Re: [PATCH 1/1] threads_max: Simple lockout prevention patch

[Pekka Enberg]

On 4/24/06, Al Boldi <a1426z@xxxxxxxxx> wrote:
> > > Like so?
> > >         if (nr_threads >= max_threads)
> > >                 if (p->pid != su_pid)
> > >                         goto bad_fork_cleanup_count;
> >
> > It's better to combine the two if statements into one with &&.

On Mon, 2006-04-24 at 16:53 +0300, Al Boldi wrote:
> I thought of combining them too, but was afraid of some compile optimization 
> issues.  Remember, this code-path is executed for each and every fork in the 
> system, thus it's highly performance sensitive.

There shouldn't be any difference. What compiler optimizations are you
referring to? Did you study the generated object code?

				Pekka

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