Configurable NUMA node memory size

Hi,

following the requests from Xavier and Jesse I introduced a configuration parameter for the maximum memory per NUMA node. The DIG_BANKSHIFT is set accordingly, the current choices are:

         512MB/bank:  16GB/node,
        2048MB/bank:  64GB/node,
        8192MB/bank: 256GB/node.

The patch is for 2.5.50+ia64. Please consider applying it.

Thanks,
Erich

Erich, could you please check out the discontig bits (mmzone.h) in the SN update patch I posted today? I renamed DIG_BANKSHIFT to just BANKSHIFT so it could be reused, but I'm not sure if I did it correctly.

Quoted 3 lines · Jesse Barnes

Erich, could you please check out the discontig bits (mmzone.h) in the SN update patch I posted today? I renamed DIG_BANKSHIFT to just BANKSHIFT so it could be reused, but I'm not sure if I did it correctly.

Looks good. Renaming is fine with me. I guess you'll have to rediff the patch for David in case he takes the configurable banksize in.