On Wed, Sep 04, 2024 at 08:26:04AM -0700, Keith Busch wrote: > From: Keith Busch <kbusch@xxxxxxxxxx> > > If a bio is merged to a req, the entire bio list is merged, so don't > temporarily unchain it when counting segments for consideration. As far as I can tell we never do merge decisions on bio lists. If bi_next is non-NULL here it probably is due to scheduler lists or something like it.