On Mon, 15 Oct 2018 16:23:11 -0400 Andrea Arcangeli <aarcange@xxxxxxxxxx> wrote: > There should be no cache left by the time we overwrite the old > transhuge pmd with the new one. It's already too late to flush through > the virtual address because we already copied the page data to the new > physical address. > > So flush the cache before the data copy. > > Also delete the "end" variable to shutoff a "unused variable" warning > on x86 where flush_cache_range() is a noop. What will be the runtime effects of this change?
