svn commit: r270999 - head/sys/kern

Gleb Smirnoff glebius at FreeBSD.org
Wed Sep 3 09:49:27 UTC 2014


  Mateusz, Kostik,

On Wed, Sep 03, 2014 at 10:55:23AM +0200, Mateusz Guzik wrote:
M> > Modified: head/sys/kern/kern_proc.c
M> > ==============================================================================
M> > --- head/sys/kern/kern_proc.c	Wed Sep  3 08:13:46 2014	(r270998)
M> > +++ head/sys/kern/kern_proc.c	Wed Sep  3 08:14:07 2014	(r270999)
M> > @@ -921,10 +921,11 @@ fill_kinfo_proc_only(struct proc *p, str
M> >  	kp->ki_xstat = p->p_xstat;
M> >  	kp->ki_acflag = p->p_acflag;
M> >  	kp->ki_lock = p->p_lock;
M> > -	if (p->p_pptr)
M> > +	if (p->p_pptr) {
M> >  		kp->ki_ppid = proc_realparent(p)->p_pid;
M> > -	if (p->p_flag & P_TRACED)
M> > -		kp->ki_tracer = p->p_pptr->p_pid;
M> > +		if (p->p_flag & P_TRACED)
M> > +			kp->ki_tracer = p->p_pptr->p_pid;
M> > +	}
M> >  }
M> >  
M> >  /*
M> > 
M> 
M> p_pptr must be non-NULL if P_TRACED is set. If there is no way to
M> annotate it for coverity, this change deserves a comment in the code
M> (and in retrospect previous code should have had appropriate comment as
M> well).

Thanks for explanation.

I'd suggest to leave the change in, since now it is a micro-micro-optimization :)

-- 
Totus tuus, Glebius.


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