On Thu, May 21, 2020 at 06:04:43PM -0700, John Hubbard wrote: > Instead of scattering these assertions across the drivers, > do this assertion inside the core of get_user_pages_fast*() > functions. That also includes pin_user_pages_fast*() > routines. > > Add a might_lock_read(mmap_sem) call to internal_get_user_pages_fast(). > > Suggested-by: Matthew Wilcox <willy@xxxxxxxxxxxxx> Yup, this is exactly what I meant. Feel free to transform this into an Acked-by: or Reviewed-by: if that's the appropriate tag. Thanks, John!
