[PATCH] Remove sys_poll() (raceless signal handler)?

[Andrew Bartlett]

This patch comes out of some work I've been doing with callcatcher, to
find dead code in Samba.  

It seems we do not need the sys_poll() wrapper, as something else
(tevent presumably) handles the creation of the signal file descriptor.

Either that, or we have a problem with the 'race-less signal handler',
as none of the signal handlers call the magic sys_select_signal()
function. 

I'm still unclear why we call poll directly, particularly in
smbd/process.c, hence why I post these patches for review, but more
particularly for comment.

Thanks,

Andrew Bartlett
-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org
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