The patch looks a bit strange - I'm sure you're fixing a bug, but it also
looks like a fairly unmaintainable way of doing so.
I'd much prefer an approach where you leave the TF bit completely alone,
and then when you get a debug trap you look at whether the process is
being debugged or not, and if not you just ignore the trap and clear TF on
return. What way it's much more obvious at least to me what's up (call it
"lazy TF clearing" ;)
Ok?
Linus
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