On Wed, Aug 10, 2016 at 12:29:29AM +0200, Arnd Bergmann wrote: > On Monday, August 8, 2016 8:16:05 PM CEST Andi Kleen wrote: > > > I don't understand what led Andi Kleen to also move .text.hot and > > > .text.unlikely together with .text [2], but this may have > > > been a related issue. > > > > > > [2] https://lkml.org/lkml/2015/7/19/377 > > > > The goal was just to move .hot and .unlikely all together, so that > > they are clustered and use the minimum amount of cache. On x86 doesn't > > matter where they are exactly, as long as each is together. > > If they are not explicitely listed then the linker interleaves > > them with the normal text, which defeats the purpose. > > I still don't see it, my reading of your patch is that you did > the opposite, by changing the description that puts all .text.hot > in front of .text, and all .text.unlikely after exit.text into > one that mixes them with .text. What am I missing here? .text.hot is actually not used, the critical part is .text.unlikely which was not listed and was interleaved before the patch. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
