Now that for_each_numa_hop_mask() is reverted, also revert reference to
it in the comment to cpumask_local_spread().
This partially reverts commit 2ac4980c57f5 ("lib/cpumask: update comment
for cpumask_local_spread()")
Signed-off-by: Yury Norov <yury.norov@xxxxxxxxx>
Signed-off-by: Yury Norov <ynorov@xxxxxxxxxx>
---
lib/cpumask.c | 21 ---------------------
1 file changed, 21 deletions(-)
diff --git a/lib/cpumask.c b/lib/cpumask.c
index a7fd02b5ae26..d341fb71a8a9 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -117,27 +117,6 @@ void __init free_bootmem_cpumask_var(cpumask_var_t mask)
*
* Returns online CPU according to a numa aware policy; local cpus are returned
* first, followed by non-local ones, then it wraps around.
- *
- * For those who wants to enumerate all CPUs based on their NUMA distances,
- * i.e. call this function in a loop, like:
- *
- * for (i = 0; i < num_online_cpus(); i++) {
- * cpu = cpumask_local_spread(i, node);
- * do_something(cpu);
- * }
- *
- * There's a better alternative based on for_each()-like iterators:
- *
- * for_each_numa_hop_mask(mask, node) {
- * for_each_cpu_andnot(cpu, mask, prev)
- * do_something(cpu);
- * prev = mask;
- * }
- *
- * It's simpler and more verbose than above. Complexity of iterator-based
- * enumeration is O(sched_domains_numa_levels * nr_cpu_ids), while
- * cpumask_local_spread() when called for each cpu is
- * O(sched_domains_numa_levels * nr_cpu_ids * log(nr_cpu_ids)).
*/
unsigned int cpumask_local_spread(unsigned int i, int node)
{
--
2.39.2
