285 static void metapage_read_end_io(struct bio *bio, int err)  in metapage_read_end_io()  argument
287 	struct page *page = bio->bi_private;  in metapage_read_end_io()
289 	if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) {  in metapage_read_end_io()
295 	bio_put(bio);  in metapage_read_end_io()
340 static void metapage_write_end_io(struct bio *bio, int err)  in metapage_write_end_io()  argument
342 	struct page *page = bio->bi_private;  in metapage_write_end_io()
346 	if (! test_bit(BIO_UPTODATE, &bio->bi_flags)) {  in metapage_write_end_io()
351 	bio_put(bio);  in metapage_write_end_io()
356 	struct bio *bio = NULL;  in metapage_writepage()  local
399 		if (bio) {  in metapage_writepage()
409 			if (bio_add_page(bio, page, bio_bytes, bio_offset) <  in metapage_writepage()
417 			if (!bio->bi_size)  in metapage_writepage()
419 			submit_bio(WRITE, bio);  in metapage_writepage()
421 			bio = NULL;  in metapage_writepage()
435 		bio = bio_alloc(GFP_NOFS, 1);  in metapage_writepage()
436 		bio->bi_bdev = inode->i_sb->s_bdev;  in metapage_writepage()
437 		bio->bi_sector = pblock << (inode->i_blkbits - 9);  in metapage_writepage()
438 		bio->bi_end_io = metapage_write_end_io;  in metapage_writepage()
439 		bio->bi_private = page;  in metapage_writepage()
448 	if (bio) {  in metapage_writepage()
449 		if (bio_add_page(bio, page, bio_bytes, bio_offset) < bio_bytes)  in metapage_writepage()
451 		if (!bio->bi_size)  in metapage_writepage()
454 		submit_bio(WRITE, bio);  in metapage_writepage()
472 		       4, bio, sizeof(*bio), 0);  in metapage_writepage()
474 	bio_put(bio);  in metapage_writepage()
484 	struct bio *bio = NULL;  in metapage_readpage()  local
506 			if (bio)  in metapage_readpage()
507 				submit_bio(READ, bio);  in metapage_readpage()
509 			bio = bio_alloc(GFP_NOFS, 1);  in metapage_readpage()
510 			bio->bi_bdev = inode->i_sb->s_bdev;  in metapage_readpage()
511 			bio->bi_sector = pblock << (inode->i_blkbits - 9);  in metapage_readpage()
512 			bio->bi_end_io = metapage_read_end_io;  in metapage_readpage()
513 			bio->bi_private = page;  in metapage_readpage()
516 			if (bio_add_page(bio, page, len, offset) < len)  in metapage_readpage()
522 	if (bio)  in metapage_readpage()
523 		submit_bio(READ, bio);  in metapage_readpage()
531 	bio_put(bio);  in metapage_readpage()