* Improve atomicity of PTE updates. * Centralize a few constants. Change-Id: Iaeeb82e9dc7f7ca97d13ba816fb72c6475754310 Reviewed-on: https://review.haiku-os.org/c/haiku/+/8171 Reviewed-by: waddlesplash <[email protected]> Reviewed-by: Fredrik Holmqvist <[email protected]> Tested-by: Commit checker robot <[email protected]>