[PATCH v2 tip/core/rcu 10/11] rcu: Allow expedited grace periods to be disabled at init

Expedited grace periods can speed up boot, but are undesirable in aggressive real-time systems. This commit therefore introduces a kernel parameter rcupdate.rcu_normal_after_boot that disables expedited grace periods just before init is spawned. Signed-off-by: Paul E. McKenney ---

[PATCH v2 tip/core/rcu 10/11] rcu: Allow expedited grace periods to be disabled at init

Expedited grace periods can speed up boot, but are undesirable in aggressive real-time systems. This commit therefore introduces a kernel parameter rcupdate.rcu_normal_after_boot that disables expedited grace periods just before init is spawned. Signed-off-by: Paul E. McKenney