only one cosmetic nit... On 01/22, Srivatsa S. Bhat wrote: > > +#define READER_PRESENT (1UL << 16) > +#define READER_REFCNT_MASK (READER_PRESENT - 1) > + > #define reader_uses_percpu_refcnt(pcpu_rwlock, cpu) \ > (ACCESS_ONCE(per_cpu(*((pcpu_rwlock)->reader_refcnt), cpu))) > > #define reader_nested_percpu(pcpu_rwlock) \ > - (__this_cpu_read(*((pcpu_rwlock)->reader_refcnt)) > 1) > + (__this_cpu_read(*((pcpu_rwlock)->reader_refcnt)) & READER_REFCNT_MASK) > > #define writer_active(pcpu_rwlock) \ > (__this_cpu_read(*((pcpu_rwlock)->writer_signal)))
I think this all can go to lib/percpu-rwlock.c. Nobody needs to know these implementation details. Oleg. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
