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Commit e2c73a68 authored by Paul E. McKenney's avatar Paul E. McKenney
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rcu: Remove the RCU_FAST_NO_HZ Kconfig option



All of the uses of CONFIG_RCU_FAST_NO_HZ=y that I have seen involve
systems with RCU callbacks offloaded.  In this situation, all that this
Kconfig option does is slow down idle entry/exit with an additional
allways-taken early exit.  If this is the only use case, then this
Kconfig option nothing but an attractive nuisance that needs to go away.

This commit therefore removes the RCU_FAST_NO_HZ Kconfig option.

Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent 24eab6e1
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