Messages in this thread | | | Date | Thu, 6 Aug 2015 17:00:04 -0700 | From | Kent Overstreet <> | Subject | Re: [PATCH v5 01/11] block: make generic_make_request handle arbitrarily sized bios |
| |
On Tue, Aug 04, 2015 at 01:36:26PM +0200, Christoph Hellwig wrote: > On Sun, Aug 02, 2015 at 10:58:22PM -0700, Ming Lin wrote: > > I think the important thing is the late splitting for regular bio. > > For discard/write_same bio, how about just don't do late splitting? > > I'd hate having to special case them even more. Especially as the > discard splitting is nasty and we really don't want to send giant > discards by default anyway (see Jens' patches to limit discard size > by default).
Why is it that we don't want to send giant discards? Is it a latency issue?
| |