rcutorture: Add ability to limit callback-flood intensity

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The RCU tasks flavors of RCU now need concurrent callback flooding to
test their ability to switch between single-queue mode and per-CPU queue
mode, but their lack of heavy-duty forward-progress features rules out
the use of rcutorture's current callback-flooding code.  This commit
therefore provides the ability to limit the intensity of the callback
floods using a new ->cbflood_max field in the rcu_operations structure.
When this field is zero, there is no limit, otherwise, each callback-flood
kthread allocates at most ->cbflood_max callbacks.

Cc: Neeraj Upadhyay <neeraj.iitr10@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

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Paul E. McKenney 2021-11-23 11:53:52 -08:00

parent 82e310033d

commit 613b00fbe6

1 changed files with 14 additions and 5 deletions

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kernel/rcu/rcutorture.c

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