lkml.org 
[lkml]   [2008]   [Jul]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC 00/15] x86_64: Optimize percpu accesses
Eric W. Biederman wrote:
>
> But we can pick an arbitrary point where %gs points at.
>
> Hmm. This whole thing is even sillier then I thought.
> Why can't we access per cpu vars as:
> %gs:(per_cpu__var - __per_cpu_start) ?
>
> If we can subtract constants and allow the linker to perform that resolution
> at link. A zero based per cpu segment becomes a moot issue.
>

And then we're back here again!

Supposedly the linker buggers up, although we don't have conclusive
evidence...

-hpa



\
 
 \ /
  Last update: 2008-07-09 23:25    [W:0.752 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site