On Thursday 02 May 2002 10:50, Roman Zippel wrote:
> On Thu, 2 May 2002, Andrea Arcangeli wrote:
> > What I
> > care about is not to clobber the common code with additional overlapping
> > common code abstractions.
> Just to throw in an alternative: On m68k we map currently everything
> together into a single virtual area. This means the virtual<->physical
> conversion is a bit more expensive and mem_map is simply indexed by the
> the virtual address.
Are you talking about mm_ptov and friends here? What are the loops for?
Could you please describe the most extreme case of physical discontiguity
> It works nicely, it just needs two small patches in the initializition
> code, which aren't integrated yet. I think it's very close to what Daniel
> wants, only that the logical and virtual address are identical.
Yes, since logical and virtual kernel addresses in config_nonlinear differ
only by a constant (PAGE_OFFSET) then setting the constant to zero gives
me your case.
-- Daniel - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to firstname.lastname@example.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Tue May 07 2002 - 22:00:13 EST