot = slot;  in scan_get_next_rmap_item()
1674 	ksm_scan.mm_slot = list_entry(slot->mm_list.next,  in scan_get_next_rmap_item()
1675 						struct mm_slot, mm_list);  in scan_get_next_rmap_item()
1700 	slot = ksm_scan.mm_slot;  in scan_get_next_rmap_item()
1806 	struct mm_slot *mm_slot;  in __ksm_enter()  local
1809 	mm_slot = alloc_mm_slot();  in __ksm_enter()
1810 	if (!mm_slot)  in __ksm_enter()
1817 	insert_to_mm_slots_hash(mm, mm_slot);  in __ksm_enter()
1829 		list_add_tail(&mm_slot->mm_list, &ksm_mm_head.mm_list);  in __ksm_enter()
1831 		list_add_tail(&mm_slot->mm_list, &ksm_scan.mm_slot->mm_list);  in __ksm_enter()
1845 	struct mm_slot *mm_slot;  in __ksm_exit()  local
1858 	mm_slot = get_mm_slot(mm);  in __ksm_exit()
1859 	if (mm_slot && ksm_scan.mm_slot != mm_slot) {  in __ksm_exit()
1860 		if (!mm_slot->rmap_list) {  in __ksm_exit()
1861 			hash_del(&mm_slot->link);  in __ksm_exit()
1862 			list_del(&mm_slot->mm_list);  in __ksm_exit()
1865 			list_move(&mm_slot->mm_list,  in __ksm_exit()
1866 				  &ksm_scan.mm_slot->mm_list);  in __ksm_exit()
1872 		free_mm_slot(mm_slot);  in __ksm_exit()
1875 	} else if (mm_slot) {  in __ksm_exit()