sched, nohz: Fix the idle cpu check in nohz_idle_balance
authorSuresh Siddha <suresh.b.siddha@intel.com>
Tue, 6 Dec 2011 19:19:37 +0000 (11:19 -0800)
committerIngo Molnar <mingo@elte.hu>
Tue, 6 Dec 2011 19:51:27 +0000 (20:51 +0100)
commit8a6d42d1b32ad239c28f445138ea9c19aa52dd20
treeddb25da63a4a712d48c545e1b2fce145f723b4e2
parentf8b6d1cc7dc15cf3de538b864eefaedad7a84d85
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>
kernel/sched/fair.c