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9a7e0a90a4
- Revert the printk format based wchan() symbol resolution as it can leak
the raw value in case that the symbol is not resolvable.
- Make wchan() more robust and work with all kind of unwinders by
enforcing that the task stays blocked while unwinding is in progress.
- Prevent sched_fork() from accessing an invalid sched_task_group
- Improve asymmetric packing logic
- Extend scheduler statistics to RT and DL scheduling classes and add
statistics for bandwith burst to the SCHED_FAIR class.
- Properly account SCHED_IDLE entities
- Prevent a potential deadlock when initial priority is assigned to a
newly created kthread. A recent change to plug a race between cpuset and
__sched_setscheduler() introduced a new lock dependency which is now
triggered. Break the lock dependency chain by moving the priority
assignment to the thread function.
- Fix the idle time reporting in /proc/uptime for NOHZ enabled systems.
- Improve idle balancing in general and especially for NOHZ enabled
systems.
- Provide proper interfaces for live patching so it does not have to
fiddle with scheduler internals.
- Add cluster aware scheduling support.
- A small set of tweaks for RT (irqwork, wait_task_inactive(), various
scheduler options and delaying mmdrop)
- The usual small tweaks and improvements all over the place
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Merge tag 'sched-core-2021-11-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Thomas Gleixner:
- Revert the printk format based wchan() symbol resolution as it can
leak the raw value in case that the symbol is not resolvable.
- Make wchan() more robust and work with all kind of unwinders by
enforcing that the task stays blocked while unwinding is in progress.
- Prevent sched_fork() from accessing an invalid sched_task_group
- Improve asymmetric packing logic
- Extend scheduler statistics to RT and DL scheduling classes and add
statistics for bandwith burst to the SCHED_FAIR class.
- Properly account SCHED_IDLE entities
- Prevent a potential deadlock when initial priority is assigned to a
newly created kthread. A recent change to plug a race between cpuset
and __sched_setscheduler() introduced a new lock dependency which is
now triggered. Break the lock dependency chain by moving the priority
assignment to the thread function.
- Fix the idle time reporting in /proc/uptime for NOHZ enabled systems.
- Improve idle balancing in general and especially for NOHZ enabled
systems.
- Provide proper interfaces for live patching so it does not have to
fiddle with scheduler internals.
- Add cluster aware scheduling support.
- A small set of tweaks for RT (irqwork, wait_task_inactive(), various
scheduler options and delaying mmdrop)
- The usual small tweaks and improvements all over the place
* tag 'sched-core-2021-11-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (69 commits)
sched/fair: Cleanup newidle_balance
sched/fair: Remove sysctl_sched_migration_cost condition
sched/fair: Wait before decaying max_newidle_lb_cost
sched/fair: Skip update_blocked_averages if we are defering load balance
sched/fair: Account update_blocked_averages in newidle_balance cost
x86: Fix __get_wchan() for !STACKTRACE
sched,x86: Fix L2 cache mask
sched/core: Remove rq_relock()
sched: Improve wake_up_all_idle_cpus() take #2
irq_work: Also rcuwait for !IRQ_WORK_HARD_IRQ on PREEMPT_RT
irq_work: Handle some irq_work in a per-CPU thread on PREEMPT_RT
irq_work: Allow irq_work_sync() to sleep if irq_work() no IRQ support.
sched/rt: Annotate the RT balancing logic irqwork as IRQ_WORK_HARD_IRQ
sched: Add cluster scheduler level for x86
sched: Add cluster scheduler level in core and related Kconfig for ARM64
topology: Represent clusters of CPUs within a die
sched: Disable -Wunused-but-set-variable
sched: Add wrapper for get_wchan() to keep task blocked
x86: Fix get_wchan() to support the ORC unwinder
proc: Use task_is_running() for wchan in /proc/$pid/stat
...
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| acpi_numa.c | ||
| acpi_parking_protocol.c | ||
| acpi.c | ||
| alternative.c | ||
| armv8_deprecated.c | ||
| asm-offsets.c | ||
| cacheinfo.c | ||
| cpu_errata.c | ||
| cpu_ops.c | ||
| cpu-reset.h | ||
| cpu-reset.S | ||
| cpufeature.c | ||
| cpuidle.c | ||
| cpuinfo.c | ||
| crash_core.c | ||
| crash_dump.c | ||
| debug-monitors.c | ||
| efi-entry.S | ||
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| efi-rt-wrapper.S | ||
| efi.c | ||
| entry-common.c | ||
| entry-fpsimd.S | ||
| entry-ftrace.S | ||
| entry.S | ||
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| ftrace.c | ||
| head.S | ||
| hibernate-asm.S | ||
| hibernate.c | ||
| hw_breakpoint.c | ||
| hyp-stub.S | ||
| idle.c | ||
| idreg-override.c | ||
| image-vars.h | ||
| image.h | ||
| io.c | ||
| irq.c | ||
| jump_label.c | ||
| kaslr.c | ||
| kexec_image.c | ||
| kgdb.c | ||
| kuser32.S | ||
| machine_kexec_file.c | ||
| machine_kexec.c | ||
| Makefile | ||
| module-plts.c | ||
| module.c | ||
| mte.c | ||
| paravirt.c | ||
| patching.c | ||
| pci.c | ||
| perf_callchain.c | ||
| perf_event.c | ||
| perf_regs.c | ||
| pointer_auth.c | ||
| process.c | ||
| proton-pack.c | ||
| psci.c | ||
| ptrace.c | ||
| reloc_test_core.c | ||
| reloc_test_syms.S | ||
| relocate_kernel.S | ||
| return_address.c | ||
| sdei.c | ||
| setup.c | ||
| signal32.c | ||
| signal.c | ||
| sigreturn32.S | ||
| sleep.S | ||
| smccc-call.S | ||
| smp_spin_table.c | ||
| smp.c | ||
| stacktrace.c | ||
| suspend.c | ||
| sys32.c | ||
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| sys.c | ||
| syscall.c | ||
| time.c | ||
| topology.c | ||
| trace-events-emulation.h | ||
| traps.c | ||
| vdso32-wrap.S | ||
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| vdso.c | ||
| vmlinux.lds.S | ||