[peruser] Fix graceful restarts on busy servers with multiple processors

[Alexey Vlasov]

Hi Lazy.

On Wed, May 21, 2008 at 12:20:29PM +0200, Lazy wrote:
 
> 1) Due to lack of locking multiple Multiplexers exit from poll-ing
> listening sockets and only 1 accept it, others will block on accept,
> normally this is ok
...

Unfortunately I didn't understand if you patch would fix graceful
restarts in peruser. But results (Subject: [peruser] graceful and
peruser) remained the same with only one exception - there're no
segfaults (but it can be because of the empty server).

-- 
BRGDS. Alexey Vlasov.