On Mon, Dec 08, 2025 at 12:10:10PM +0000, Andreas Gruenbacher wrote: > Add a bio_set_errno(bio, errno) helper that sets bio->bi_status to > errno_to_blk_status(errno) if errno != 0. Replace instances of this > pattern in the code with a call to the new helper. > > The WRITE_ONCE() in bio_set_errno() ensures that the compiler won't > reorder things in a weird way, but it isn't needed to prevent tearing > because a single-byte field like bi_status cannot tear.
Not a fan of this. We should not be doing that very often (and as seen by the diff don't), so don't add a helper for it that makes people do it more often.
