Re: [PATCH] Use MM_VM_SIZE in exit_mmap

[Anton Blanchard]

Hi,

> I don't think Anton can count.  (and for some reason I seem to be missing
> his mail at the moment.)
> 
> include/asm-arm/pgtable.h:#define FIRST_USER_PGD_NR     1
> 
> there's two.  FIRST_USER_PGD_NR was created specifically for ARM because
> many of our CPUs place their hardware vector tables at *virtual* address
> zero.  Unmapping this virtual page would be rather bad for the system -
> consider the effect of unmapping the code for *all* CPU exceptions.

It does look like I have trouble counting past 1 :) Lets forget that
proposal, it was just a minor cleanup anyway.

Anton
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