> * Denys Vlasenko <dvlas...@redhat.com> wrote: > > > > So there are now +2 instructions (5 instead of 3) in the > > > system_call path, but there are -2 instructions in the SYSRETQ > > > path, > > > > Unfortunately, no. [...] > > So I assumed that it was an equivalent transformation, given that > none of the changelogs spelled out the increase in overhead ...
Also, for future reference, you need to spell out performance costs of fast path patches very clearly - and that wasn't done here. That's a big no-no, please don't do it again ... Thanks, Ingo -- 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/