Kevin Corry <kevcorry@xxxxxxxxxx> wrote: > > Now that you mention it, the memory pages to hold the copied data is allocated > at the time the snapshot device is activated, and uses > alloc_page(GFP_KERNEL). Should we switch this to alloc_page(GFP_HIGHUSER)? Sure, if possible. You'll need to map them in with kmap_atomic() when actually altering their contents, of course.
