rcu: Allow expedited grace periods to be disabled at init

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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 <paulmck@linux.vnet.ibm.com>

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Paul E. McKenney 2015-11-25 18:56:00 -08:00

parent 967dcb8fe6

commit 3e42ec1aa7

2 changed files with 10 additions and 0 deletions

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5

Documentation/kernel-parameters.txt

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5

kernel/rcu/update.c

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