sched, nohz: Fix the idle cpu check in nohz_idle_balance
cpu bit in the nohz.idle_cpu_mask are reset in the first busy tick after exiting idle. So during nohz_idle_balance(), intention is to double check if the cpu that is part of the idle_cpu_mask is indeed idle before going ahead in performing idle balance for that cpu. Fix the cpu typo in the idle_cpu() check during nohz_idle_balance(). Reported-by: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1323199177.1984.12.camel@sbsiddha-desk.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -5020,7 +5020,7 @@ static void nohz_idle_balance(int this_cpu, enum cpu_idle_type idle)
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goto end;
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goto end;
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for_each_cpu(balance_cpu, nohz.idle_cpus_mask) {
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for_each_cpu(balance_cpu, nohz.idle_cpus_mask) {
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if (balance_cpu == this_cpu || !idle_cpu(this_cpu))
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if (balance_cpu == this_cpu || !idle_cpu(balance_cpu))
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continue;
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continue;
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/*
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/*
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