On 9/2/26 20:00, Lorenzo Stoakes (ARM) wrote: > To lay the foundation for a future change that converts > MAP_PRIVATE-/dev/zero mappings to be truly anonymous, add the ability to > uniquely identify these mappings. > > With the memory character device now part of mm/ this is trivially > achievable through a file_is_dev_zero() predicate that simply tests that > the file operation hooks are zero_fops. > > Also update userland VMA tests to expose file_is_dev_zero() and provide > a stub zero_fops for testing. > > Signed-off-by: Lorenzo Stoakes (ARM) <[email protected]> > ---
yes! Acked-by: David Hildenbrand (Arm) <[email protected]> -- Cheers, David
