Brendan Jackman 93f50f9024 sched/fair: Fix usage of find_idlest_group() when the local group is idlest ... find_idlest_group() returns NULL when the local group is idlest. The caller then continues the find_idlest_group() search at a lower level of the current CPU's sched_domain hierarchy. find_idlest_group_cpu() is not consulted and, crucially, @new_cpu is not updated. This means the search is pointless and we return @prev_cpu from select_task_rq_fair(). This is fixed by initialising @new_cpu to @cpu instead of @prev_cpu. Signed-off-by: Brendan Jackman <brendan.jackman@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Josef Bacik <jbacik@fb.com> Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Josef Bacik <josef@toxicpanda.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Morten Rasmussen <morten.rasmussen@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20171005114516.18617-6-brendan.jackman@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2017-10-10 11:45:36 +02:00
..
bpf	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf	2017-10-09 10:39:52 -07:00
cgroup	cgroup: Reinit cgroup_taskset structure before cgroup_migrate_execute() returns	2017-09-22 08:14:45 -07:00
configs	ANDROID: binder: add hwbinder,vndbinder to BINDER_DEVICES.	2017-08-22 18:43:23 -07:00
debug	…
events	perf/aux: Only update ->aux_wakeup in non-overwrite mode	2017-09-29 10:06:45 +02:00
gcov	gcov: support GCC 7.1	2017-05-12 15:57:15 -07:00
irq	irq/generic-chip: Don't replace domain's name	2017-09-28 12:18:59 +02:00
livepatch	livepatch: Fix stacking of patches with respect to RCU	2017-06-20 10:42:19 +02:00
locking	locking/rwsem-xadd: Fix missed wakeup due to reordering of load	2017-09-29 10:10:20 +02:00
power	PM / s2idle: Invoke the ->wake() platform callback earlier	2017-09-29 01:26:13 +02:00
printk	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk	2017-09-07 21:00:52 -07:00
rcu	Two updates.	2017-10-04 08:34:01 -07:00
sched	sched/fair: Fix usage of find_idlest_group() when the local group is idlest	2017-10-10 11:45:36 +02:00
time	sched/idle: Move quiet_vmstate() into the NOHZ code	2017-10-10 11:43:29 +02:00
trace	sched/debug: Rename task-state printing helpers	2017-10-10 11:43:29 +02:00
.gitignore	…
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.locks	…
Kconfig.preempt	…
Makefile	kmod: move #ifdef CONFIG_MODULES wrapper to Makefile	2017-09-08 18:26:51 -07:00
acct.c	fs: make the buf argument to __kernel_write a void pointer	2017-09-04 19:05:15 -04:00
async.c	async: Adjust system_state checks	2017-05-23 10:01:37 +02:00
audit.c	audit: update the function comments	2017-09-05 09:46:59 -04:00
audit.h	ipc: mqueue: Replace timespec with timespec64	2017-09-03 20:21:24 -04:00
audit_fsnotify.c	…
audit_tree.c	…
audit_watch.c	audit/stable-4.13 PR 20170816	2017-08-16 16:48:34 -07:00
auditfilter.c	…
auditsc.c	Merge branch 'work.ipc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-09-14 17:37:26 -07:00
backtracetest.c	…
bounds.c	…
capability.c	…
compat.c	semtimedop(): move compat to native	2017-07-15 20:46:47 -04:00
configs.c	…
context_tracking.c	…
cpu.c	Merge branch 'core-watchdog-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-10-06 08:36:41 -07:00
cpu_pm.c	PM / CPU: replace raw_notifier with atomic_notifier	2017-07-31 13:09:49 +02:00
crash_core.c	kdump: protect vmcoreinfo data under the crash memory	2017-07-12 16:26:00 -07:00
crash_dump.c	…
cred.c	doc: ReSTify credentials.txt	2017-05-18 10:30:19 -06:00
delayacct.c	…
dma.c	…
elfcore.c	…
exec_domain.c	…
exit.c	fix infoleak in waitid(2)	2017-09-29 13:43:15 -04:00
extable.c	extable: Enable RCU if it is not watching in kernel_text_address()	2017-09-23 16:50:20 -04:00
fork.c	android: binder: drop lru lock in isolate callback	2017-10-03 17:54:24 -07:00
freezer.c	…
futex.c	futex: Fix pi_state->owner serialization	2017-09-25 16:37:11 +02:00
futex_compat.c	…
groups.c	kernel/groups.c: use sort library function	2017-07-10 16:32:34 -07:00
hung_task.c	…
irq_work.c	…
jump_label.c	jump_label: Provide hotplug context variants	2017-08-10 12:28:59 +02:00
kallsyms.c	kernel/kallsyms.c: replace all_var with IS_ENABLED(CONFIG_KALLSYMS_ALL)	2017-07-10 16:32:34 -07:00
kcmp.c	kernel/kcmp.c: drop branch leftover typo	2017-10-03 17:54:25 -07:00
kcov.c	kcov: support compat processes	2017-09-08 18:26:51 -07:00
kexec.c	kdump: protect vmcoreinfo data under the crash memory	2017-07-12 16:26:00 -07:00
kexec_core.c	x86/mm, kexec: Allow kexec to be used with SME	2017-07-18 11:38:04 +02:00
kexec_file.c	kexec_file: adjust declaration of kexec_purgatory	2017-07-12 16:26:02 -07:00
kexec_internal.h	kexec_file: adjust declaration of kexec_purgatory	2017-07-12 16:26:02 -07:00
kmod.c	kmod: move #ifdef CONFIG_MODULES wrapper to Makefile	2017-09-08 18:26:51 -07:00
kprobes.c	kprobes: Ensure that jprobe probepoints are at function entry	2017-07-08 11:05:35 +02:00
ksysfs.c	kexec: move vmcoreinfo out of the kernel's .bss section	2017-07-12 16:25:59 -07:00
kthread.c	kernel/kthread.c: kthread_worker: don't hog the cpu	2017-08-31 16:33:15 -07:00
latencytop.c	…
memremap.c	memremap: add scheduling point to devm_memremap_pages	2017-10-03 17:54:25 -07:00
module-internal.h	…
module.c	module: fix ddebug_remove_module()	2017-07-25 15:08:32 +02:00
module_signing.c	…
notifier.c	…
nsproxy.c	…
padata.c	padata: Avoid nested calls to cpus_read_lock() in pcrypt_init_padata()	2017-05-26 10:10:37 +02:00
panic.c	locking/refcounts, x86/asm: Implement fast refcount overflow protection	2017-08-17 10:40:26 +02:00
params.c	kernel/params.c: improve STANDARD_PARAM_DEF readability	2017-10-03 17:54:26 -07:00
pid.c	pids: make task_tgid_nr_ns() safe	2017-08-21 12:47:31 -07:00
pid_namespace.c	userns,pidns: Verify the userns for new pid namespaces	2017-07-20 07:43:58 -05:00
profile.c	…
ptrace.c	signal: Remove kernel interal si_code magic	2017-07-24 14:30:28 -05:00
range.c	…
reboot.c	…
relay.c	…
resource.c	…
seccomp.c	seccomp: fix the usage of get/put_seccomp_filter() in seccomp_get_filter()	2017-09-27 22:51:12 -07:00
signal.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2017-09-11 18:34:47 -07:00
smp.c	treewide: make "nr_cpu_ids" unsigned	2017-09-08 18:26:48 -07:00
smpboot.c	watchdog/core, powerpc: Lock cpus across reconfiguration	2017-10-04 10:53:54 +02:00
smpboot.h	…
softirq.c	…
stacktrace.c	…
stop_machine.c	stop_machine: Provide stop_machine_cpuslocked()	2017-05-26 10:10:36 +02:00
sys.c	prctl: Allow local CAP_SYS_ADMIN changing exe_file	2017-07-20 07:46:07 -05:00
sys_ni.c	…
sysctl.c	Merge branch 'core-watchdog-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-10-06 08:36:41 -07:00
sysctl_binary.c	fs: fix kernel_write prototype	2017-09-04 19:05:15 -04:00
task_work.c	task_work: Replace spin_unlock_wait() with lock/unlock pair	2017-07-25 10:08:58 -07:00
taskstats.c	…
test_kprobes.c	…
torture.c	torture: Fix typo suppressing CPU-hotplug statistics	2017-07-25 13:04:45 -07:00
tracepoint.c	…
tsacct.c	…
ucount.c	…
uid16.c	…
umh.c	kmod: split out umh code into its own file	2017-09-08 18:26:50 -07:00
up.c	smp: Avoid using two cache lines for struct call_single_data	2017-08-29 15:14:38 +02:00
user-return-notifier.c	…
user.c	…
user_namespace.c	userns,pidns: Verify the userns for new pid namespaces	2017-07-20 07:43:58 -05:00
utsname.c	…
utsname_sysctl.c	…
watchdog.c	watchdog/core: Put softlockup_threads_initialized under ifdef guard	2017-10-04 11:30:50 +02:00
watchdog_hld.c	watchdog/hardlockup/perf: Fix spelling mistake: "permanetely" -> "permanently"	2017-09-28 12:24:54 +02:00
workqueue.c	Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2017-09-06 21:59:31 -07:00
workqueue_internal.h	…