Messages in this thread | | | Date | Wed, 26 Aug 2009 19:19:40 +0300 | Subject | Re: [PATCH 1/4] compcache: xvmalloc memory allocator | From | 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@linux-foundation.org> 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
| |