GENRADIX_NODE_SHIFT
while (n && shift > GENRADIX_NODE_SHIFT) {
#define GENRADIX_NODE_SIZE (1U << GENRADIX_NODE_SHIFT)
DIV_ROUND_UP(BITS_PER_LONG - GENRADIX_NODE_SHIFT, GENRADIX_ARY_SHIFT)
return GENRADIX_NODE_SHIFT + GENRADIX_ARY_SHIFT * depth;
iter->pos = (iter->offset >> GENRADIX_NODE_SHIFT) *
iter->pos = (iter->offset >> GENRADIX_NODE_SHIFT) * objs_per_page;
iter->pos = (iter->offset >> GENRADIX_NODE_SHIFT) * objs_per_page;