[PATCH] [POWERPC] Fix handling of memreserve if the range lands in highmem

[Kumar Gala]

On Jan 9, 2008, at 12:53 PM, Scott Wood wrote:

> On Wed, Jan 09, 2008 at 11:28:30AM -0600, Kumar Gala wrote:
>> 	/* reserve the sections we're already using */
>> -	for (i = 0; i < lmb.reserved.cnt; i++)
>> -		reserve_bootmem(lmb.reserved.region[i].base,
>> -				lmb_size_bytes(&lmb.reserved, i));
>> +	for (i = 0; i < lmb.reserved.cnt; i++) {
>> +		unsigned long addr = lmb.reserved.region[i].base +
>> +				     lmb_size_bytes(&lmb.reserved, i) - 1;
>> +		if (addr < total_lowmem)
>> +			reserve_bootmem(lmb.reserved.region[i].base,
>> +					lmb_size_bytes(&lmb.reserved, i));
>> +	}
>
> It looks like if the reserved area straddles the highmem boundary,  
> it'll
> only reserve the highmem portion.

Yeah, I thought about that.  I'm wondering if we should warn about  
this.. its seems like a bad thing to do.

- k