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SubjectRe: [PATCH tip/core/rcu 4/5] sys_membarrier: Add expedited option
On Wed, Jul 26, 2017 at 11:30:32AM -0700, Paul E. McKenney wrote:
> The patch I posted reverts to synchronize_sched() in kernels booted with
> rcupdate.rcu_normal=1. ;-)

So boot parameters are no solution and are only slightly better than
compile time switches.

What if you have a machine that runs workloads that want both options?
partitioning and containers are somewhat popular these days and system
wide tunables don't work for them.

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