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Mel Gorman 9fe1f127b9 sched/fair: Merge select_idle_core/cpu() 
Both select_idle_core() and select_idle_cpu() do a loop over the same
cpumask. Observe that by clearing the already visited CPUs, we can
fold the iteration and iterate a core at a time.

All we need to do is remember any non-idle CPU we encountered while
scanning for an idle core. This way we'll only iterate every CPU once.

Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lkml.kernel.org/r/20210127135203.19633-5-mgorman@techsingularity.net
2021-02-17 14:07:25 +01:00
..
bpf
bpf: Fix 32 bit src register truncation on div/mod
2021-02-10 01:32:40 +01:00
cgroup
cgroup: fix psi monitor for root cgroup
2021-01-19 11:37:05 -05:00
configs
staging: ION: remove some references to CONFIG_ION
2021-01-06 17:39:38 +01:00
debug
smp: Cleanup smp_call_function*()
2020-11-24 16:47:49 +01:00
dma
dma-mapping: benchmark: use u8 for reserved field in uAPI structure
2021-02-05 12:48:46 +01:00
entry
entry: Use different define for selector variable in SUD
2021-02-06 00:21:42 +01:00
events
Merge branch 'exec-update-lock-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2020-12-15 19:36:48 -08:00
gcov
init/gcov: allow CONFIG_CONSTRUCTORS on UML to fix module gcov
2021-02-05 11:03:47 -08:00
irq
genirq/msi: Activate Multi-MSI early when MSI_FLAG_ACTIVATE_EARLY is set
2021-01-30 01:22:31 +01:00
kcsan
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livepatch
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locking
rtmutex: Remove unused argument from rt_mutex_proxy_unlock()
2021-01-26 15:10:58 +01:00
power
PM: hibernate: flush swap writer after marking
2021-01-25 18:52:30 +01:00
printk
Merge branch 'printk-rework' into for-linus
2021-01-25 14:29:35 +01:00
rcu
Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
2021-01-04 10:55:19 -08:00
sched
sched/fair: Merge select_idle_core/cpu()
2021-02-17 14:07:25 +01:00
time
ntp: Use freezable workqueue for RTC synchronization
2021-02-05 18:03:13 +01:00
trace
Merge tag 'trace-v5.11-rc7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2021-02-12 11:16:17 -08:00
.gitignore
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acct.c
kernel/acct.c: use #elif instead of #end and #elif
2020-12-15 22:46:15 -08:00
async.c
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audit_fsnotify.c
fsnotify: generalize handle_inode_event()
2020-12-03 14:58:35 +01:00
audit_tree.c
fsnotify: generalize handle_inode_event()
2020-12-03 14:58:35 +01:00
audit_watch.c
fsnotify: generalize handle_inode_event()
2020-12-03 14:58:35 +01:00
audit.c
audit: replace atomic_add_return()
2020-12-02 22:52:16 -05:00
audit.h
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auditfilter.c
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auditsc.c
Merge tag 'audit-pr-20201214' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2020-12-16 10:54:03 -08:00
backtracetest.c
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bounds.c
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capability.c
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compat.c
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configs.c
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context_tracking.c
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cpu_pm.c
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cpu.c
Merge tag 'sched-core-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-12-14 18:29:11 -08:00
crash_core.c
kdump: append uts_namespace.name offset to VMCOREINFO
2020-12-15 22:46:18 -08:00
crash_dump.c
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cred.c
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delayacct.c
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dma.c
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exec_domain.c
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exit.c
kernel/io_uring: cancel io_uring before task works
2020-12-30 19:36:54 -07:00
extable.c
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fail_function.c
fault-injection: handle EI_ETYPE_TRUE
2020-12-15 22:46:19 -08:00
fork.c
Kernel: fork.c: Fix coding style: Do not use {} around single-line statements
2021-01-11 12:55:01 +01:00
freezer.c
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futex.c
futex: Handle faults correctly for PI futexes
2021-01-26 15:11:00 +01:00
gen_kheaders.sh
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groups.c
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hung_task.c
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iomem.c
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irq_work.c
irq_work: Optimize irq_work_single()
2020-11-24 16:47:49 +01:00
jump_label.c
jump_label: Fix usage in module __init
2020-12-18 16:53:12 +01:00
kallsyms.c
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kcmp.c
Merge branch 'exec-update-lock-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2020-12-15 19:36:48 -08:00
Kconfig.freezer
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Kconfig.hz
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Kconfig.locks
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Kconfig.preempt
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kcov.c
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kexec_core.c
kernel: kexec: remove the lock operation of system_transition_mutex
2021-01-25 18:40:37 +01:00
kexec_elf.c
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kexec_file.c
crypto: sha - split sha.h into sha1.h and sha2.h
2020-11-20 14:45:33 +11:00
kexec_internal.h
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kexec.c
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kheaders.c
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kmod.c
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kprobes.c
kretprobe: Avoid re-registration of the same kretprobe earlier
2021-01-29 17:29:16 -05:00
ksysfs.c
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kthread.c
Merge tag 'sched_urgent_for_v5.11_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2021-01-24 10:09:20 -08:00
latencytop.c
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Makefile
kcov: don't instrument with UBSAN
2020-12-15 22:46:19 -08:00
module_signature.c
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module_signing.c
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module-internal.h
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module.c
Merge tag 'modules-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
2020-12-17 13:01:31 -08:00
notifier.c
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nsproxy.c
Merge tag 'fixes-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
2020-12-14 16:40:27 -08:00
padata.c
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panic.c
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params.c
Merge tag 'modules-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
2020-12-17 13:01:31 -08:00
pid_namespace.c
Merge tag 'fixes-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
2020-12-14 16:40:27 -08:00
pid.c
Merge branch 'exec-update-lock-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2020-12-15 19:36:48 -08:00
profile.c
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ptrace.c
Merge branch 'akpm' (patches from Andrew)
2020-12-15 12:53:37 -08:00
range.c
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reboot.c
reboot: hide from sysfs not applicable settings
2020-12-15 22:46:19 -08:00
regset.c
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relay.c
relay: allow the use of const callback structs
2020-12-15 22:46:18 -08:00
resource_kunit.c
resource: provide meaningful MODULE_LICENSE() in test suite
2020-11-25 18:52:35 +01:00
resource.c
kernel/resource.c: fix kernel-doc markups
2020-12-15 22:46:18 -08:00
rseq.c
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scftorture.c
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scs.c
scs: switch to vmapped shadow stacks
2020-12-01 10:30:28 +00:00
seccomp.c
Merge tag 'seccomp-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2020-12-16 11:30:10 -08:00
signal.c
Merge tag 'for-linus-2021-01-24' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
2021-01-24 09:35:28 -08:00
smp.c
Merge branch 'linus' into sched/core, to resolve semantic conflict
2020-11-27 11:10:50 +01:00
smpboot.c
kthread: Extract KTHREAD_IS_PER_CPU
2021-01-22 15:09:42 +01:00
smpboot.h
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softirq.c
Merge tag 'locking-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-12-27 09:06:10 -08:00
stackleak.c
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stacktrace.c
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static_call.c
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stop_machine.c
Merge branch 'linus' into sched/core, to resolve semantic conflict
2020-11-27 11:10:50 +01:00
sys_ni.c
epoll: wire up syscall epoll_pwait2
2020-12-19 11:18:38 -08:00
sys.c
kernel: Implement selective syscall userspace redirection
2020-12-02 15:07:56 +01:00
sysctl-test.c
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sysctl.c
rcu: Panic after fixed number of stalls
2020-11-19 19:37:16 -08:00
task_work.c
task_work: remove legacy TWA_SIGNAL path
2020-12-12 09:17:38 -07:00
taskstats.c
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test_kprobes.c
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torture.c
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tracepoint.c
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tsacct.c
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ucount.c
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uid16.c
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uid16.h
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umh.c
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up.c
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user_namespace.c
Merge tag 'fixes-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
2020-12-14 16:40:27 -08:00
user-return-notifier.c
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user.c
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usermode_driver.c
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utsname_sysctl.c
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utsname.c
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watch_queue.c
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watchdog_hld.c
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watchdog.c
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workqueue_internal.h
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workqueue.c
workqueue: Restrict affinity change to rescuer
2021-01-22 15:09:43 +01:00