• Paul E. McKenney's avatar
    rcu: Remove the RCU_FAST_NO_HZ Kconfig option · e2c73a68
    Paul E. McKenney authored
    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>
    e2c73a68
stallwarn.rst 17.1 KB