twx-linux/kernel
Linus Torvalds 7587a4a5a4 - Prevent a tick storm when a dedicated timekeeper CPU in nohz_full
mode runs for prolonged periods with interrupts disabled and ends up
 programming the next tick in the past, leading to that storm
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmGsp+EACgkQEsHwGGHe
 VUpmAA/6A8W0Nb6Doc8B3emuy9qv3NeqLGWqSIKcJnOz0GYhlWuFKGmH6zWQ/ZKZ
 ihjw5fP7aOEytLhLagnn1k2weRZrgBavHaxQskuL3HBFD0mT6Gz1TfJC9JlE5s2Q
 KxaDjRLx5RGJb/KHZDiZv6Kz61Ouh14KfHHymVhZndcPNZ7UjsCgacyUkctGKcoc
 DtNW0Z6tjUGbp1MXyGcOiTiM7hUS8SWsdJbMfn0Eu+/NKvnkua7vwTgEMTwYwrK0
 88sLYyVygL+NHjE9LpSGrRj1HjEV4dSMC3r18UYuWQYkzBvA+/SQbIKD5QoeFmZU
 st5dMBD8Q3KvAWQ8mXE5ymaYaIZxv21PaL1J7lZ3J3osMASH0LkMWXLYoMVtO5rq
 OIpZlODSGLiamGcC5uieoBR/f4Zzn+sEZZ6TyoXWOBv4Cap2XnlJP5WjJ4ARJvzT
 MLX2u8MPPMTL7vtd2Xb4kPZcWH5irrCENXlbz0UG08ZHj4CvBFb+a87f+E4aNUs4
 uBsTf/kS5SihE1ripSCJEnFsc/QgVPr/9jBXQehRcuI4NgT4pUg85LWDj3gSIcH8
 wMRbiX2ND0ZWk89RYaoiDQ6JPGrsnwKvGLRk9ZhFNtUfpycv5JWKwepVbmAKfos+
 JtmG/6kcFQKBofR7EA4Xuh7DHv7LKCRf3MMlAR6Gzx/3K2kyIoQ=
 =Ft9k
 -----END PGP SIGNATURE-----

Merge tag 'timers_urgent_for_v5.16_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fix from Borislav Petkov:

 - Prevent a tick storm when a dedicated timekeeper CPU in nohz_full
   mode runs for prolonged periods with interrupts disabled and ends up
   programming the next tick in the past, leading to that storm

* tag 'timers_urgent_for_v5.16_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timers/nohz: Last resort update jiffies on nohz_full IRQ entry
2021-12-05 08:58:52 -08:00
..
bpf
cgroup
configs
debug
dma
entry signal: Replace force_fatal_sig with force_exit_sig when in doubt 2021-11-19 09:15:58 -06:00
events perf: Ignore sigtrap for tracepoints destined for other tasks 2021-11-23 09:45:37 +01:00
futex
gcov
irq
kcsan
livepatch
locking locking/rwsem: Optimize down_read_trylock() under highly contended case 2021-11-23 09:45:36 +01:00
power PM: hibernate: Fix snapshot partial write lengths 2021-11-24 13:50:18 +01:00
printk
rcu
sched sched/uclamp: Fix rq->uclamp_max not set on first enqueue 2021-12-04 10:56:18 +01:00
time timers/nohz: Last resort update jiffies on nohz_full IRQ entry 2021-12-02 15:07:22 +01:00
trace tracing: Fix a kmemleak false positive in tracing_map 2021-12-01 21:04:34 -05:00
.gitignore
acct.c
async.c
audit_fsnotify.c
audit_tree.c
audit_watch.c
audit.c
audit.h
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c
cfi.c
compat.c
configs.c
context_tracking.c
cpu_pm.c
cpu.c sched/scs: Reset task stack state in bringup_cpu() 2021-11-24 12:20:27 +01:00
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
exec_domain.c
exit.c
extable.c
fail_function.c
fork.c
freezer.c
gen_kheaders.sh
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms.c
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec_core.c
kexec_elf.c
kexec_file.c
kexec_internal.h
kexec.c
kheaders.c
kmod.c
kprobes.c kprobes: Limit max data_size of the kretprobe instances 2021-12-01 21:04:34 -05:00
ksysfs.c
kthread.c
latencytop.c
Makefile
module_signature.c
module_signing.c
module-internal.h
module.c
notifier.c
nsproxy.c
padata.c
panic.c
params.c
pid_namespace.c
pid.c
profile.c
ptrace.c
range.c
reboot.c
regset.c
relay.c
resource_kunit.c
resource.c
rseq.c
scftorture.c
scs.c
seccomp.c
signal.c signal: Replace force_fatal_sig with force_exit_sig when in doubt 2021-11-19 09:15:58 -06:00
smp.c
smpboot.c
smpboot.h
softirq.c timers/nohz: Last resort update jiffies on nohz_full IRQ entry 2021-12-02 15:07:22 +01:00
stackleak.c
stacktrace.c
static_call.c
stop_machine.c
sys_ni.c
sys.c
sysctl-test.c
sysctl.c
task_work.c
taskstats.c
torture.c
tracepoint.c
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c
up.c
user_namespace.c
user-return-notifier.c
user.c
usermode_driver.c
utsname_sysctl.c
utsname.c
watch_queue.c
watchdog_hld.c
watchdog.c
workqueue_internal.h
workqueue.c