On Mon, Oct 28, 2024 at 12:58:05PM +0100, Christoph Hellwig wrote: > On Fri, Oct 25, 2024 at 02:36:41PM -0700, Keith Busch wrote: > > From: Keith Busch <kbusch@xxxxxxxxxx> > > > > When multiple partitions are used, you may want to enforce different > > subsets of the available write hints for each partition. Provide a > > bitmap attribute of the available write hints, and allow an admin to > > write a different mask to set the partition's allowed write hints. > > Trying my best Greg impersonator voice: This needs to be documented > in Documentation/ABI/stable/sysfs-block. > > That would have also helped me understanding it. AFAIK the split here > is an opt-in, which means the use case I explained in the previous > case would still not work out of the box, right? Right.