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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: Paul E. McKenney <paulmck@kernel.org> |
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| .. | ||
| highres.rst | ||
| hpet.rst | ||
| hrtimers.rst | ||
| index.rst | ||
| no_hz.rst | ||
| timekeeping.rst | ||
| timers-howto.rst | ||