75 	struct bio *orig_bio;
97 static struct bio *compressed_bio_alloc(struct block_device *bdev,  in compressed_bio_alloc()
155 static void end_compressed_bio_read(struct bio *bio, int err)  in end_compressed_bio_read()  argument
157 	struct compressed_bio *cb = bio->bi_private;  in end_compressed_bio_read()
174 				    (u64)bio->bi_iter.bi_sector << 9);  in end_compressed_bio_read()
220 	bio_put(bio);  in end_compressed_bio_read()
269 static void end_compressed_bio_write(struct bio *bio, int err)  in end_compressed_bio_write()  argument
272 	struct compressed_bio *cb = bio->bi_private;  in end_compressed_bio_write()
317 	bio_put(bio);  in end_compressed_bio_write()
335 	struct bio *bio = NULL;  in btrfs_submit_compressed_write()  local
364 	bio = compressed_bio_alloc(bdev, first_byte, GFP_NOFS);  in btrfs_submit_compressed_write()
365 	if (!bio) {  in btrfs_submit_compressed_write()
369 	bio->bi_private = cb;  in btrfs_submit_compressed_write()
370 	bio->bi_end_io = end_compressed_bio_write;  in btrfs_submit_compressed_write()
378 		if (bio->bi_iter.bi_size)  in btrfs_submit_compressed_write()
381 							   bio, 0);  in btrfs_submit_compressed_write()
386 		if (ret || bio_add_page(bio, page, PAGE_CACHE_SIZE, 0) <  in btrfs_submit_compressed_write()
388 			bio_get(bio);  in btrfs_submit_compressed_write()
397 			ret = btrfs_bio_wq_end_io(root->fs_info, bio,  in btrfs_submit_compressed_write()
402 				ret = btrfs_csum_one_bio(root, inode, bio,  in btrfs_submit_compressed_write()
407 			ret = btrfs_map_bio(root, WRITE, bio, 0, 1);  in btrfs_submit_compressed_write()
410 			bio_put(bio);  in btrfs_submit_compressed_write()
412 			bio = compressed_bio_alloc(bdev, first_byte, GFP_NOFS);  in btrfs_submit_compressed_write()
413 			BUG_ON(!bio);  in btrfs_submit_compressed_write()
414 			bio->bi_private = cb;  in btrfs_submit_compressed_write()
415 			bio->bi_end_io = end_compressed_bio_write;  in btrfs_submit_compressed_write()
416 			bio_add_page(bio, page, PAGE_CACHE_SIZE, 0);  in btrfs_submit_compressed_write()
427 	bio_get(bio);  in btrfs_submit_compressed_write()
429 	ret = btrfs_bio_wq_end_io(root->fs_info, bio, BTRFS_WQ_ENDIO_DATA);  in btrfs_submit_compressed_write()
433 		ret = btrfs_csum_one_bio(root, inode, bio, start, 1);  in btrfs_submit_compressed_write()
437 	ret = btrfs_map_bio(root, WRITE, bio, 0, 1);  in btrfs_submit_compressed_write()
440 	bio_put(bio);  in btrfs_submit_compressed_write()
567 int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,  in btrfs_submit_compressed_read()  argument
574 	unsigned long uncompressed_len = bio->bi_vcnt * PAGE_CACHE_SIZE;  in btrfs_submit_compressed_read()
580 	struct bio *comp_bio;  in btrfs_submit_compressed_read()
581 	u64 cur_disk_byte = (u64)bio->bi_iter.bi_sector << 9;  in btrfs_submit_compressed_read()
595 				   page_offset(bio->bi_io_vec->bv_page),  in btrfs_submit_compressed_read()
622 	cb->orig_bio = bio;  in btrfs_submit_compressed_read()
651 	uncompressed_len = bio->bi_vcnt * PAGE_CACHE_SIZE;  in btrfs_submit_compressed_read()