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()
657 static void remove_trailing_rmap_items(struct mm_slot *mm_slot,  in remove_trailing_rmap_items()  argument
769 	struct mm_slot *mm_slot;  in unmerge_and_remove_all_rmap_items()  local
775 	ksm_scan.mm_slot = list_entry(ksm_mm_head.mm_list.next,  in unmerge_and_remove_all_rmap_items()
776 						struct mm_slot, mm_list);  in unmerge_and_remove_all_rmap_items()
779 	for (mm_slot = ksm_scan.mm_slot;  in unmerge_and_remove_all_rmap_items()
780 			mm_slot != &ksm_mm_head; mm_slot = ksm_scan.mm_slot) {  in unmerge_and_remove_all_rmap_items()
781 		mm = mm_slot->mm;  in unmerge_and_remove_all_rmap_items()
794 		remove_trailing_rmap_items(mm_slot, &mm_slot->rmap_list);  in unmerge_and_remove_all_rmap_items()
797 		ksm_scan.mm_slot = list_entry(mm_slot->mm_list.next,  in unmerge_and_remove_all_rmap_items()
798 						struct mm_slot, mm_list);  in unmerge_and_remove_all_rmap_items()
800 			hash_del(&mm_slot->link);  in unmerge_and_remove_all_rmap_items()
801 			list_del(&mm_slot->mm_list);  in unmerge_and_remove_all_rmap_items()
804 			free_mm_slot(mm_slot);  in unmerge_and_remove_all_rmap_items()
822 	ksm_scan.mm_slot = &ksm_mm_head;  in unmerge_and_remove_all_rmap_items()
1507 static struct rmap_item *get_next_rmap_item(struct mm_slot *mm_slot,  in get_next_rmap_item()  argument
1527 		rmap_item->mm = mm_slot->mm;  in get_next_rmap_item()
1538 	struct mm_slot *slot;  in scan_get_next_rmap_item()
1546 	slot = ksm_scan.mm_slot;  in scan_get_next_rmap_item()
1585 		slot = list_entry(slot->mm_list.next, struct mm_slot, mm_list);  in scan_get_next_rmap_item()
1586 		ksm_scan.mm_slot = slot;  in scan_get_next_rmap_item()
1655 	ksm_scan.mm_slot = list_entry(slot->mm_list.next,  in scan_get_next_rmap_item()
1656 						struct mm_slot, mm_list);  in scan_get_next_rmap_item()
1681 	slot = ksm_scan.mm_slot;  in scan_get_next_rmap_item()
1787 	struct mm_slot *mm_slot;  in __ksm_enter()  local
1790 	mm_slot = alloc_mm_slot();  in __ksm_enter()
1791 	if (!mm_slot)  in __ksm_enter()
1798 	insert_to_mm_slots_hash(mm, mm_slot);  in __ksm_enter()
1810 		list_add_tail(&mm_slot->mm_list, &ksm_mm_head.mm_list);  in __ksm_enter()
1812 		list_add_tail(&mm_slot->mm_list, &ksm_scan.mm_slot->mm_list);  in __ksm_enter()
1826 	struct mm_slot *mm_slot;  in __ksm_exit()  local
1839 	mm_slot = get_mm_slot(mm);  in __ksm_exit()
1840 	if (mm_slot && ksm_scan.mm_slot != mm_slot) {  in __ksm_exit()
1841 		if (!mm_slot->rmap_list) {  in __ksm_exit()
1842 			hash_del(&mm_slot->link);  in __ksm_exit()
1843 			list_del(&mm_slot->mm_list);  in __ksm_exit()
1846 			list_move(&mm_slot->mm_list,  in __ksm_exit()
1847 				  &ksm_scan.mm_slot->mm_list);  in __ksm_exit()
1853 		free_mm_slot(mm_slot);  in __ksm_exit()
1856 	} else if (mm_slot) {  in __ksm_exit()