Re: [PATCH 0/3] tracepoints: delay argument evaluation

[Roland McGrath]

> But I think we should be asking GCC to get fixed. Since inline functions
> don't act like a compiler barrier anyway, they might as well not force
> argument evaluation either.

I quite agree.  I'm all for better compilation.  However, usual practice
in the kernel has been to complain about introducing C code sequences
that add a few instructions when compiled by compilers over 5 years old,
let alone the very latest one.  I think it was the expectation of that
sort of sensitive reaction to the hot-path impact of unused tracepoints
that motivated Jason's attempt at microoptimization.


Thanks,
Roland
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