On Wed, 26 Oct 2022 15:33:47 +0000 Wei Liu <wei.liu@xxxxxxxxxx> wrote: > On Thu, Sep 29, 2022 at 11:01:38PM -0700, Shradha Gupta wrote: > > Current code allows the page_reporting_order parameter to be changed > > via sysfs to any integer value. The new value is used immediately > > in page reporting code with no validation, which could cause incorrect > > behavior. Fix this by adding validation of the new value. > > Export this parameter for use in the driver that is calling the > > page_reporting_register(). > > This is needed by drivers like hv_balloon to know the order of the > > pages reported. Traditionally the values provided in the kernel boot > > line or subsequently changed via sysfs take priority therefore, if > > page_reporting_order parameter's value is set, it takes precedence > > over the value passed while registering with the driver. > > > > Signed-off-by: Shradha Gupta <shradhagupta@xxxxxxxxxxxxxxxxxxx> > > Andrew and other MM reviewers, can I get an ack / nack for this patch? Looks OK to me. Can this be merged via the hyperv tree?