279 static void metapage_read_end_io(struct bio *bio, int err)  in metapage_read_end_io()  argument
281 	struct page *page = bio->bi_private;  in metapage_read_end_io()
283 	if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) {  in metapage_read_end_io()
289 	bio_put(bio);  in metapage_read_end_io()
334 static void metapage_write_end_io(struct bio *bio, int err)  in metapage_write_end_io()  argument
336 	struct page *page = bio->bi_private;  in metapage_write_end_io()
340 	if (! test_bit(BIO_UPTODATE, &bio->bi_flags)) {  in metapage_write_end_io()
345 	bio_put(bio);  in metapage_write_end_io()
350 	struct bio *bio = NULL;  in metapage_writepage()  local
395 		if (bio) {  in metapage_writepage()
404 			if (bio_add_page(bio, page, bio_bytes, bio_offset) <  in metapage_writepage()
412 			if (!bio->bi_iter.bi_size)  in metapage_writepage()
414 			submit_bio(WRITE, bio);  in metapage_writepage()
416 			bio = NULL;  in metapage_writepage()
432 		bio = bio_alloc(GFP_NOFS, 1);  in metapage_writepage()
433 		bio->bi_bdev = inode->i_sb->s_bdev;  in metapage_writepage()
434 		bio->bi_iter.bi_sector = pblock << (inode->i_blkbits - 9);  in metapage_writepage()
435 		bio->bi_end_io = metapage_write_end_io;  in metapage_writepage()
436 		bio->bi_private = page;  in metapage_writepage()
445 	if (bio) {  in metapage_writepage()
446 		if (bio_add_page(bio, page, bio_bytes, bio_offset) < bio_bytes)  in metapage_writepage()
448 		if (!bio->bi_iter.bi_size)  in metapage_writepage()
451 		submit_bio(WRITE, bio);  in metapage_writepage()
472 		       4, bio, sizeof(*bio), 0);  in metapage_writepage()
474 	bio_put(bio);  in metapage_writepage()
486 	struct bio *bio = NULL;  in metapage_readpage()  local
508 			if (bio)  in metapage_readpage()
509 				submit_bio(READ, bio);  in metapage_readpage()
511 			bio = bio_alloc(GFP_NOFS, 1);  in metapage_readpage()
512 			bio->bi_bdev = inode->i_sb->s_bdev;  in metapage_readpage()
513 			bio->bi_iter.bi_sector =  in metapage_readpage()
515 			bio->bi_end_io = metapage_read_end_io;  in metapage_readpage()
516 			bio->bi_private = page;  in metapage_readpage()
519 			if (bio_add_page(bio, page, len, offset) < len)  in metapage_readpage()
525 	if (bio)  in metapage_readpage()
526 		submit_bio(READ, bio);  in metapage_readpage()
534 	bio_put(bio);  in metapage_readpage()