Petr Mladek 392cfdd660 kthread_worker: split code for canceling the delayed work timer ...

commit 34b3d53447 upstream.

Patch series "kthread_worker: Fix race between kthread_mod_delayed_work()
and kthread_cancel_delayed_work_sync()".

This patchset fixes the race between kthread_mod_delayed_work() and
kthread_cancel_delayed_work_sync() including proper return value
handling.

This patch (of 2):

Simple code refactoring as a preparation step for fixing a race between
kthread_mod_delayed_work() and kthread_cancel_delayed_work_sync().

It does not modify the existing behavior.

Link: https://lkml.kernel.org/r/20210610133051.15337-2-pmladek@suse.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
Cc: <jenhaochen@google.com>
Cc: Martin Liu <liumartin@google.com>
Cc: Minchan Kim <minchan@google.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-07-11 12:46:41 +02:00

..

bpf

bpf: Check for integer overflow when using roundup_pow_of_two()

2021-02-23 13:59:16 +01:00

configs

config: android: enable CONFIG_SECCOMP

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

debug

kdb: Make memory allocations more robust

2021-03-03 17:44:31 +01:00

events

perf: Fix data race between pin_count increment/decrement

2021-06-16 11:36:35 +02:00

gcov

gcov: add support for GCC 10.1

2020-09-23 08:46:14 +02:00

irq

genirq: Disable interrupts for force threaded handlers

2021-03-24 10:59:26 +01:00

livepatch

livepatch/module: make TAINT_LIVEPATCH module-specific

2016-08-26 14:42:08 +02:00

locking

futex: Handle early deadlock return correctly

2021-03-30 14:41:42 +02:00

power

PM: hibernate: remove the bogus call to get_gendisk() in software_resume()

2020-10-29 09:05:43 +01:00

printk

printk: fix deadlock when kernel panic

2021-03-07 11:25:56 +01:00

rcu

rcuperf: Fix cleanup path for invalid perf_type strings

2019-05-31 06:48:30 -07:00

sched

sched/fair: handle case of task_h_load() returning 0

2020-07-22 09:10:54 +02:00

time

kernel, fs: Introduce and use set_restart_fn() and arch_set_restart_data()

2021-03-24 10:59:25 +01:00

trace

tracing: Do not stop recording comms if the trace file is being read

2021-06-30 08:49:18 -04:00

.gitignore

certs: add .gitignore to stop git nagging about x509_certificate_list

2015-10-21 15:18:35 +01:00

acct.c

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

2018-01-10 09:29:51 +01:00

async.c

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

2018-02-17 13:21:18 +01:00

audit_fsnotify.c

wrappers for ->i_mutex access

2016-01-22 18:04:28 -05:00

audit_tree.c

audit: cleanup prune_tree_thread

2016-04-04 09:46:47 -04:00

audit_watch.c

audit: CONFIG_CHANGE don't log internal bookkeeping as an event

2020-10-01 20:40:07 +02:00

audit.c

audit: fix a net reference leak in audit_list_rules_send()

2021-04-07 12:05:41 +02:00

audit.h

audit: fix a net reference leak in audit_list_rules_send()

2021-04-07 12:05:41 +02:00

auditfilter.c

audit: fix a net reference leak in audit_list_rules_send()

2021-04-07 12:05:41 +02:00

auditsc.c

audit: print empty EXECVE args

2019-11-28 18:28:55 +01:00

backtracetest.c

…

bounds.c

kbuild: fix kernel/bounds.c 'W=1' warning

2018-11-13 11:16:57 -08:00

capability.c

ptrace: Capture the ptracer's creds not PT_PTRACE_CAP

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

cgroup_freezer.c

cgroup: kill cgrp_ss_priv[CGROUP_CANFORK_COUNT] and friends

2015-12-03 10:24:08 -05:00

cgroup_pids.c

cgroup: pids: use atomic64_t for pids->limit

2019-12-21 10:42:02 +01:00

cgroup.c

cgroup1: don't allow '\n' in renaming

2021-06-16 11:36:34 +02:00

compat.c

compat: cleanup coding in compat_get_bitmap() and compat_put_bitmap()

2015-06-04 23:57:18 +02:00

configs.c

…

context_tracking.c

context_tracking: Switch to new static_branch API

2015-11-24 09:56:43 +01:00

cpu_pm.c

kernel/cpu_pm: Fix uninitted local in cpu_pm

2020-06-20 10:24:21 +02:00

cpu.c

kernel/cpu: add arch override for clear_tasks_mm_cpumask() mm handling

2020-12-29 13:44:50 +01:00

cpuset.c

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

2017-10-12 11:51:25 +02:00

crash_dump.c

…

cred.c

memcg: account security cred as well to kmemcg

2020-01-12 11:24:13 +01:00

delayacct.c

kmemcg: account certain kmem allocations to memcg

2016-01-14 16:00:49 -08:00

dma.c

…

exec_domain.c

Remove rest of exec domains.

2015-04-12 21:03:31 +02:00

exit.c

futex: Mark the begin of futex exit explicitly

2021-02-03 23:19:49 +01:00

extable.c

kernel/extable.c: mark core_kernel_text notrace

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

fork.c

futex: Split futex_mm_release() for exit/exec

2021-02-03 23:19:49 +01:00

freezer.c

freezer, oom: check TIF_MEMDIE on the correct task

2016-07-28 16:07:41 -07:00

futex.c

mm, futex: fix shared futex pgoff on shmem huge page

2021-07-11 12:46:40 +02:00

groups.c

kernel: make groups_sort calling a responsibility group_info allocators

2018-01-10 09:29:52 +01:00

hung_task.c

kernel: hung_task.c: disable on suspend

2019-04-20 09:07:52 +02:00

irq_work.c

treewide: Remove old email address

2015-11-23 09:44:58 +01:00

jump_label.c

jump_label: Invoke jump_label_test() via early_initcall()

2017-12-14 09:28:24 +01:00

kallsyms.c

kallsyms: add support for relative offsets in kallsyms address table

2016-03-15 16:55:16 -07:00

kcmp.c

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

2016-01-20 17:09:18 -08:00

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

locking/qrwlock: Rename QUEUE_RWLOCK to QUEUED_RWLOCKS

2015-05-12 09:46:00 +02:00

Kconfig.preempt

…

kcov.c

kcov: ensure irq code sees a valid area

2018-08-03 07:55:12 +02:00

kexec_core.c

objtool, x86: Add several functions and files to the objtool whitelist

2018-06-05 10:28:57 +02:00

kexec_file.c

kernel: kexec_file: fix error return code of kexec_calculate_store_digests()

2021-05-22 10:40:31 +02:00

kexec_internal.h

kexec: move some memembers and definitions within the scope of CONFIG_KEXEC_FILE

2016-01-20 17:09:18 -08:00

kexec.c

kexec: allow architectures to override boot mapping

2016-08-02 19:35:27 -04:00

kmod.c

usermodehelper: reset umask to default before executing user process

2020-10-14 09:48:14 +02:00

kprobes.c

kretprobe: Avoid re-registration of the same kretprobe earlier

2021-02-10 09:09:25 +01:00

ksysfs.c

kexec: add a kexec_crash_loaded() function

2016-08-02 19:35:30 -04:00

kthread.c

kthread_worker: split code for canceling the delayed work timer

2021-07-11 12:46:41 +02:00

latencytop.c

sched/debug: Make schedstats a runtime tunable that is disabled by default

2016-02-09 11:54:23 +01:00

Makefile

elfcore: fix building with clang

2021-02-10 09:09:25 +01:00

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: kill mapping "System RAM" support

2019-01-13 10:03:51 +01:00

module_signing.c

KEYS: Move the point of trust determination to __key_link()

2016-04-11 22:43:43 +01:00

module-internal.h

…

module.c

module: Ignore _GLOBAL_OFFSET_TABLE_ when warning for undefined symbols

2021-03-03 17:44:44 +01:00

notifier.c

x86/mm: split vmalloc_sync_all()

2020-04-02 17:20:26 +02:00

nsproxy.c

cgroup: introduce cgroup namespaces

2016-02-16 13:04:58 -05:00

padata.c

padata: purge get_cpu and reorder_via_wq from padata_do_serial

2020-05-27 16:41:53 +02:00

panic.c

panic: ensure preemption is disabled during panic()

2019-10-17 13:42:25 -07:00

params.c

Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2015-11-09 15:53:39 -08:00

pid_namespace.c

signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig

2019-08-04 09:33:16 +02:00

pid.c

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

2018-04-13 19:47:53 +02:00

profile.c

profile: Convert to hotplug state machine

2016-07-15 10:41:42 +02:00

ptrace.c

ptrace: make ptrace() fail if the tracee changed its pid unexpectedly

2021-05-26 11:29:06 +02:00

range.c

kernel: avoid overflow in cmp_range

2015-01-17 10:02:23 +13:00

reboot.c

reboot: fix overflow parsing reboot cpu number

2020-11-18 18:26:32 +01:00

relay.c

kernel/relay.c: fix memleak on destroy relay channel

2020-08-26 10:29:03 +02:00

resource.c

resource: fix integer overflow at reallocation

2018-04-24 09:34:09 +02:00

seccomp.c

seccomp: Add missing return in non-void function

2021-03-03 17:44:43 +01:00

signal.c

signal: Extend exec_id to 64bits

2020-04-24 07:58:54 +02:00

smp.c

cpu/hotplug: Fix SMT supported evaluation

2018-08-15 18:14:53 +02:00

smpboot.c

kthread/smpboot: do not park in kthread_create_on_cpu()

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

smpboot.h

cpu/hotplug: Create hotplug threads

2016-03-01 20:36:56 +01:00

softirq.c

Mark HI and TASKLET softirq synchronous

2018-08-15 18:14:42 +02:00

stacktrace.c

stacktrace, lockdep: Fix address, newline ugliness

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

stop_machine.c

stop_machine: Use raw spinlocks

2018-08-03 07:55:24 +02:00

sys_ni.c

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

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

sys.c

kernel/sys.c: avoid copying possible padding bytes in copy_to_user

2020-10-01 20:40:04 +02:00

sysctl_binary.c

kernel/sysctl_binary.c: use generic UUID library

2016-05-20 17:58:30 -07:00

sysctl.c

sched/rt: Show the 'sched_rr_timeslice' SCHED_RR timeslice tuning knob in milliseconds

2020-07-09 09:35:55 +02:00

task_work.c

task_work: use READ_ONCE/lockless_dereference, avoid pi_lock if !task_works

2016-08-02 19:35:02 -04:00

taskstats.c

taskstats: fix data-race

2020-01-12 11:24:12 +01:00

test_kprobes.c

…

torture.c

torture: Convert torture_shutdown() to hrtimer

2016-08-22 10:01:49 -07:00

tracepoint.c

tracepoint: Do not fail unregistering a probe due to memory failure

2021-03-03 17:44:38 +01:00

tsacct.c

time, acct: Drop irq save & restore from __acct_update_integrals()

2016-02-29 09:53:09 +01:00

ucount.c

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

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

uid16.c

kernel: make groups_sort calling a responsibility group_info allocators

2018-01-10 09:29:52 +01:00

up.c

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

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

user_namespace.c

userns: move user access out of the mutex

2018-09-09 20:01:24 +02:00

user-return-notifier.c

…

user.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2014-12-17 12:31:40 -08:00

utsname_sysctl.c

sys: don't hold uts_sem while accessing userspace memory

2018-09-09 20:01:24 +02:00

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

workqueue: Fix NULL pointer dereference

2017-11-15 15:53:17 +01:00

workqueue.c

wq: handle VM suspension in stall detection

2021-06-16 11:36:33 +02:00