rcu: Avoid spurious RCU CPU stall warnings

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If a given CPU avoids the idle loop but also avoids starting a new
RCU grace period for a full minute, RCU can issue spurious RCU CPU
stall warnings.  This commit fixes this issue by adding a check for
ongoing grace period to avoid these spurious stall warnings.

Reported-by: Becky Bruce <bgillbruce@gmail.com>
Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

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Paul E. McKenney 2012-08-13 11:17:06 -07:00 • committed by Paul E. McKenney

parent c8020a67e6

commit c96ea7cfdd

1 changed files with 2 additions and 1 deletions

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kernel/rcutree.c

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