locktorture: Add acq_writer_lim to complain about long acquistion times

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This commit adds a locktorture.acq_writer_lim module parameter that
specifies the maximum number of jiffies that is expected to be consumed
by write-side lock acquisition.  If this limit is exceeded, a WARN_ONCE()
causes a splat.  Note that this limit applies to the main lock acquisition
only, not to any nested acquisitions.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>

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Paul E. McKenney 2023-08-02 16:32:06 -07:00 • committed by Frederic Weisbecker

parent 84cee9e72e

commit e3bdaefbcc

1 changed files with 13 additions and 2 deletions

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kernel/locking/locktorture.c

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