rcu: Start RCU kthreads in TASK_INTERRUPTIBLE state

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Upon creation, kthreads are in TASK_UNINTERRUPTIBLE state, which can
result in softlockup warnings.  Because some of RCU's kthreads can
legitimately be idle indefinitely, start them in TASK_INTERRUPTIBLE
state in order to avoid those warnings.

Suggested-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Paul E. McKenney 2011-05-25 13:42:06 -07:00 • committed by Ingo Molnar

parent 08bca60a69

commit cc3ce5176d

2 changed files with 3 additions and 0 deletions

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kernel/rcutree.c

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kernel/rcutree_plugin.h

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