Subject: Re: UVM aobj: Large VM objects.
To: None <abs@NetBSD.org>
From: YAMAMOTO Takashi <email@example.com>
Date: 03/07/2006 22:09:22
> > however, i don't think long is appropriate here.
> > please introduce a 64-bit "page offset" type.
> > "typedef voff_t pgoff_t" should be fine.
> Can't we use something similar to vm_offset_t, which is
> appropriately sized for the machine?
> If we are ever going to need it to be 64bit on every arch with 32bit
> physical and virtual addresses then I agree it should be 64bit,
> but otherwise its yet another tiny performance loss/memory
> growth, continuing the pecking to death by ducks...
IMO, the appropriate size is arch-independent
as far as aobj is used for tmpfs or such.