128 	struct pending_block *block;  member
176 			       struct pending_block *block)  in free_pending_block()  argument
180 	for (i = 0; i < block->vec_cnt; i++) {  in free_pending_block()
181 		if (block->vecs[i].bv_page)  in free_pending_block()
182 			__free_page(block->vecs[i].bv_page);  in free_pending_block()
184 	kfree(block->data);  in free_pending_block()
185 	kfree(block);  in free_pending_block()
241 			 struct pending_block *block, sector_t sector)  in log_one_block()  argument
248 	entry.sector = cpu_to_le64(block->sector);  in log_one_block()
249 	entry.nr_sectors = cpu_to_le64(block->nr_sectors);  in log_one_block()
250 	entry.flags = cpu_to_le64(block->flags);  in log_one_block()
251 	entry.data_len = cpu_to_le64(block->datalen);  in log_one_block()
252 	if (write_metadata(lc, &entry, sizeof(entry), block->data,  in log_one_block()
253 			   block->datalen, sector)) {  in log_one_block()
254 		free_pending_block(lc, block);  in log_one_block()
258 	if (!block->vec_cnt)  in log_one_block()
262 	bio = bio_alloc(GFP_KERNEL, block->vec_cnt);  in log_one_block()
275 	for (i = 0; i < block->vec_cnt; i++) {  in log_one_block()
280 		ret = bio_add_page(bio, block->vecs[i].bv_page,  in log_one_block()
281 				   block->vecs[i].bv_len, 0);  in log_one_block()
282 		if (ret != block->vecs[i].bv_len) {  in log_one_block()
285 			bio = bio_alloc(GFP_KERNEL, block->vec_cnt - i);  in log_one_block()
297 			ret = bio_add_page(bio, block->vecs[i].bv_page,  in log_one_block()
298 					   block->vecs[i].bv_len, 0);  in log_one_block()
299 			if (ret != block->vecs[i].bv_len) {  in log_one_block()
305 		sector += block->vecs[i].bv_len >> SECTOR_SHIFT;  in log_one_block()
309 	kfree(block->data);  in log_one_block()
310 	kfree(block);  in log_one_block()
314 	free_pending_block(lc, block);  in log_one_block()
349 		struct pending_block *block = NULL;  in log_writes_kthread()  local
354 			block = list_first_entry(&lc->logging_blocks,  in log_writes_kthread()
356 			list_del_init(&block->list);  in log_writes_kthread()
361 			if (block->flags & LOG_DISCARD_FLAG)  in log_writes_kthread()
364 				lc->next_sector += block->nr_sectors + 1;  in log_writes_kthread()
381 			super = (block->flags & (LOG_FUA_FLAG | LOG_MARK_FLAG));  in log_writes_kthread()
388 		if (block) {  in log_writes_kthread()
390 				ret = log_one_block(lc, block, sector);  in log_writes_kthread()
399 				free_pending_block(lc, block);  in log_writes_kthread()
487 	struct pending_block *block;  in log_mark()  local
490 	block = kzalloc(sizeof(struct pending_block), GFP_KERNEL);  in log_mark()
491 	if (!block) {  in log_mark()
496 	block->data = kstrndup(data, maxsize, GFP_KERNEL);  in log_mark()
497 	if (!block->data) {  in log_mark()
499 		kfree(block);  in log_mark()
503 	block->datalen = strlen(block->data);  in log_mark()
504 	block->flags |= LOG_MARK_FLAG;  in log_mark()
506 	list_add_tail(&block->list, &lc->logging_blocks);  in log_mark()
548 	struct pending_block *block;  in log_writes_map()  local
557 	pb->block = NULL;  in log_writes_map()
582 	block = kzalloc(alloc_size, GFP_NOIO);  in log_writes_map()
583 	if (!block) {  in log_writes_map()
590 	INIT_LIST_HEAD(&block->list);  in log_writes_map()
591 	pb->block = block;  in log_writes_map()
595 		block->flags |= LOG_FLUSH_FLAG;  in log_writes_map()
597 		block->flags |= LOG_FUA_FLAG;  in log_writes_map()
599 		block->flags |= LOG_DISCARD_FLAG;  in log_writes_map()
601 	block->sector = bio->bi_iter.bi_sector;  in log_writes_map()
602 	block->nr_sectors = bio_sectors(bio);  in log_writes_map()
616 		list_splice_init(&lc->unflushed_blocks, &block->list);  in log_writes_map()
637 			free_pending_block(lc, block);  in log_writes_map()
649 		block->vecs[i].bv_page = page;  in log_writes_map()
650 		block->vecs[i].bv_len = bv.bv_len;  in log_writes_map()
651 		block->vec_cnt++;  in log_writes_map()
658 		list_splice_init(&lc->unflushed_blocks, &block->list);  in log_writes_map()
671 	if (bio_data_dir(bio) == WRITE && pb->block) {  in normal_end_io()
672 		struct pending_block *block = pb->block;  in normal_end_io()  local
676 		if (block->flags & LOG_FLUSH_FLAG) {  in normal_end_io()
677 			list_splice_tail_init(&block->list, &lc->logging_blocks);  in normal_end_io()
678 			list_add_tail(&block->list, &lc->logging_blocks);  in normal_end_io()
680 		} else if (block->flags & LOG_FUA_FLAG) {  in normal_end_io()
681 			list_add_tail(&block->list, &lc->logging_blocks);  in normal_end_io()
684 			list_add_tail(&block->list, &lc->unflushed_blocks);  in normal_end_io()