On 7/25/21 9:12 PM, Vlastimil Babka wrote: > + /* > + * On !RT we just want to disable preemption, on RT we need the lock > + * for real. This happens to match local_lock() semantics. > + */ > + local_lock(&s->cpu_slab->lock); OK I realized (and tglx confirmed) that this will blow up on !RT + lockdep if interrupted by ___slab_alloc() that will do local_lock_irqsave(). So back to #ifdefs it is. But should work as-is for RT testing.
