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authorDavid S. Miller <davem@davemloft.net>2014-06-01 21:58:02 -0700
committerDavid S. Miller <davem@davemloft.net>2014-06-01 21:58:02 -0700
commitee39facbf82e73e468c504d2b40e83e2d223c28c (patch)
tree802451ae11344f94f66a8b922a5418095707517e /lib
parent2a82e40d6b66373498bf937e31b249f17dc1105a (diff)
net: Revert mlx4 cpumask changes.
This reverts commit 70a640d0dae3a9b1b222ce673eb5d92c263ddd61 ("net/mlx4_en: Use affinity hint") and commit c8865b64b05b2f4eeefd369373e9c8aeb069e7a1 ("cpumask: Utility function to set n'th cpu - local cpu first") because these changes break the build when SMP is disabled amongst other things. Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib')
-rw-r--r--lib/cpumask.c64
1 files changed, 0 insertions, 64 deletions
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 14049a96f04a..b810b753c607 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -163,68 +163,4 @@ void __init free_bootmem_cpumask_var(cpumask_var_t mask)
{
memblock_free_early(__pa(mask), cpumask_size());
}
-
-/**
- * cpumask_set_cpu_local_first - set i'th cpu with local numa cpu's first
- *
- * @i: index number
- * @numa_node: local numa_node
- * @dstp: cpumask with the relevant cpu bit set according to the policy
- *
- * This function sets the cpumask according to a numa aware policy.
- * cpumask could be used as an affinity hint for the IRQ related to a
- * queue. When the policy is to spread queues across cores - local cores
- * first.
- *
- * Returns 0 on success, -ENOMEM for no memory, and -EAGAIN when failed to set
- * the cpu bit and need to re-call the function.
- */
-int cpumask_set_cpu_local_first(int i, int numa_node, cpumask_t *dstp)
-{
- cpumask_var_t mask;
- int cpu;
- int ret = 0;
-
- if (!zalloc_cpumask_var(&mask, GFP_KERNEL))
- return -ENOMEM;
-
- i %= num_online_cpus();
-
- if (!cpumask_of_node(numa_node)) {
- /* Use all online cpu's for non numa aware system */
- cpumask_copy(mask, cpu_online_mask);
- } else {
- int n;
-
- cpumask_and(mask,
- cpumask_of_node(numa_node), cpu_online_mask);
-
- n = cpumask_weight(mask);
- if (i >= n) {
- i -= n;
-
- /* If index > number of local cpu's, mask out local
- * cpu's
- */
- cpumask_andnot(mask, cpu_online_mask, mask);
- }
- }
-
- for_each_cpu(cpu, mask) {
- if (--i < 0)
- goto out;
- }
-
- ret = -EAGAIN;
-
-out:
- free_cpumask_var(mask);
-
- if (!ret)
- cpumask_set_cpu(cpu, dstp);
-
- return ret;
-}
-EXPORT_SYMBOL(cpumask_set_cpu_local_first);
-
#endif

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