On Wed, Jul 24, 2013 at 9:08 AM, Cyrill Gorcunov <gorcunov@xxxxxxxxx> wrote: > Andy Lutomirski reported that in case if a page with _PAGE_SOFT_DIRTY > bit set get swapped out, the bit is getting lost and no longer > available when pte read back. Potentially silly question (due to my completely lack of understanding of how swapping works in Linux): what about file-backed pages? (Arguably these would be best supported by filesystems instead of by the core vm, in which case it might make sense to drop soft-dirty support for these pages entirely.) --Andy -- 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>