16 static bool tlb_next_batch(struct mmu_gather *tlb)  in tlb_next_batch()  argument
20 	batch = tlb->active;  in tlb_next_batch()
22 		tlb->active = batch->next;  in tlb_next_batch()
26 	if (tlb->batch_count == MAX_GATHER_BATCH_COUNT)  in tlb_next_batch()
33 	tlb->batch_count++;  in tlb_next_batch()
38 	tlb->active->next = batch;  in tlb_next_batch()
39 	tlb->active = batch;  in tlb_next_batch()
44 static void tlb_batch_pages_flush(struct mmu_gather *tlb)  in tlb_batch_pages_flush()  argument
48 	for (batch = &tlb->local; batch && batch->nr; batch = batch->next) {  in tlb_batch_pages_flush()
52 	tlb->active = &tlb->local;  in tlb_batch_pages_flush()
55 static void tlb_batch_list_free(struct mmu_gather *tlb)  in tlb_batch_list_free()  argument
59 	for (batch = tlb->local.next; batch; batch = next) {  in tlb_batch_list_free()
63 	tlb->local.next = NULL;  in tlb_batch_list_free()
66 bool __tlb_remove_page_size(struct mmu_gather *tlb, struct page *page, int page_size)  in __tlb_remove_page_size()  argument
70 	VM_BUG_ON(!tlb->end);  in __tlb_remove_page_size()
73 	VM_WARN_ON(tlb->page_size != page_size);  in __tlb_remove_page_size()
76 	batch = tlb->active;  in __tlb_remove_page_size()
83 		if (!tlb_next_batch(tlb))  in __tlb_remove_page_size()
85 		batch = tlb->active;  in __tlb_remove_page_size()
103 static inline void tlb_table_invalidate(struct mmu_gather *tlb)  in tlb_table_invalidate()  argument
111 	tlb_flush_mmu_tlbonly(tlb);  in tlb_table_invalidate()
146 static void tlb_table_flush(struct mmu_gather *tlb)  in tlb_table_flush()  argument
148 	struct mmu_table_batch **batch = &tlb->batch;  in tlb_table_flush()
151 		tlb_table_invalidate(tlb);  in tlb_table_flush()
157 void tlb_remove_table(struct mmu_gather *tlb, void *table)  in tlb_remove_table()  argument
159 	struct mmu_table_batch **batch = &tlb->batch;  in tlb_remove_table()
164 			tlb_table_invalidate(tlb);  in tlb_remove_table()
173 		tlb_table_flush(tlb);  in tlb_remove_table()
178 static void tlb_flush_mmu_free(struct mmu_gather *tlb)  in tlb_flush_mmu_free()  argument
181 	tlb_table_flush(tlb);  in tlb_flush_mmu_free()
184 	tlb_batch_pages_flush(tlb);  in tlb_flush_mmu_free()
188 void tlb_flush_mmu(struct mmu_gather *tlb)  in tlb_flush_mmu()  argument
190 	tlb_flush_mmu_tlbonly(tlb);  in tlb_flush_mmu()
191 	tlb_flush_mmu_free(tlb);  in tlb_flush_mmu()
206 void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm,  in tlb_gather_mmu()  argument
209 	tlb->mm = mm;  in tlb_gather_mmu()
212 	tlb->fullmm     = !(start | (end+1));  in tlb_gather_mmu()
215 	tlb->need_flush_all = 0;  in tlb_gather_mmu()
216 	tlb->local.next = NULL;  in tlb_gather_mmu()
217 	tlb->local.nr   = 0;  in tlb_gather_mmu()
218 	tlb->local.max  = ARRAY_SIZE(tlb->__pages);  in tlb_gather_mmu()
219 	tlb->active     = &tlb->local;  in tlb_gather_mmu()
220 	tlb->batch_count = 0;  in tlb_gather_mmu()
224 	tlb->batch = NULL;  in tlb_gather_mmu()
227 	tlb->page_size = 0;  in tlb_gather_mmu()
230 	__tlb_reset_range(tlb);  in tlb_gather_mmu()
231 	inc_tlb_flush_pending(tlb->mm);  in tlb_gather_mmu()
243 void tlb_finish_mmu(struct mmu_gather *tlb,  in tlb_finish_mmu()  argument
258 	if (mm_tlb_flush_nested(tlb->mm)) {  in tlb_finish_mmu()
267 		tlb->fullmm = 1;  in tlb_finish_mmu()
268 		__tlb_reset_range(tlb);  in tlb_finish_mmu()
269 		tlb->freed_tables = 1;  in tlb_finish_mmu()
272 	tlb_flush_mmu(tlb);  in tlb_finish_mmu()
275 	tlb_batch_list_free(tlb);  in tlb_finish_mmu()
277 	dec_tlb_flush_pending(tlb->mm);  in tlb_finish_mmu()