Knob to turn off _POSIX_NO_TRUNC

[Kostik Belousov]

On Tue, Apr 05, 2011 at 05:27:46PM +0200, Gary Jennejohn wrote:
> On Tue, 5 Apr 2011 17:16:31 +0300
> Kostik Belousov <kostikbel at gmail.com> wrote:
> > @@ -514,8 +519,14 @@ dirloop:
> >  		continue;
> >  	cnp->cn_namelen = cp - cnp->cn_nameptr;
> >  	if (cnp->cn_namelen > NAME_MAX) {
> > -		error = ENAMETOOLONG;
> > -		goto bad;
> > +		if (!lookup_trim) {
> 
> I would intuitively expect trimming to be enabled when the sysctl is set
> to 1, but this is exactly the opposite of that.  I personally would
> initialize it to 1.
Trimming is indeed enabled when lookup_trim is set to 1.
If lookup_trim is 0, you get ENAMETOOLONG.
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