Linux 4.9.65-rt57-rc2

Dear RT Folks,

This is the RT stable review cycle of patch 4.9.65-rt57-rc2.

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 12/5/2017.

Enjoy,

-- Steve

To build 4.9.65-rt57-rc2 directly, the following patches should be applied:

http://www.kernel.org/pub/linux/kernel/v4.x/linux-4.9.tar.xz

http://www.kernel.org/pub/linux/kernel/v4.x/patch-4.9.65.xz

http://www.kernel.org/pub/linux/kernel/projects/rt/4.9/patch-4.9.65-rt57-rc2.patch.xz

You can also build from 4.9.65-rt56 by applying the incremental patch:

http://www.kernel.org/pub/linux/kernel/projects/rt/4.9/incr/patch-4.9.65-rt56-rt57-rc2.patch.xz

Changes from 4.9.65-rt56:

Removed backport of: posixtimer: init timer only with CONFIG_POSIX_TIMERS enabled Added backport of: net: use trylock in icmp_sk

---

Alex Shi (1):
cpu_pm: replace raw_notifier to atomic_notifier

Mike Galbraith (2):
rtmutex: Fix lock stealing logic
kernel/hrtimer/hotplug: don't wake ktimersoftd while holding the hrtimer base lock

Sebastian Andrzej Siewior (10):
Revert "fs: jbd2: pull your plug when waiting for space"
PM / CPU: replace raw_notifier with atomic_notifier (fixup) kernel/hrtimer: migrate deferred timer on CPU down
net: take the tcp_sk_lock lock with BH disabled kernel/hrtimer: don't wakeup a process while holding the hrtimer base lock
Bluetooth: avoid recursive locking in hci_send_to_channel() iommu/amd: Use raw_cpu_ptr() instead of get_cpu_ptr() for ->flush_queue rt/locking: allow recursive local_trylock()
locking/rtmutex: don't drop the wait_lock twice
net: use trylock in icmp_sk

Steven Rostedt (VMware) (2):
Revert "memcontrol: Prevent scheduling while atomic in cgroup code" Linux 4.9.65-rt57-rc2

----

 drivers/iommu/amd_iommu.c |  4 +--
 fs/jbd2/checkpoint.c      |  2 --
 include/linux/locallock.h |  9 ++++++
 kernel/cpu_pm.c           | 50 +++++++++-----------------------
 kernel/locking/rtmutex.c  | 74 +++++++++++++++++++++++------------------------
 kernel/time/hrtimer.c     | 35 ++++++++++++++++------
 localversion-rt           |  2 +-
 mm/memcontrol.c           | 13 ++++-----
 net/bluetooth/hci_sock.c  | 17 +++++++----
 net/ipv4/icmp.c           |  6 +++-
 net/ipv4/tcp_ipv4.c       |  8 ++---
 11 files changed, 112 insertions(+), 108 deletions(-)