On Fri, 7 Jul 2006, Chuck Ebbert wrote:
>
> From: Stephane Eranian <[email protected]>
>
> Use thread info flags to track use of debug registers and IO bitmaps.
>
> - add TIF_DEBUG to track when debug registers are active
> - add TIF_IO_BITMAP to track when I/O bitmap is used
> - modify __switch_to() to use the new TIF flags
Can you explain what the advantages of this are?
I don't see it. It's just creating new state to describe state that we
already had, and as far as I can tell, it's just a way to potentially have
more new bugs thanks to the new state getting out of sync with the old
one?
Linus
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