Re: [PATCH v10 0/1] bio: limit bio max size

[Christoph Hellwig]

FYI, I still think this whole limit is a bad idea, and instead we
need to fix the algorithms to not waste time iterating over the bios
again and again in non-optimal ways.  I still haven't seen an answer
if your original latency problems are reproducable with the iomap
direct I/O implementation, and we've also not even started the work on
making some of the common iterators less stupid.