UVM_AMAP_BUCKET
bucket = UVM_AMAP_BUCKET(&amap, slot);
if (UVM_AMAP_BUCKET(&amap, chunk.ac_baseslot) !=
startbucket = UVM_AMAP_BUCKET(amap, slotoff);
endbucket = UVM_AMAP_BUCKET(amap, slotoff + slots - 1);
if (UVM_AMAP_BUCKET(amap, chunk->ac_baseslot) !=
int bucket = UVM_AMAP_BUCKET(amap, slot);
if (UVM_AMAP_BUCKET(amap, chunk->ac_baseslot) != bucket)
int bucket = UVM_AMAP_BUCKET(amap, chunk->ac_baseslot);
UVM_AMAP_BUCKET(amap, nchunk->ac_baseslot) == bucket)