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Date: Sat, 17 Sep 2016 15:20:21 +0300
From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Joe Perches <joe@perches.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
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Subject: Re: [REGRESSION] RLIMIT_DATA crashes named
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On Sat, Sep 17, 2016 at 03:09:09PM +0300, Konstantin Khlebnikov wrote:
> >
> > Seems I don't understand the bottom unlikely...
> 
> This is gcc extrension:  https://gcc.gnu.org/onlinedocs/gcc/Statement-Exprs.html
> Here macro works as a function which returns bool

no, no, I know for what unlikely extension stand for.
it was just hard to obtain from without the context.
this extension implies someone calls for
if (printk_periodic()) right?