On Wed, Aug 06, 2014 at 01:22:02PM -0400, Waiman Long wrote:
> The queued rwlock does not support the use of recursive read-lock in
> the process context. With changes in the lockdep code to check and
> disallow recursive read-lock, it is also necessary for the locking
> selftest to be updated to change the process context recursive read
> locking results from SUCCESS to FAILURE for rwlock.
> +static void rlock_AHA1(void)
> +{
> + RL(X1);
> + HARDIRQ_ENTER();
> + RL(X1); // this one should NOT fail
> + HARDIRQ_EXIT();
> +}
> +
> +static void rlock_AHA1B(void)
> +{
> + RL(X1);
> + HARDIRQ_ENTER();
> + RL(X2); // this one should NOT fail
> + HARDIRQ_EXIT();
> +}
> +
> +static void rlock_ASAHA1(void)
> +{
> + RL(X1);
> + SOFTIRQ_ENTER();
> + RL(X1); // this one should NOT fail
> + HARDIRQ_ENTER();
> + RL(X1); // this one should NOT fail
> + HARDIRQ_EXIT();
> + SOFTIRQ_EXIT();
> }Thanks!
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