i2som-imx-linux/kernel at 7c3f08eadcfdfca74b2563e941e645b52cc34622 - i2som-imx-linux - i2SOMGit

iMX/i2som-imx-linux

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History

Peter Zijlstra 7c3f08eadc sched/topology: Fix building of overlapping sched-groups

commit 0372dd2736 upstream.

When building the overlapping groups, we very obviously should start
with the previous domain of _this_ @cpu, not CPU-0.

This can be readily demonstrated with a topology like:

  node   0   1   2   3
    0:  10  20  30  20
    1:  20  10  20  30
    2:  30  20  10  20
    3:  20  30  20  10

Where (for example) CPU1 ends up generating the following nonsensical groups:

  [] CPU1 attaching sched-domain:
  []  domain 0: span 0-2 level NUMA
  []   groups: 1 2 0
  []   domain 1: span 0-3 level NUMA
  []    groups: 1-3 (cpu_capacity = 3072) 0-1,3 (cpu_capacity = 3072)

Where the fact that domain 1 doesn't include a group with span 0-2 is
the obvious fail.

With patch this looks like:

  [] CPU1 attaching sched-domain:
  []  domain 0: span 0-2 level NUMA
  []   groups: 1 0 2
  []   domain 1: span 0-3 level NUMA
  []    groups: 0-2 (cpu_capacity = 3072) 0,2-3 (cpu_capacity = 3072)

Debugged-by: Lauro Ramos Venancio <lvenanci@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Fixes: e3589f6c81 ("sched: Allow for overlapping sched_domain spans")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-07-21 07:42:23 +02:00

..

bpf: prevent leaking pointer via xadd on unpriviledged

2017-07-21 07:42:18 +02:00

config: android: enable CONFIG_SECCOMP

2016-10-11 15:06:32 -07:00

kernel/debug/debug_core.c: more properly delay for secondary CPUs

2017-01-06 10:40:17 +01:00

perf/core: Fix sys_perf_event_open() vs. hotplug

2017-07-05 14:40:26 +02:00

…

genirq: Release resources in __setup_irq() error path

2017-06-24 07:11:17 +02:00

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locking/rwsem-spinlock: Fix EINTR branch in __down_write_common()

2017-07-15 12:16:15 +02:00

PM / sleep: fix device reference leak in test_suspend

2016-11-02 05:10:04 +01:00

printk: use rcuidle console tracepoint

2017-02-23 17:44:36 +01:00

rcu: Add memory barriers for NOCB leader wakeup

2017-07-21 07:42:22 +02:00

sched/topology: Fix building of overlapping sched-groups

2017-07-21 07:42:23 +02:00

time: Fix CLOCK_MONOTONIC_RAW sub-nanosecond accounting

2017-06-29 13:00:30 +02:00

tracing/kprobes: Allow to create probe with a module name starting with a digit

2017-07-12 15:01:02 +02:00

.gitignore

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acct.c

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async.c

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audit_fsnotify.c

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audit_tree.c

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audit_watch.c

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audit.c

Merge branch 'stable-4.9' of git://git.infradead.org/users/pcmoore/audit

2016-10-04 14:21:41 -07:00

audit.h

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auditfilter.c

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auditsc.c

Merge branch 'stable-4.9' of git://git.infradead.org/users/pcmoore/audit

2016-10-04 14:21:41 -07:00

backtracetest.c

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bounds.c

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capability.c

ptrace: Capture the ptracer's creds not PT_PTRACE_CAP

2017-01-06 10:40:13 +01:00

cgroup_freezer.c

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cgroup_pids.c

cgroup/pids: remove spurious suspicious RCU usage warning

2017-03-26 13:05:58 +02:00

cgroup.c

cgroup: Prevent kill_css() from being called more than once

2017-06-14 15:06:00 +02:00

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

cpu/hotplug: Drop the device lock on error

2017-06-14 15:06:04 +02:00

cpuset.c

cpuset: consider dying css as offline

2017-06-14 15:06:00 +02:00

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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elfcore.c

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exec_domain.c

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exit.c

sched/autogroup: Do not use autogroup->tg in zombie threads

2016-11-22 12:33:43 +01:00

extable.c

kernel/extable.c: mark core_kernel_text notrace

2017-07-21 07:42:21 +02:00

fork.c

stackprotector: Increase the per-task stack canary's random range from 32 bits to 64 bits on 64-bit platforms

2017-05-25 15:44:46 +02:00

freezer.c

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futex_compat.c

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futex.c

futex: Add missing error handling to FUTEX_REQUEUE_PI

2017-03-22 12:43:40 +01:00

groups.c

cred: simpler, 1D supplementary groups

2016-10-07 18:46:30 -07:00

hung_task.c

hung_task: allow hung_task_panic when hung_task_warnings is 0

2016-10-11 15:06:33 -07:00

irq_work.c

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jump_label.c

jump_labels: API for flushing deferred jump label updates

2017-01-19 20:17:59 +01:00

kallsyms.c

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kcmp.c

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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

kcov: add missing #include <linux/sched.h>

2016-12-07 17:10:00 -08:00

kexec_core.c

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kexec_file.c

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kexec_internal.h

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kexec.c

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kmod.c

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kprobes.c

tracing/kprobes: Enforce kprobes teardown after testing

2017-05-25 15:44:47 +02:00

ksysfs.c

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kthread.c

cgroup, kthread: close race window where new kthreads can be migrated to non-root cgroups

2017-04-21 09:31:18 +02:00

latencytop.c

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Makefile

kernel/watchdog.c: move hardlockup detector to separate file

2017-06-17 06:41:57 +02:00

membarrier.c

Fix: Disable sys_membarrier when nohz_full is enabled

2017-03-12 06:41:45 +01:00

memremap.c

mm, devm_memremap_pages: hold device_hotplug lock over mem_hotplug_{begin, done}

2017-03-12 06:41:43 +01:00

module_signing.c

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module-internal.h

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module.c

Re-enable CONFIG_MODVERSIONS in a slightly weaker form

2016-11-29 16:01:30 -08:00

notifier.c

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nsproxy.c

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padata.c

padata: free correct variable

2017-05-20 14:28:40 +02:00

panic.c

kernel/panic.c: add missing \n

2017-07-05 14:40:24 +02:00

params.c

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pid_namespace.c

pid_ns: Sleep in TASK_INTERRUPTIBLE in zap_pid_ns_processes

2017-05-25 15:44:38 +02:00

pid.c

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profile.c

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ptrace.c

ptrace: Properly initialize ptracer_cred on fork

2017-06-14 15:05:54 +02:00

range.c

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reboot.c

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relay.c

relay: check array offset before using it

2017-01-12 11:39:30 +01:00

resource.c

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seccomp.c

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signal.c

signal: Only reschedule timers on signals timers have sent

2017-06-29 13:00:29 +02:00

smp.c

smp: Allocate smp_call_on_cpu() workqueue on stack too

2016-09-22 14:49:10 +02:00

smpboot.c

kthread/smpboot: do not park in kthread_create_on_cpu()

2016-10-11 15:06:33 -07:00

smpboot.h

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softirq.c

softirq: Display IRQ_POLL for irq-poll statistics

2016-10-21 15:45:47 -06:00

stacktrace.c

stacktrace, lockdep: Fix address, newline ugliness

2017-02-14 15:25:42 -08:00

stop_machine.c

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2016-10-03 13:39:00 -07:00

sys_ni.c

x86/pkeys: Fix pkeys build breakage for some non-x86 arches

2016-09-13 14:41:36 +02:00

sys.c

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sysctl_binary.c

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sysctl.c

sysctl: report EINVAL if value is larger than UINT_MAX for proc_douintvec

2017-07-12 15:01:04 +02:00

task_work.c

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taskstats.c

taskstats: fix the length of cgroupstats_cmd_get_policy

2016-11-03 16:55:58 -04:00

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

kernel/ucount.c: mark user_header with kmemleak_ignore()

2017-06-17 06:41:51 +02:00

uid16.c

cred: simpler, 1D supplementary groups

2016-10-07 18:46:30 -07:00

up.c

smp: Add function to execute a function synchronously on a CPU

2016-09-05 13:52:39 +02:00

user_namespace.c

Merge branch 'nsfs-ioctls' into HEAD

2016-09-22 20:00:36 -05:00

user-return-notifier.c

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user.c

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utsname_sysctl.c

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utsname.c

Merge branch 'nsfs-ioctls' into HEAD

2016-09-22 20:00:36 -05:00

watchdog_hld.c

kernel/watchdog: prevent false hardlockup on overloaded system

2017-06-17 06:41:57 +02:00

watchdog.c

kernel/watchdog: prevent false hardlockup on overloaded system

2017-06-17 06:41:57 +02:00

workqueue_internal.h

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workqueue.c

kthread: rename probe_kthread_data() to kthread_probe_data()

2016-10-11 15:06:33 -07:00