ipc: close open coded spin lock calls

Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --cc ipc/msg.c
Simple merge

diff --cc ipc/sem.c
Simple merge

diff --cc ipc/shm.c
Simple merge

diff --cc ipc/util.h
Simple merge