On Tue, Mar 11, 2025 at 10:37:27PM -0700, Luis Chamberlain wrote: > > If you need extra per-driver validatation, do it in the driver. > > Are you suggesting we just move back the PAGE_SIZE check, PAGE_SIZE now is a consumer (i.e. file system) limitation. Having a flag in the provider (driver) does not make sense. > or to keep > the checks for the block driver limits into each driver? Most drivers probably don't have a limit other than than that implicit by the field width used for reporting. So in general the driver should not need any checks. The only exceptions might be for virtual drivers where the value comes from userspace, but even then it is a bit doubtful.