Linux 5.4.74-rt42-rc1

Dear RT Folks,

This is the RT stable review cycle of patch 5.4.74-rt42-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 11/10/2020.

Enjoy,

-- Steve

To build 5.4.74-rt42-rc1 directly, the following patches should be applied:

http://www.kernel.org/pub/linux/kernel/v5.x/linux-5.4.tar.xz

http://www.kernel.org/pub/linux/kernel/v5.x/patch-5.4.74.xz

http://www.kernel.org/pub/linux/kernel/projects/rt/5.4/patch-5.4.74-rt42-rc1.patch.xz

You can also build from 5.4.74-rt41 by applying the incremental patch:

http://www.kernel.org/pub/linux/kernel/projects/rt/5.4/incr/patch-5.4.74-rt41-rt42-rc1.patch.xz

Changes from 5.4.74-rt41:

---

Oleg Nesterov (1):
ptrace: fix ptrace_unfreeze_traced() race with rt-lock

Sebastian Andrzej Siewior (4):
net: Properly annotate the try-lock for the seqlock
tcp: Remove superfluous BH-disable around listening_hash mm/memcontrol: Disable preemption in __mod_memcg_lruvec_state()
timers: Don't block on ->expiry_lock for TIMER_IRQSAFE

Steven Rostedt (VMware) (1):

      Linux 5.4.74-rt42-rc1

----

 include/linux/seqlock.h     |  9 ---------
 include/net/sch_generic.h   | 10 +++++++++-
 kernel/ptrace.c             | 23 +++++++++++++++--------
 kernel/time/timer.c         |  9 ++++++++-
 localversion-rt             |  2 +-
 mm/memcontrol.c             |  2 ++
 net/ipv4/inet_hashtables.c  | 19 ++++++++++++-------
 net/ipv6/inet6_hashtables.c |  5 +----
 8 files changed, 48 insertions(+), 31 deletions(-)