[PATCH RT 00/32] Linux 4.19.94-rt39-rc1

Steven Rostedt
2020-01-17T17:41:30Z

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Dear RT Folks,

This is the RT stable review cycle of patch 4.19.94-rt39-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 1/20/2020.

Enjoy,

-- Steve

To build 4.19.94-rt39-rc1 directly, the following patches should be applied:

http://www.kernel.org/pub/linux/kernel/v4.x/linux-4.19.tar.xz

http://www.kernel.org/pub/linux/kernel/v4.x/patch-4.19.94.xz

http://www.kernel.org/pub/linux/kernel/projects/rt/4.19/patch-4.19.94-rt39-rc1.patch.xz

You can also build from 4.19.94-rt38 by applying the incremental patch:

http://www.kernel.org/pub/linux/kernel/projects/rt/4.19/incr/patch-4.19.94-rt38-rt39-rc1.patch.xz

Changes from 4.19.94-rt38:

---

Clark Williams (1):
thermal/x86_pkg_temp: make pkg_temp_lock a raw spinlock

Daniel Wagner (1):
lib/smp_processor_id: Adjust check_preemption_disabled()

Julien Grall (4):
hrtimer: Use READ_ONCE to access timer->base in hrimer_grab_expiry_lock()
hrtimer: Don't grab the expiry lock for non-soft hrtimer
hrtimer: Prevent using hrtimer_grab_expiry_lock() on migration_base
lib/ubsan: Don't seralize UBSAN report

Juri Lelli (1):
sched/deadline: Ensure inactive_timer runs in hardirq context

Liu Haitao (1):
kmemleak: Change the lock of kmemleak_object to raw_spinlock_t

Peter Zijlstra (1):
locking/rtmutex: Clean ->pi_blocked_on in the error case

Scott Wood (7):
sched: migrate_dis/enable: Use sleeping_lock…() to annotate sleeping points
sched: __set_cpus_allowed_ptr: Check cpus_mask, not cpus_ptr
sched: Remove dead __migrate_disabled() check
sched: migrate disable: Protect cpus_ptr with lock
sched: migrate_enable: Use select_fallback_rq()
sched: Lazy migrate_disable processing
sched: migrate_enable: Use stop_one_cpu_nowait()

Sebastian Andrzej Siewior (13):
i2c: exynos5: Remove IRQF_ONESHOT
i2c: hix5hd2: Remove IRQF_ONESHOT
dma-buf: Use seqlock_t instread disabling preemption
x86: preempt: Check preemption level before looking at lazy-preempt
hrtimer: Add a missing bracket and hide `migration_base' on !SMP
posix-timers: Unlock expiry lock in the early return
futex: Make the futex_hash_bucket spinlock_t again and bring back its old state
Revert "cpufreq: drop K8's driver from beeing selected"
Revert "ARM: Initialize split page table locks for vector page"
x86/fpu: Don't cache access to fpu_fpregs_owner_ctx
locking: Make spinlock_t and rwlock_t a RCU section on RT
sched/core: migrate_enable() must access takedown_cpu_task on !HOTPLUG_CPU
sched: migrate_enable: Busy loop until the migration request is completed

Steven Rostedt (VMware) (1):
Linux 4.19.94-rt39-rc1

Thomas Gleixner (1):
KVM: arm/arm64: Let the timer expire in hardirq context on RT

Waiman Long (1):
lib/smp_processor_id: Don't use cpumask_equal()

----
arch/arm/kernel/process.c | 24 ---
arch/x86/include/asm/fpu/internal.h | 2 +-
arch/x86/include/asm/preempt.h | 2 +
drivers/cpufreq/Kconfig.x86 | 2 +-
drivers/dma-buf/dma-buf.c | 8 +-
drivers/dma-buf/reservation.c | 43 ++---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 6 +-
drivers/gpu/drm/i915/i915_gem.c | 10 +-
drivers/i2c/busses/i2c-exynos5.c | 4 +-
drivers/i2c/busses/i2c-hix5hd2.c | 3 +-
drivers/thermal/x86_pkg_temp_thermal.c | 24 +--
include/linux/cpu.h | 4 -
include/linux/reservation.h | 4 +-
include/linux/sched.h | 11 +-
include/linux/stop_machine.h | 2 +
init/init_task.c | 4 +
kernel/cpu.c | 103 ++++------
kernel/futex.c | 230 +++++++++++++----------
kernel/locking/rtmutex.c | 114 ++++++++---
kernel/locking/rtmutex_common.h | 3 +
kernel/locking/rwlock-rt.c | 6 +
kernel/sched/core.c | 211 +++++++++------------
kernel/sched/deadline.c | 4 +-
kernel/sched/sched.h | 4 +
kernel/stop_machine.c | 7 +-
kernel/time/hrtimer.c | 14 +-
kernel/time/posix-cpu-timers.c | 4 +-
lib/smp_processor_id.c | 7 +-
lib/ubsan.c | 64 +++----
localversion-rt | 2 +-
mm/kmemleak.c | 72 +++----
virt/kvm/arm/arch_timer.c | 6 +-
32 files changed, 512 insertions(+), 492 deletions(-)