[PATCH v3 09/10] sched/fair: disable stealing if too many NUMA nodes

The STEAL feature causes regressions on hackbench on larger NUMA systems, so disable it on systems with more than sched_steal_node_limit nodes (default 2). Note that the feature remains enabled as seen in features.h and /sys/kernel/debug/sched_features, but stealing is only performed if nodes <=

[PATCH v3 09/10] sched/fair: disable stealing if too many NUMA nodes

The STEAL feature causes regressions on hackbench on larger NUMA systems, so disable it on systems with more than sched_steal_node_limit nodes (default 2). Note that the feature remains enabled as seen in features.h and /sys/kernel/debug/sched_features, but stealing is only performed if nodes <=