Odin Ugedal aa36bd8fc1 sched/fair: Fix CFS bandwidth hrtimer expiry type ...

[ Upstream commit 72d0ad7cb5bad265adb2014dbe46c4ccb11afaba ]

The time remaining until expiry of the refresh_timer can be negative.
Casting the type to an unsigned 64-bit value will cause integer
underflow, making the runtime_refresh_within return false instead of
true. These situations are rare, but they do happen.

This does not cause user-facing issues or errors; other than
possibly unthrottling cfs_rq's using runtime from the previous period(s),
making the CFS bandwidth enforcement less strict in those (special)
situations.

Signed-off-by: Odin Ugedal <odin@uged.al>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ben Segall <bsegall@google.com>
Link: https://lore.kernel.org/r/20210629121452.18429-1-odin@uged.al
Signed-off-by: Sasha Levin <sashal@kernel.org>

2021-07-28 11:13:44 +02:00

..

bpf

bpf: Add BPF_F_ANY_ALIGNMENT.

2021-06-10 13:24:08 +02:00

cgroup

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

2021-06-16 11:54:59 +02:00

configs

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debug

kdb: Make memory allocations more robust

2021-03-04 09:39:31 +01:00

dma

swiotlb: fix "x86: Don't panic if can not alloc buffer for swiotlb"

2020-11-18 19:18:51 +01:00

events

perf: Fix data race between pin_count increment/decrement

2021-06-16 11:55:01 +02:00

gcov

gcov: add support for GCC 10.1

2020-09-17 13:45:31 +02:00

irq

genirq/matrix: Prevent allocation counter corruption

2021-05-22 10:59:14 +02:00

livepatch

livepatch: Nullify obj->mod in klp_module_coming()'s error path

2019-10-07 18:57:10 +02:00

locking

locking/mutex: clear MUTEX_FLAGS if wait_list is empty due to signal

2021-05-26 11:48:32 +02:00

power

PM: hibernate: flush swap writer after marking

2021-02-03 23:23:24 +01:00

printk

printk: fix deadlock when kernel panic

2021-03-04 09:39:57 +01:00

rcu

rcu: Avoid data-race in rcu_gp_fqs_check_wake()

2020-02-11 04:33:55 -08:00

sched

sched/fair: Fix CFS bandwidth hrtimer expiry type

2021-07-28 11:13:44 +02:00

time

clocksource: Retry clock read if long delays detected

2021-07-20 16:15:46 +02:00

trace

tracing: Do not reference char * as a string in histograms

2021-07-20 16:16:07 +02:00

.gitignore

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acct.c

acct_on(): don't mess with freeze protection

2019-05-31 06:46:05 -07:00

async.c

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audit_fsnotify.c

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audit_tree.c

audit: Embed key into chunk

2019-12-13 08:51:11 +01:00

audit_watch.c

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

2020-10-01 13:14:33 +02:00

audit.c

audit: fix a net reference leak in audit_list_rules_send()

2020-06-22 09:05:13 +02:00

audit.h

audit: fix a net reference leak in audit_list_rules_send()

2020-06-22 09:05:13 +02:00

auditfilter.c

audit: fix a net reference leak in audit_list_rules_send()

2020-06-22 09:05:13 +02:00

auditsc.c

audit: print empty EXECVE args

2019-12-01 09:17:17 +01:00

backtracetest.c

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bounds.c

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capability.c

LSM: generalize flag passing to security_capable

2020-01-23 08:21:29 +01:00

compat.c

make 'user_access_begin()' do 'access_ok()'

2020-06-22 09:04:58 +02:00

configs.c

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context_tracking.c

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cpu_pm.c

kernel/cpu_pm: Fix uninitted local in cpu_pm

2020-06-22 09:05:28 +02:00

cpu.c

cpu/hotplug: Cure the cpusets trainwreck

2021-07-20 16:16:04 +02:00

crash_core.c

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crash_dump.c

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cred.c

memcg: account security cred as well to kmemcg

2020-01-09 10:19:00 +01:00

delayacct.c

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dma.c

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exec_domain.c

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exit.c

futex: Mark the begin of futex exit explicitly

2021-01-30 13:32:11 +01:00

extable.c

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fail_function.c

fail_function: Remove a redundant mutex unlock

2020-11-24 13:27:23 +01:00

fork.c

futex: Split futex_mm_release() for exit/exec

2021-01-30 13:32:11 +01:00

freezer.c

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futex.c

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

2021-07-11 12:49:30 +02:00

groups.c

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hung_task.c

kernel: hung_task.c: disable on suspend

2019-04-20 09:16:02 +02:00

iomem.c

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irq_work.c

irq_work: Do not raise an IPI when queueing work on the local CPU

2019-05-31 06:46:19 -07:00

jump_label.c

locking/static_key: Fix false positive warnings on concurrent dec/inc

2021-03-04 09:39:30 +01:00

kallsyms.c

kallsyms: Refactor kallsyms_show_value() to take cred

2020-07-16 08:17:26 +02:00

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

kernel/kcov.c: mark write_comp_data() as notrace

2019-02-12 19:47:20 +01:00

kexec_core.c

kernel: kexec: remove the lock operation of system_transition_mutex

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

kexec_file.c

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

2021-05-22 10:59:44 +02:00

kexec_internal.h

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kexec.c

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kmod.c

kmod: make request_module() return an error when autoloading is disabled

2020-04-17 10:48:52 +02:00

kprobes.c

tracing/kprobe: Fix to support kretprobe events on unloaded modules

2021-02-13 13:51:13 +01:00

ksysfs.c

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kthread.c

kthread: prevent deadlock when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync()

2021-07-11 12:49:31 +02:00

latencytop.c

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Makefile

elfcore: fix building with clang

2021-02-10 09:21:06 +01:00

memremap.c

mm/memory_hotplug: shrink zones when offlining memory

2020-01-29 16:43:27 +01:00

module_signing.c

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module-internal.h

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module.c

module: limit enabling module.sig_enforce

2021-06-30 08:48:28 -04:00

notifier.c

x86/mm: split vmalloc_sync_all()

2020-03-25 08:06:13 +01:00

nsproxy.c

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padata.c

padata: purge get_cpu and reorder_via_wq from padata_do_serial

2020-05-27 17:37:36 +02:00

panic.c

kernel/panic.c: do not append newline to the stack protector panic string

2019-12-01 09:17:10 +01:00

params.c

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pid_namespace.c

signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig

2019-07-26 09:14:01 +02:00

pid.c

Fix failure path in alloc_pid()

2019-01-13 09:51:06 +01:00

profile.c

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ptrace.c

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

2021-05-26 11:48:32 +02:00

range.c

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reboot.c

reboot: fix overflow parsing reboot cpu number

2020-11-18 19:18:52 +01:00

relay.c

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

2020-08-26 10:30:59 +02:00

resource.c

resource: fix locking in find_next_iomem_res()

2019-09-16 08:22:20 +02:00

rseq.c

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seccomp.c

seccomp: Add missing return in non-void function

2021-03-04 09:39:54 +01:00

signal.c

ptrace: fix task_join_group_stop() for the case when current is traced

2020-11-10 12:35:53 +01:00

smp.c

smp: Fix smp_call_function_single_async prototype

2021-05-22 10:59:39 +02:00

smpboot.c

kthread: Extract KTHREAD_IS_PER_CPU

2021-02-07 14:48:38 +01:00

smpboot.h

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softirq.c

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stacktrace.c

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stop_machine.c

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sys_ni.c

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sys.c

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

2020-10-01 13:14:29 +02:00

sysctl_binary.c

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sysctl.c

sysctl: handle overflow in proc_get_long

2021-02-07 14:48:37 +01:00

task_work.c

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taskstats.c

taskstats: fix data-race

2020-01-09 10:18:59 +01:00

test_kprobes.c

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torture.c

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tracepoint.c

tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing

2021-07-20 16:15:42 +02:00

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

usermodehelper: reset umask to default before executing user process

2020-10-14 10:31:21 +02:00

up.c

smp: Fix smp_call_function_single_async prototype

2021-05-22 10:59:39 +02:00

user_namespace.c

userns: also map extents in the reverse map to kernel IDs

2018-11-13 11:09:00 -08:00

user-return-notifier.c

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user.c

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utsname_sysctl.c

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utsname.c

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watchdog_hld.c

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watchdog.c

watchdog/softlockup: Enforce that timestamp is valid on boot

2020-02-24 08:34:49 +01:00

workqueue_internal.h

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workqueue.c

wq: handle VM suspension in stall detection

2021-06-16 11:54:57 +02:00