[PATCH] powerpc: Allow mem=x cmdline to work with 4G+

[Michael Ellerman]

On Fri, 2009-05-08 at 17:19 -0500, Becky Bruce wrote:
> We're currently choking on mem=4g (and above) due to memory_limit
> being specified as an unsigned long. Make memory_limit
> phys_addr_t to fix this.

Can we not just make it u64 to save the casts?

cheers
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