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:

quoted

quoted

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?

No it doesn't mix .unlikely with .text, .unlikely is all in one place.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only