Hi Linus,
please pull the sched/urgent fixes for v5.11.
Thx.
---
The following changes since commit 7c53f6b671f4aba70ff15e1b05148b10d58c2837:
Linux 5.11-rc3 (2021-01-10 14:34:50 -0800)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
tags/sched_urgent_for_v5.11_rc5
for you to fetch changes up to 741ba80f6f9a4702089c122129f22df9774b3e64:
sched: Relax the set_cpus_allowed_ptr() semantics (2021-01-22 15:09:44 +0100)
----------------------------------------------------------------
- Correct the marking of kthreads which are supposed to run on a specific,
single CPU vs such which are affine to only one CPU, mark per-cpu workqueue
threads as such and make sure that marking "survives" CPU hotplug. Fix CPU
hotplug issues with such kthreads.
- A fix to not push away tasks on CPUs coming online.
- Have workqueue CPU hotplug code use cpu_possible_mask when breaking affinity
on CPU offlining so that pending workers can finish on newly arrived onlined
CPUs too.
- Dump tasks which haven't vacated a CPU which is currently being unplugged.
- Register a special scale invariance callback which gets called on resume
from RAM to read out APERF/MPERF after resume and thus make the schedutil
scaling governor more precise.
----------------------------------------------------------------
Lai Jiangshan (1):
workqueue: Use cpu_possible_mask instead of cpu_active_mask to break
affinity
Peter Zijlstra (7):
sched: Don't run cpu-online with balance_push() enabled
kthread: Extract KTHREAD_IS_PER_CPU
workqueue: Tag bound workers with KTHREAD_IS_PER_CPU
workqueue: Restrict affinity change to rescuer
sched: Prepare to use balance_push in ttwu()
sched: Fix CPU hotplug / tighten is_per_cpu_kthread()
sched: Relax the set_cpus_allowed_ptr() semantics
Rafael J. Wysocki (1):
x86: PM: Register syscore_ops for scale invariance
Valentin Schneider (1):
sched/core: Print out straggler tasks in sched_cpu_dying()
arch/x86/kernel/smpboot.c | 19 ++++++++
include/linux/kthread.h | 3 ++
kernel/kthread.c | 27 ++++++++++-
kernel/sched/core.c | 111 ++++++++++++++++++++++++++++++++++++----------
kernel/sched/sched.h | 1 +
kernel/smpboot.c | 1 +
kernel/workqueue.c | 22 +++++----
7 files changed, 151 insertions(+), 33 deletions(-)
--
Regards/Gruss,
Boris.
SUSE Software Solutions Germany GmbH, GF: Felix Imendörffer, HRB 36809, AG
Nürnberg
