prev_bio_flags 2942 fs/btrfs/extent_io.c unsigned long prev_bio_flags, prev_bio_flags 2958 fs/btrfs/extent_io.c if (prev_bio_flags & EXTENT_BIO_COMPRESSED) prev_bio_flags 2967 fs/btrfs/extent_io.c if (prev_bio_flags != bio_flags || !contig || !can_merge || prev_bio_flags 2970 fs/btrfs/extent_io.c ret = submit_one_bio(bio, mirror_num, prev_bio_flags);