HAMMER_BIGBLOCK_MASK
assert(!((blockmap->next_offset & HAMMER_BIGBLOCK_MASK) == 0 &&
(blockmap->next_offset & HAMMER_BIGBLOCK_MASK));
layer2->append_off = (int)blockmap->next_offset & HAMMER_BIGBLOCK_MASK;
offset = ((int)zone_offset & HAMMER_BIGBLOCK_MASK) + bytes;
offset = (int)next_offset & HAMMER_BIGBLOCK_MASK;
offset = (int)next_offset & HAMMER_BIGBLOCK_MASK;
if ((next_offset & HAMMER_BIGBLOCK_MASK) == 0 &&