#include <linux/nodemask.h> | |
#include <linux/module.h> | |
#include <linux/random.h> | |
int __next_node_in(int node, const nodemask_t *srcp) | |
{ | |
int ret = __next_node(node, srcp); | |
if (ret == MAX_NUMNODES) | |
ret = __first_node(srcp); | |
return ret; | |
} | |
EXPORT_SYMBOL(__next_node_in); | |
#ifdef CONFIG_NUMA | |
/* | |
* Return the bit number of a random bit set in the nodemask. | |
* (returns NUMA_NO_NODE if nodemask is empty) | |
*/ | |
int node_random(const nodemask_t *maskp) | |
{ | |
int w, bit = NUMA_NO_NODE; | |
w = nodes_weight(*maskp); | |
if (w) | |
bit = bitmap_ord_to_pos(maskp->bits, | |
get_random_int() % w, MAX_NUMNODES); | |
return bit; | |
} | |
#endif |