Peter Zijlstra 137b1ce318 sched/cgroup: Fix cgroup entity load tracking tear-down ...

[ Upstream commit 6fe1f348b3 ]

When a cgroup's CPU runqueue is destroyed, it should remove its
remaining load accounting from its parent cgroup.

The current site for doing so it unsuited because its far too late and
unordered against other cgroup removal (->css_free() will be, but we're also
in an RCU callback).

Put it in the ->css_offline() callback, which is the start of cgroup
destruction, right after the group has been made unavailable to
userspace. The ->css_offline() callbacks are called in hierarchical order
after the following v4.4 commit:

  aa226ff4a1 ("cgroup: make sure a parent css isn't offlined before its children")

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20160121212416.GL6357@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2018-11-10 07:41:35 -08:00

..

bpf

bpf: fix references to free_bpf_prog_info() in comments

2018-08-06 16:24:37 +02:00

configs

kconfig: tinyconfig: provide whole choice blocks to avoid warnings

2016-09-24 10:07:42 +02:00

debug

kdb: make "mdr" command repeat

2018-05-30 07:49:17 +02:00

events

perf/ring_buffer: Prevent concurent ring buffer access

2018-11-10 07:41:34 -08:00

gcov

gcov: disable for COMPILE_TEST

2018-01-23 19:50:10 +01:00

irq

genirq: Delay incrementing interrupt count if it's disabled/pending

2018-09-15 09:40:40 +02:00

livepatch

…

locking

locking/osq_lock: Fix osq_lock queue corruption

2018-09-19 22:48:56 +02:00

power

PM / sleep: wakeup: Fix build error caused by missing SRCU support

2018-09-09 20:04:34 +02:00

printk

braille-console: Fix value returned by _braille_console_setup

2018-03-22 09:23:23 +01:00

rcu

rcu: Allow for page faults in NMI handlers

2017-10-18 09:20:41 +02:00

sched

sched/cgroup: Fix cgroup entity load tracking tear-down

2018-11-10 07:41:35 -08:00

time

alarmtimer: Prevent overflow for relative nanosleep

2018-10-10 08:52:05 +02:00

trace

tracing: Skip more functions when doing stack tracing of events

2018-11-10 07:41:35 -08:00

.gitignore

…

acct.c

kernel/acct.c: fix the acct->needcheck check in check_free_space()

2018-01-10 09:27:08 +01:00

async.c

kernel/async.c: revert "async: simplify lowest_in_progress()"

2018-02-16 20:09:45 +01:00

audit_fsnotify.c

…

audit_tree.c

…

audit_watch.c

audit: fix use-after-free in audit_add_watch

2018-09-26 08:35:08 +02:00

audit.c

audit: return on memory error to avoid null pointer dereference

2018-05-30 07:49:16 +02:00

audit.h

…

auditfilter.c

audit: allow not equal op for audit by executable

2018-08-06 16:24:38 +02:00

auditsc.c

audit: allow not equal op for audit by executable

2018-08-06 16:24:38 +02:00

backtracetest.c

…

bounds.c

…

capability.c

exec: Ensure mm->user_ns contains the execed files

2017-01-06 11:16:14 +01:00

cgroup_freezer.c

cgroup: fix handling of multi-destination migration from subtree_control enabling

2015-12-03 10:18:21 -05:00

cgroup_pids.c

cgroup_pids: don't account for the root cgroup

2015-12-03 10:18:21 -05:00

cgroup.c

cgroup: Fix deadlock in cpu hotplug path

2018-10-13 09:11:33 +02:00

compat.c

…

configs.c

…

context_tracking.c

…

cpu_pm.c

…

cpu.c

stable-fixup: hotplug: fix unused function warning

2017-01-12 11:22:48 +01:00

cpuset.c

sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs

2017-10-12 11:27:35 +02:00

crash_dump.c

…

cred.c

cred: Reject inodes with invalid ids in set_create_file_as()

2016-09-15 08:27:49 +02:00

delayacct.c

…

dma.c

…

elfcore.c

…

exec_domain.c

…

exit.c

kernel/exit.c: avoid undefined behaviour when calling wait4()

2018-05-26 08:48:51 +02:00

extable.c

kernel/extable.c: mark core_kernel_text notrace

2017-07-21 07:44:56 +02:00

fork.c

kthread: Fix use-after-free if kthread fork fails

2018-09-19 22:48:55 +02:00

freezer.c

…

futex_compat.c

ptrace: use fsuid, fsgid, effective creds for fs access checks

2016-02-25 12:01:16 -08:00

futex.c

futex: futex_wake_op, fix sign_extend32 sign bits

2018-05-26 08:48:51 +02:00

groups.c

kernel: make groups_sort calling a responsibility group_info allocators

2018-01-10 09:27:10 +01:00

hung_task.c

…

irq_work.c

…

jump_label.c

jump_label: Invoke jump_label_test() via early_initcall()

2017-12-16 10:33:55 +01:00

kallsyms.c

…

kcmp.c

ptrace: use fsuid, fsgid, effective creds for fs access checks

2016-02-25 12:01:16 -08:00

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

…

Kconfig.preempt

…

kexec_core.c

…

kexec_file.c

kexec: fix double-free when failing to relocate the purgatory

2016-09-24 10:07:36 +02:00

kexec_internal.h

…

kexec.c

…

kmod.c

…

kprobes.c

kprobes: Make list and blacklist root user read only

2018-09-05 09:18:40 +02:00

ksysfs.c

…

kthread.c

kthread, tracing: Don't expose half-written comm when creating kthreads

2018-09-09 20:04:34 +02:00

latencytop.c

…

Makefile

…

membarrier.c

Fix: Disable sys_membarrier when nohz_full is enabled

2017-03-12 06:37:26 +01:00

memremap.c

mm: fix devm_memremap_pages crash, use mem_hotplug_{begin, done}

2017-01-19 20:17:18 +01:00

module_signing.c

…

module-internal.h

…

module.c

module: exclude SHN_UNDEF symbols from kallsyms api

2018-10-10 08:52:07 +02:00

notifier.c

…

nsproxy.c

…

padata.c

padata: free correct variable

2017-05-20 14:27:02 +02:00

panic.c

kernel/panic.c: add missing \n

2017-07-05 14:37:19 +02:00

params.c

…

pid_namespace.c

pid_ns: Sleep in TASK_INTERRUPTIBLE in zap_pid_ns_processes

2017-05-25 14:30:11 +02:00

pid.c

pidns: disable pid allocation if pid_ns_prepare_proc() is failed in alloc_pid()

2018-04-13 19:50:03 +02:00

profile.c

profile: hide unused functions when !CONFIG_PROC_FS

2018-02-25 11:03:44 +01:00

ptrace.c

ptrace: Properly initialize ptracer_cred on fork

2017-06-14 13:16:20 +02:00

range.c

…

reboot.c

…

relay.c

kernel/relay.c: limit kmalloc size to KMALLOC_MAX_SIZE

2018-05-30 07:49:00 +02:00

resource.c

resource: fix integer overflow at reallocation

2018-04-24 09:32:05 +02:00

seccomp.c

seccomp: Move speculation migitation control to arch code

2018-07-25 10:18:27 +02:00

signal.c

kernel/signal.c: avoid undefined behaviour in kill_something_info

2018-05-30 07:48:52 +02:00

smp.c

…

smpboot.c

…

smpboot.h

…

softirq.c

…

stacktrace.c

…

stop_machine.c

kernel: remove stop_machine() Kconfig dependency

2015-12-12 10:15:34 -08:00

sys_ni.c

…

sys.c

sys: don't hold uts_sem while accessing userspace memory

2018-09-09 20:04:35 +02:00

sysctl_binary.c

fs/coredump: prevent fsuid=0 dumps into user-controlled directories

2016-04-12 09:08:58 -07:00

sysctl.c

sched/sysctl: Check user input value of sysctl_sched_time_avg

2018-09-05 09:18:33 +02:00

task_work.c

…

taskstats.c

…

test_kprobes.c

…

torture.c

…

tracepoint.c

tracepoint: Do not warn on ENOMEM

2018-05-16 10:06:47 +02:00

tsacct.c

…

uid16.c

kernel: make groups_sort calling a responsibility group_info allocators

2018-01-10 09:27:10 +01:00

up.c

…

user_namespace.c

userns: move user access out of the mutex

2018-09-09 20:04:35 +02:00

user-return-notifier.c

…

user.c

…

utsname_sysctl.c

sys: don't hold uts_sem while accessing userspace memory

2018-09-09 20:04:35 +02:00

utsname.c

…

watchdog.c

kernel/watchdog: use nmi registers snapshot in hardlockup handler

2017-01-06 11:16:16 +01:00

workqueue_internal.h

workqueue: Fix NULL pointer dereference

2017-11-15 17:13:11 +01:00

workqueue.c

workqueue: use put_device() instead of kfree()

2018-05-30 07:49:04 +02:00