On Thu, Jul 30, 2015 at 1:21 AM, Eric W. Biederman <[email protected]> wrote: > Two quick questions. > > - What motivates this work? Are you seeing lots of > parallel reads on proc?
Well, yes, benchmark looks like very synthetic. But even gcc opens /proc/meminfo, so might as well apply the change. Patch looks like obviously correct to me. > - Why not rcu? Additions and removal of proc generic > files is very rare. Conversion to rcu for reads should > perform better and not take much more work. If you want proc locking to be understood by ~10 people on the planet then yes, there is RCU. :-) -- 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/
