On Fri, Jun 17, 2005 at 08:43:35PM +0900, YAMAMOTO Takashi wrote:
> some ports use pmap_kenter_pa rather than pmap_enter for vmapbuf.

sure, but physio also uses uvm_vslock(), which always ends up using
pmap_enter() with VM_PROT_WRITE in the flags if we're modifying the page,
so the modified bit will be set at that point.

-Chuck