On Mon, Jul 10, 2023 at 06:42:36PM +0800, Ming Lei wrote: > Userspace may write 0 to discard_max_bytes, and this patch still can > override user setting. True. Maybe the right thing is to have a user_limit field, and just looks at the min of that and the hw limit everywhere. These hardware vs user limits are a pain, and we'll probably need some proper infrastructure for them :P
