This is the 3.18.7 stable release

* tag 'v3.18.7': (99 commits)
  Linux 3.18.7
  x86: mm: move mmap_sem unlock from mm_fault_error() to caller
  x86/tlb/trace: Do not trace on CPU that is offline
  tracing: Add condition check to RCU lockdep checks
  hrtimer: Fix incorrect tai offset calculation for non high-res timer systems
  smpboot: Add missing get_online_cpus() in smpboot_register_percpu_thread()
  x86, microcode: Return error from driver init code when loader is disabled
  ARM: dts: Fix I2S1, I2S2 compatible for exynos4 SoCs
  ALSA: ak411x: Fix stall in work callback
  ASoC: sgtl5000: add delay before first I2C access
  ASoC: atmel_ssc_dai: fix start event for I2S mode
  lib/checksum.c: fix build for generic csum_tcpudp_nofold
  arm64: Fix up /proc/cpuinfo
  kconfig: Fix warning "‘jump’ may be used uninitialized"
  drm/radeon: properly set vm fragment size for TN/RL
  drm/radeon: fix the crash in test functions
  drm/radeon: fix the crash in benchmark functions
  drm/radeon: fix PLLs on RS880 and older v2
  drm/radeon: don't init gpuvm if accel is disabled (v3)
  nilfs2: fix deadlock of segment constructor over I_SYNC flag
  ...