From: Khalid Aziz <khalid.aziz@xxxxxxxxxx> Date: Mon, 7 Mar 2016 11:24:54 -0700 > Tags can be cleared by user by setting tag to 0. Tags are > automatically cleared by the hardware when the mapping for a virtual > address is removed from TSB (which is why swappable pages are a > problem), so kernel does not have to do it as part of clean up. You might be able to crib some bits for the Tag in the swp_entry_t, it's 64-bit and you can therefore steal bits from the offset field. That way you'll have the ADI tag in the page tables, ready to re-install at swapin time. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>