Version:  2.0.40 2.2.26 2.4.37 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10

Linux/lib/nodemask.c

  1 #include <linux/nodemask.h>
  2 #include <linux/module.h>
  3 #include <linux/random.h>
  4 
  5 int __next_node_in(int node, const nodemask_t *srcp)
  6 {
  7         int ret = __next_node(node, srcp);
  8 
  9         if (ret == MAX_NUMNODES)
 10                 ret = __first_node(srcp);
 11         return ret;
 12 }
 13 EXPORT_SYMBOL(__next_node_in);
 14 
 15 #ifdef CONFIG_NUMA
 16 /*
 17  * Return the bit number of a random bit set in the nodemask.
 18  * (returns NUMA_NO_NODE if nodemask is empty)
 19  */
 20 int node_random(const nodemask_t *maskp)
 21 {
 22         int w, bit = NUMA_NO_NODE;
 23 
 24         w = nodes_weight(*maskp);
 25         if (w)
 26                 bit = bitmap_ord_to_pos(maskp->bits,
 27                         get_random_int() % w, MAX_NUMNODES);
 28         return bit;
 29 }
 30 #endif
 31 

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us