On 8/25/22 12:22 PM, Greg KH wrote: > On Thu, Aug 25, 2022 at 12:09:24PM +0500, Muhammad Usama Anjum wrote: >> - The flags can be specified in the flags field. Currently only one >> PAGEMAP_SD_NO_REUSED_REGIONS is supported which can be specified to >> ignore the VMA dirty flags. > > You forgot to check that all other bits in that flag are set to 0 > properly, otherwise you can never add a new bit to the field ever as you > can't expect userspace got it right and did not accidentaly set it > already. > > There is kernel documentation on how to add a new ioctl, you might want > to read up on that first before resending this. Thank you so much for the review. I'll revisit and resend a v3. > > thanks, > > greg k-h -- Muhammad Usama Anjum