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Date: Fri, 7 Oct 2022 09:28:17 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
Peter Zijlstra <peterz@...radead.org>,
Thomas Gleixner <tglx@...utronix.de>,
Borislav Petkov <bp@...en8.de>,
Juri Lelli <juri.lelli@...hat.com>,
Mike Galbraith <efault@....de>,
Vincent Guittot <vincent.guittot@...aro.org>,
Dietmar Eggemann <dietmar.eggemann@....com>,
Steven Rostedt <rostedt@...dmis.org>,
Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
Daniel Bristot de Oliveira <bristot@...hat.com>,
Valentin Schneider <vschneid@...hat.com>
Subject: [GIT PULL] scheduler updates for v6.1
Linus,
Please pull the latest sched/core git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-core-2022-10-07
# HEAD: fdf756f7127185eeffe00e918e66dfee797f3625 sched: Fix more TASK_state comparisons
Scheduler changes for v6.1:
- Scheduler debuggability:
- Change most occurances of BUG_ON() to WARN_ON_ONCE()
- Reorganize & fix TASK_ state comparisons, turn it into a bitmap
- Update/fix misc scheduler debugging facilities
- Load-balancing & regular scheduling:
- Improve the behavior of the scheduler in presence of lot of
SCHED_IDLE tasks - in particular they should not impact other
scheduling classes.
- Optimize task load tracking, cleanup & fixes
- Clean up & simplify misc load-balancing code
- Freezer:
- Rewrite the core freezer to behave better wrt thawing and be simpler
in general, by replacing PF_FROZEN with TASK_FROZEN & fixing/adjusting
all the fallout.
- Deadline scheduler:
- Fix the DL capacity-aware code
- Factor out dl_task_is_earliest_deadline() & replenish_dl_new_period()
- Relax/optimize locking in task_non_contending()
- Cleanups:
- Factor out the update_current_exec_runtime() helper
- Various cleanups, simplifications
Thanks,
Ingo
------------------>
Abel Wu (5):
sched/fair: Remove redundant check in select_idle_smt()
sched/fair: Avoid double search on same cpu
sched/fair: Remove useless check in select_idle_core()
sched/fair: Default to false in test_idle_cores()
sched/fair: Cleanup for SIS_PROP
Bing Huang (1):
sched/fair: Make per-cpu cpumasks static
Chengming Zhou (9):
sched/fair: Maintain task se depth in set_task_rq()
sched/fair: Remove redundant cpu_cgrp_subsys->fork()
sched/fair: Reset sched_avg last_update_time before set_task_rq()
sched/fair: Update comments in enqueue/dequeue_entity()
sched/fair: Combine detach into dequeue when migrating task
sched/fair: Fix another detach on unattached task corner case
sched/fair: Allow changing cgroup of new forked task
sched/fair: Move task sched_avg attach to enqueue_task_fair()
sched/fair: Don't init util/runnable_avg for !fair task
Dietmar Eggemann (3):
sched/core: Introduce sched_asym_cpucap_active()
sched/deadline: Make dl_cpuset_cpumask_can_shrink() capacity-aware
sched/deadline: Use sched_dl_entity's dl_density in dl_task_fits_capacity()
Hao Jia (1):
sched/fair: Remove unused parameter idle of _nohz_idle_balance()
Ingo Molnar (1):
sched/all: Change all BUG_ON() instances in the scheduler to WARN_ON_ONCE()
Peter Zijlstra (12):
sched: Rename task_running() to task_on_cpu()
freezer: Have {,un}lock_system_sleep() save/restore flags
freezer,umh: Clean up freezer/initrd interaction
sched: Change wait_task_inactive()s match_state
sched: Add TASK_ANY for wait_task_inactive()
sched/completion: Add wait_for_completion_state()
sched/wait: Add wait_event_state()
sched: Widen TAKS_state literals
freezer,sched: Rewrite core freezer logic
sched: Show PF_flag holes
sched: Fix TASK_state comparisons
sched: Fix more TASK_state comparisons
Shang XiaoJing (4):
sched: Add update_current_exec_runtime helper
sched/deadline: Add dl_task_is_earliest_deadline helper
sched/deadline: Add replenish_dl_new_period helper
sched/deadline: Move __dl_clear_params out of dl_bw lock
Vincent Guittot (3):
sched/fair: Make sure to try to detach at least one movable task
sched/fair: Cleanup loop_max and loop_break
sched/fair: Move call to list_last_entry() in detach_tasks
Xin Gao (1):
sched/core: Remove superfluous semicolon
Zhen Lei (1):
sched/debug: Print each field value left-aligned in sched_show_task()
drivers/acpi/x86/s2idle.c | 12 +-
drivers/android/binder.c | 4 +-
drivers/media/pci/pt3/pt3.c | 4 +-
drivers/powercap/idle_inject.c | 2 +-
drivers/scsi/scsi_transport_spi.c | 7 +-
fs/cifs/inode.c | 4 +-
fs/cifs/transport.c | 5 +-
fs/coredump.c | 7 +-
fs/nfs/file.c | 3 +-
fs/nfs/inode.c | 12 +-
fs/nfs/nfs3proc.c | 3 +-
fs/nfs/nfs4proc.c | 14 +--
fs/nfs/nfs4state.c | 3 +-
fs/nfs/pnfs.c | 4 +-
fs/xfs/xfs_trans_ail.c | 8 +-
include/linux/completion.h | 1 +
include/linux/freezer.h | 245 ++------------------------------------
include/linux/sched.h | 50 +++++---
include/linux/sunrpc/sched.h | 7 +-
include/linux/suspend.h | 8 +-
include/linux/umh.h | 9 +-
include/linux/wait.h | 42 +++++--
init/do_mounts_initrd.c | 10 +-
kernel/cgroup/legacy_freezer.c | 23 ++--
kernel/exit.c | 4 +-
kernel/fork.c | 5 +-
kernel/freezer.c | 133 +++++++++++++++------
kernel/futex/waitwake.c | 8 +-
kernel/hung_task.c | 16 ++-
kernel/power/hibernate.c | 35 ++++--
kernel/power/main.c | 18 +--
kernel/power/process.c | 10 +-
kernel/power/suspend.c | 12 +-
kernel/power/user.c | 24 ++--
kernel/ptrace.c | 2 +-
kernel/sched/autogroup.c | 3 +-
kernel/sched/completion.c | 12 ++
kernel/sched/core.c | 103 +++++-----------
kernel/sched/core_sched.c | 4 +-
kernel/sched/cpudeadline.c | 2 +-
kernel/sched/cpupri.c | 2 +-
kernel/sched/deadline.c | 115 +++++++++---------
kernel/sched/fair.c | 227 +++++++++++++++++------------------
kernel/sched/rt.c | 18 ++-
kernel/sched/sched.h | 65 ++++++----
kernel/sched/stop_task.c | 11 +-
kernel/signal.c | 14 +--
kernel/time/hrtimer.c | 4 +-
kernel/umh.c | 18 ++-
mm/khugepaged.c | 4 +-
net/sunrpc/sched.c | 12 +-
net/unix/af_unix.c | 8 +-
52 files changed, 616 insertions(+), 760 deletions(-)
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