Messages in this thread | | | Date | Fri, 13 Mar 1998 10:02:18 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: [patch] x86, generic speedup, do we need 'cld'? |
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On Fri, 13 Mar 1998, MOLNAR Ingo wrote: > > i've noticed that we do 'cld' way too often. Maybe there is some > nonobvious reason to use it, but isnt it so that all kernel entry points > do a cld currently.
This should be fine as long as you verify that all kernel entry points do have the cld - which I think they do. I'm nervous about it, though, because even if there _is_ a missing cld somewhere, it would very seldom show up as a bug (because almost nothing sets cld, so even with a missing cld it _usually_ does the right thing).
Finding potential bugs brought about by this change would be fairly impossible, which is why I don't feel like doing it..
Linus
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