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doc: Document the rcutree.rcu_resched_ns module parameter 

This commit adds kernel-parameters.txt documentation for the
rcutree.rcu_resched_ns module parameter.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney 2023-03-21 17:33:07 -07:00
parent 51823ca651
commit fb6112497b
1 changed files with 7 additions and 0 deletions
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7
Documentation/admin-guide/kernel-parameters.txt
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@ -4861,6 +4861,13 @@
This wake_up() will be accompanied by a
WARN_ONCE() splat and an ftrace_dump().
rcutree.rcu_resched_ns= [KNL]
Limit the time spend invoking a batch of RCU
callbacks to the specified number of nanoseconds.
By default, this limit is checked only once
every 32 callbacks in order to limit the pain
inflicted by local_clock() overhead.
rcutree.rcu_unlock_delay= [KNL]
In CONFIG_RCU_STRICT_GRACE_PERIOD=y kernels,
this specifies an rcu_read_unlock()-time delay