/*

 * Bitmasks that are kept for all the nodes.

 */

enum node_states {

    N_POSSIBLE,        /* The node could become online at some point */

    N_ONLINE,        /* The node is online */

    N_NORMAL_MEMORY,    /* The node has regular memory */

#ifdef CONFIG_HIGHMEM

    N_HIGH_MEMORY,        /* The node has regular or high memory */

#else

    N_HIGH_MEMORY = N_NORMAL_MEMORY,

#endif

    N_CPU,        /* The node has one or more cpus */

    NR_NODE_STATES

};

#define for_each_node(node)       for_each_node_state(node, N_POSSIBLE)

#if MAX_NUMNODES

#define for_each_node_state(__node, __state) \

    for_each_node_mask((__node), node_states[__state])

#else

#define for_each_node_state(node, __state) \

    for ( (node) = ; (node) == ; (node) = )

#ifdef CONFIG_NODES_SHIFT

#define NODES_SHIFT     CONFIG_NODES_SHIFT

#else

#define NODES_SHIFT     0

#endif

#define MAX_NUMNODES    (1 << NODES_SHIFT)

#if MAX_NUMNODES > 1

#define for_each_node_mask(node, mask)            \

    for ((node) = first_node(mask);            \

        (node) < MAX_NUMNODES;            \

        (node) = next_node((node), (mask)))

#else /* MAX_NUMNODES == 1 */

#define for_each_node_mask(node, mask)            \

    if (!nodes_empty(mask))                \

        for ((node) = ; (node) < ; (node)++)

#endif /* MAX_NUMNODES */