Re: [PATCH 1/4] compcache: xvmalloc memory allocator

[Pekka Enberg]

On Wed, 26 Aug 2009, Nitin Gupta wrote:
>> I went crazy. I meant 40 bits for PFN -- not 48. This 40-bit PFN should be
>> sufficient for all archs. For archs where 40 + PAGE_SHIFT < MAX_PHYSMEM_BITS
>> ramzswap will just issue a compiler error.

On Wed, Aug 26, 2009 at 7:10 PM, Christoph
Lameter<cl@xxxxxxxxxxxxxxxxxxxx> wrote:
> How about restricting the xvmalloc memory allocator to 32 bit? If I
> understand correctly xvmalloc main use in on 32 bit in order to be
> able to use HIGHMEM?

That was the main reason for a specialized allocator rather than
trying to use SLOB. However, if "xvmalloc" is merged with ramzswap, it
makes sense to use it on desktop class 64-bit machines as well.

                                Pekka
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/