On Wed, 2014-02-26 at 09:40 +1100, Benjamin Herrenschmidt wrote: > On Tue, 2014-02-25 at 13:29 +0530, Deepthi Dharwar wrote: > > We currently do not use smt-snooze-delay in the kernel. > > The sysfs entries needs to be retained until we do a clean up > > ppc64_cpu > > util that uses these entries to determine SMT, > > clean up patch for this has already been posted out by Prerna. > > Once, we have the ppc64_cpu changes in, we can look to clean up these > > parts from the kernel. > > We generally shouldn't change user visible interfaces. > > People still have old versions of ppc64_cpu, we must not break them
Yeah we can't remove the file entirely, at least for a few more years. ppc64_cpu should never have used that file to determine if a cpu existed, but it did, so we're stuck with it. What we can do is remove the unused percpu, and just leave the file in sysfs, and have it print a warning when anyone touches it. cheers -- 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/
