On 30.03.22 08:07, Christophe Leroy wrote: > > > Le 29/03/2022 à 18:43, David Hildenbrand a écrit : >> The swap type is simply stored in bits 0x1f of the swap pte. Let's >> simplify by just getting rid of _PAGE_BIT_SWAP_TYPE. It's not like that >> we can simply change it: _PAGE_SWP_SOFT_DIRTY would suddenly fall into >> _RPAGE_RSV1, which isn't possible and would make the >> BUILD_BUG_ON(_PAGE_HPTEFLAGS & _PAGE_SWP_SOFT_DIRTY) angry. >> >> While at it, make it clearer which bit we're actually using for >> _PAGE_SWP_SOFT_DIRTY by just using the proper define and introduce and >> use SWP_TYPE_MASK. >> >> Signed-off-by: David Hildenbrand <david@xxxxxxxxxx> >> --- >> arch/powerpc/include/asm/book3s/64/pgtable.h | 12 +++++------- > > Why only BOOK3S ? Why not BOOK3E as well ? Hi Cristophe, I'm focusing on the most relevant enterprise architectures for now. I don't have the capacity to convert each and every architecture at this point (especially, I don't to waste my time in case this doesn't get merged, and book3e didn't look straight forward to me). Once this series hits upstream, I can look into other architectures -- and I'll be happy if other people jump in that have more familiarity with the architecture-specific swp pte layouts. Thanks -- Thanks, David / dhildenb
