Linux 4.4.27-rt38-rc1

Dear RT Folks,

This is the RT stable review cycle of patch 4.4.27-rt38-rc1.

Please scream at me if I messed something up. Please test the patches too.

The -rc release will be uploaded to kernel.org and will be deleted when the final release is out. This is just a review release (or release candidate).

The pre-releases will not be pushed to the git repository, only the final release is.

If all goes well, this patch will be converted to the next main release on 11/2/2016.

Enjoy,

-- Steve

To build 4.4.27-rt38-rc1 directly, the following patches should be applied:

http://www.kernel.org/pub/linux/kernel/v4.x/linux-4.4.tar.xz

http://www.kernel.org/pub/linux/kernel/v4.x/patch-4.4.27.xz

http://www.kernel.org/pub/linux/kernel/projects/rt/4.4/patch-4.4.27-rt38-rc1.patch.xz

You can also build from 4.4.27-rt37 by applying the incremental patch:

http://www.kernel.org/pub/linux/kernel/projects/rt/4.4/incr/patch-4.4.27-rt37-rt38-rc1.patch.xz

Changes from 4.4.27-rt37:

---

Mike Galbraith (1):
ftrace: Fix trace header alignment

Sebastian Andrzej Siewior (4):
kernel/futex: don't deboost too early
zsmalloc: turn that get_cpu_light() into a local_lock() x86/apic: get rid of "warning: 'acpi_ioapic_lock' defined but not used"
kbuild: add -fno-PIE

Steven Rostedt (Red Hat) (1):

      Linux 4.4.27-rt38-rc1

----

 Makefile                    |  2 +-
 arch/x86/kernel/acpi/boot.c |  2 ++
 include/linux/spinlock.h    |  6 +++++
 include/linux/spinlock_rt.h |  2 ++
 kernel/futex.c              |  2 +-
 kernel/locking/rtmutex.c    | 53 +++++++++++++++++++++++++++++++++++++++------
 kernel/trace/trace.c        | 32 +++++++++++++--------------
 localversion-rt             |  2 +-
 mm/zsmalloc.c               |  6 +++--
 9 files changed, 79 insertions(+), 28 deletions(-)