rcutorture: Add call_rcu() flooding forward-progress tests

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This commit adds a call_rcu() flooding loop to the forward-progress test.
This emulates tight userspace loops that force call_rcu() invocations,
for example, the infamous loop containing close(open()) that instigated
the addition of blimit.  If RCU does not make sufficient forward progress
in invoking the resulting flood of callbacks, rcutorture emits a warning.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

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Paul E. McKenney 2018-08-15 15:32:51 -07:00 • committed by Paul E. McKenney

parent eaaf055f27

commit 4871848531

1 changed files with 127 additions and 2 deletions

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kernel/rcu/rcutorture.c

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