Thomas Gleixner f2469a1fb4 sched/core: Wait for tasks being pushed away on hotplug ... RT kernels need to ensure that all tasks which are not per CPU kthreads have left the outgoing CPU to guarantee that no tasks are force migrated within a migrate disabled section. There is also some desire to (ab)use fine grained CPU hotplug control to clear a CPU from active state to force migrate tasks which are not per CPU kthreads away for power control purposes. Add a mechanism which waits until all tasks which should leave the CPU after the CPU active flag is cleared have moved to a different online CPU. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Valentin Schneider <valentin.schneider@arm.com> Reviewed-by: Daniel Bristot de Oliveira <bristot@redhat.com> Link: https://lkml.kernel.org/r/20201023102346.377836842@infradead.org		2020-11-10 18:38:58 +01:00
..
bpf	Fixes for 5.10-rc1 from the networking tree:	2020-10-23 12:05:49 -07:00
cgroup	kernel/: fix repeated words in comments	2020-10-16 11:11:19 -07:00
configs
debug	kdb: Fix pager search for multi-line strings	2020-10-01 14:44:08 +01:00
dma	dma-mapping: move more functions to dma-map-ops.h	2020-10-20 10:41:07 +02:00
entry	arch-cleanup-2020-10-22	2020-10-23 10:06:38 -07:00
events	task_work: cleanup notification modes	2020-10-17 15:05:30 -06:00
gcov
irq	task_work: cleanup notification modes	2020-10-17 15:05:30 -06:00
kcsan	kernel/: fix repeated words in comments	2020-10-16 11:11:19 -07:00
livepatch	kernel/: fix repeated words in comments	2020-10-16 11:11:19 -07:00
locking	Merge tag 'core-rcu-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2020-10-18 14:34:50 -07:00
power	kernel/: fix repeated words in comments	2020-10-16 11:11:19 -07:00
printk	Urgent printk fix for 5.10	2020-10-16 12:52:37 -07:00
rcu	Merge tag 'core-rcu-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2020-10-18 14:34:50 -07:00
sched	sched/core: Wait for tasks being pushed away on hotplug	2020-11-10 18:38:58 +01:00
time	random32: add noise from network and scheduling activity	2020-10-24 20:21:57 +02:00
trace	Fix synthetic event "strcat" overrun	2020-10-28 12:05:14 -07:00
.gitignore
acct.c	kernel: acct.c: fix some kernel-doc nits	2020-10-16 11:11:19 -07:00
async.c
audit.c
audit.h
audit_fsnotify.c
audit_tree.c
audit_watch.c
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c	LSM: Signal to SafeSetID when setting group IDs	2020-10-13 09:17:34 -07:00
compat.c
configs.c
context_tracking.c
cpu.c
cpu_pm.c
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c	pid: move pidfd_get_pid() to pid.c	2020-10-18 09:27:10 -07:00
extable.c
fail_function.c
fork.c	kernel/: fix repeated words in comments	2020-10-16 11:11:19 -07:00
freezer.c
futex.c	futex: Adjust absolute futex timeouts with per time namespace offset	2020-10-20 17:02:57 +02:00
gen_kheaders.sh
groups.c	LSM: Signal to SafeSetID when setting group IDs	2020-10-13 09:17:34 -07:00
hung_task.c
iomem.c
irq_work.c
jump_label.c	kernel/: fix repeated words in comments	2020-10-16 11:11:19 -07:00
kallsyms.c	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec.c	LSM: Introduce kernel_post_load_data() hook	2020-10-05 13:37:03 +02:00
kexec_core.c	kernel/: fix repeated words in comments	2020-10-16 11:11:19 -07:00
kexec_elf.c
kexec_file.c	kernel/resource: move and rename IORESOURCE_MEM_DRIVER_MANAGED	2020-10-16 11:11:18 -07:00
kexec_internal.h
kheaders.c
kmod.c
kprobes.c	Updates for tracing and bootconfig:	2020-10-15 15:51:28 -07:00
ksysfs.c
kthread.c	kernel/: fix repeated words in comments	2020-10-16 11:11:19 -07:00
latencytop.c
Makefile	Kbuild updates for v5.10	2020-10-22 13:13:57 -07:00
module-internal.h
module.c	Modules updates for v5.10	2020-10-22 13:08:57 -07:00
module_signature.c
module_signing.c
notifier.c
nsproxy.c
padata.c
panic.c	panic: dump registers on panic_on_warn	2020-10-16 11:11:22 -07:00
params.c
pid.c	pid: move pidfd_get_pid() to pid.c	2020-10-18 09:27:10 -07:00
pid_namespace.c	kernel/: fix repeated words in comments	2020-10-16 11:11:19 -07:00
profile.c
ptrace.c
range.c	kernel.h: split out min()/max() et al. helpers	2020-10-16 11:11:19 -07:00
reboot.c
regset.c
relay.c	kernel/relay.c: drop unneeded initialization	2020-10-16 11:11:22 -07:00
resource.c	kernel/resource: make iomem_resource implicit in release_mem_region_adjustable()	2020-10-16 11:11:18 -07:00
rseq.c
scftorture.c
scs.c
seccomp.c	seccomp: Make duplicate listener detection non-racy	2020-10-08 13:17:47 -07:00
signal.c
smp.c	Merge tag 'core-rcu-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2020-10-18 14:34:50 -07:00
smpboot.c
smpboot.h
softirq.c
stackleak.c	stackleak: let stack_erasing_sysctl take a kernel pointer buffer	2020-09-19 13:13:39 -07:00
stacktrace.c	stacktrace: Remove reliable argument from arch_stack_walk() callback	2020-09-18 14:24:16 +01:00
static_call.c	static_call: Fix return type of static_call_init	2020-10-02 21:18:25 +02:00
stop_machine.c	stop_machine: Add function and caller debug info	2020-11-10 18:38:57 +01:00
sys.c	kernel/sys.c: fix prototype of prctl_get_tid_address()	2020-10-25 11:44:16 -07:00
sys_ni.c	mm/madvise: introduce process_madvise() syscall: an external memory hinting API	2020-10-18 09:27:10 -07:00
sysctl-test.c
sysctl.c	mm: allow a controlled amount of unfairness in the page lock	2020-09-17 10:26:41 -07:00
task_work.c	task_work: cleanup notification modes	2020-10-17 15:05:30 -06:00
taskstats.c	taskstats: move specifying netlink policy back to ops	2020-10-02 19:11:12 -07:00
test_kprobes.c
torture.c
tracepoint.c	tracepoint: Fix out of sync data passing by static caller	2020-10-02 21:18:25 +02:00
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c	usermodehelper: reset umask to default before executing user process	2020-10-06 10:31:52 -07:00
up.c
user-return-notifier.c
user.c
user_namespace.c	kernel/: fix repeated words in comments	2020-10-16 11:11:19 -07:00
usermode_driver.c
utsname.c
utsname_sysctl.c
watch_queue.c
watchdog.c
watchdog_hld.c
workqueue.c	workqueue: fix a kernel-doc warning	2020-10-16 07:28:20 +02:00
workqueue_internal.h