On 29/07/2015 16:56, Michael S. Tsirkin wrote: >>>> > > > Also, document our contract with legacy userspace: when running on an >>>> > > > old kernel, you get -1 and you can assume at least 64 slots. Since 0 >>>> > > > value's left unused, let's make that mean that the current userspace >>>> > > > behaviour (trial and error) is required, just in case we want it >>>> > > > back. >>> > > >>> > > What's wrong with reading the module parameter value? It's there in >>> > > sysfs ... >> > for most cases it would work but distro doesn't have to mount >> > sysfs under /sys > If it wants to rewrite all userspace, sure it doesn't.
I agree, on the other hand it doesn't seem far fetched to have a per-fd maximum in the future. So I think this patch is more future-proof. Paolo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
