75 	struct bio *orig_bio;
97 static struct bio *compressed_bio_alloc(struct block_device *bdev,  in compressed_bio_alloc()
152 static void end_compressed_bio_read(struct bio *bio)  in end_compressed_bio_read()  argument
154 	struct compressed_bio *cb = bio->bi_private;  in end_compressed_bio_read()
160 	if (bio->bi_error)  in end_compressed_bio_read()
171 				    (u64)bio->bi_iter.bi_sector << 9);  in end_compressed_bio_read()
217 	bio_put(bio);  in end_compressed_bio_read()
266 static void end_compressed_bio_write(struct bio *bio)  in end_compressed_bio_write()  argument
269 	struct compressed_bio *cb = bio->bi_private;  in end_compressed_bio_write()
274 	if (bio->bi_error)  in end_compressed_bio_write()
293 					 bio->bi_error ? 0 : 1);  in end_compressed_bio_write()
314 	bio_put(bio);  in end_compressed_bio_write()
332 	struct bio *bio = NULL;  in btrfs_submit_compressed_write()  local
361 	bio = compressed_bio_alloc(bdev, first_byte, GFP_NOFS);  in btrfs_submit_compressed_write()
362 	if (!bio) {  in btrfs_submit_compressed_write()
366 	bio->bi_private = cb;  in btrfs_submit_compressed_write()
367 	bio->bi_end_io = end_compressed_bio_write;  in btrfs_submit_compressed_write()
375 		if (bio->bi_iter.bi_size)  in btrfs_submit_compressed_write()
378 							   bio, 0);  in btrfs_submit_compressed_write()
383 		if (ret || bio_add_page(bio, page, PAGE_CACHE_SIZE, 0) <  in btrfs_submit_compressed_write()
385 			bio_get(bio);  in btrfs_submit_compressed_write()
394 			ret = btrfs_bio_wq_end_io(root->fs_info, bio,  in btrfs_submit_compressed_write()
399 				ret = btrfs_csum_one_bio(root, inode, bio,  in btrfs_submit_compressed_write()
404 			ret = btrfs_map_bio(root, WRITE, bio, 0, 1);  in btrfs_submit_compressed_write()
407 			bio_put(bio);  in btrfs_submit_compressed_write()
409 			bio = compressed_bio_alloc(bdev, first_byte, GFP_NOFS);  in btrfs_submit_compressed_write()
410 			BUG_ON(!bio);  in btrfs_submit_compressed_write()
411 			bio->bi_private = cb;  in btrfs_submit_compressed_write()
412 			bio->bi_end_io = end_compressed_bio_write;  in btrfs_submit_compressed_write()
413 			bio_add_page(bio, page, PAGE_CACHE_SIZE, 0);  in btrfs_submit_compressed_write()
424 	bio_get(bio);  in btrfs_submit_compressed_write()
426 	ret = btrfs_bio_wq_end_io(root->fs_info, bio, BTRFS_WQ_ENDIO_DATA);  in btrfs_submit_compressed_write()
430 		ret = btrfs_csum_one_bio(root, inode, bio, start, 1);  in btrfs_submit_compressed_write()
434 	ret = btrfs_map_bio(root, WRITE, bio, 0, 1);  in btrfs_submit_compressed_write()
437 	bio_put(bio);  in btrfs_submit_compressed_write()
563 int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,  in btrfs_submit_compressed_read()  argument
570 	unsigned long uncompressed_len = bio->bi_vcnt * PAGE_CACHE_SIZE;  in btrfs_submit_compressed_read()
576 	struct bio *comp_bio;  in btrfs_submit_compressed_read()
577 	u64 cur_disk_byte = (u64)bio->bi_iter.bi_sector << 9;  in btrfs_submit_compressed_read()
591 				   page_offset(bio->bi_io_vec->bv_page),  in btrfs_submit_compressed_read()
618 	cb->orig_bio = bio;  in btrfs_submit_compressed_read()
647 	uncompressed_len = bio->bi_vcnt * PAGE_CACHE_SIZE;  in btrfs_submit_compressed_read()
697 				bio->bi_error = ret;  in btrfs_submit_compressed_read()
726 		bio->bi_error = ret;  in btrfs_submit_compressed_read()