ipc/sem.c: change memory barrier in sem_lock() to smp_rmb()
(IPC scalability).

suse-commit: 8bd743335c35ce168afe295152b3de350fa19e28
mm: unmapped page migration avoid unmap+remap overhead (MM
performance).

suse-commit: 407efab4227901e046bf6bb5d5a0d42e71fe5109
x86/tls: Validate TLS entries to protect espfix
(bsc#909077,CVE-2014-8133).

suse-commit: e6bf930f6841bbcf45ca7f3950d657fd2c43af10