[PATCH 0/20 V3] Misc cleanups for ipc

[Manfred Spraul]

Hi all,

Updated series. The series got longer, because I merged all patches
from Kees.

Main changes are:
- sems[] instead of sem[0].
- Immediately use BUILD_BUG_ON()
- Immediately move the memset() to avoid crashing with SEM_UNDO.
- Use rcu for every security_xx_free(), even if ipc_addid() was not 
  successful

@Andrew: Could you add them again to your tree?

@Michael: 
Should we update man semctl(2)?
Several years ago, I did a review and found that sem_ctime is only
for Coherent the time of the last change...

http://calculix-rpm.sourceforge.net/sysvsem.html

--
        Manfred