On Tue, Apr 3, 2012 at 1:52 PM, vasanth rao naik sabavat
<vasanth.raon...@gmail.com> wrote:
> Hello Mark,
>
> I think pmap_remove_pages() is executed only for the current process.
>
> 2549 #ifdef PMAP_REMOVE_PAGES_CURPROC_ONLY
> 2550 if (pmap != vmspace_pmap(curthread->td_proc->p_vmspace)) {
> 2551 printf("warning: pmap_remove_pages called with non-current
> pmap\n");
> 2552 return;
> 2553 }
> 2554 #endif
>
> I dont still get it why this was removed?
>
> Thanks,
> Vasanth
That is pretty old code. Newer code does not make that assumption.
Without the assumption that the pages are from the current map, then you
have to use the direct physical -> virtual mapping:
2547 #ifdef PMAP_REMOVE_PAGES_CURPROC_ONLY
2548 pte = vtopte(pv->pv_va);
2549 #else
2550 pte = pmap_pte(pmap, pv->pv_va);
2551 #endif
--Mark Tinguely.
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