Thomas Gleixner f97960fbdd kernel/printk: Block cpuhotplug callback when tasks are frozen ... The recent conversion of the console hotplug notifier to the state machine missed the fact, that the notifier only operated on the non frozen transitions. As a consequence the console_lock/unlock() pair is also invoked during suspend, which results in a lockdep warning. Restore the previous state by making the lock/unlock conditional on !tasks_frozen. Fixes: 90b14889d2 ("kernel/printk: Convert to hotplug state machine") Reported-and-tested-by: Borislav Petkov <bp@alien8.de> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1611171729320.3645@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>		2016-11-17 19:44:58 +01:00
..
bpf	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
configs	config: android: enable CONFIG_SECCOMP	2016-10-11 15:06:32 -07:00
debug
events	Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-10-28 16:27:16 -07:00
gcov	gcov: add support for gcc version >= 6	2016-07-15 14:54:27 +09:00
irq	kernel/irq: Export irq_set_parent()	2016-10-21 10:21:38 +02:00
livepatch	livepatch/module: make TAINT_LIVEPATCH module-specific	2016-08-26 14:42:08 +02:00
locking	locking/lglock: Remove lglock implementation	2016-09-22 15:25:56 +02:00
power	PM / suspend: Fix missing KERN_CONT for suspend message	2016-10-24 14:38:02 +02:00
printk	kernel/printk: Block cpuhotplug callback when tasks are frozen	2016-11-17 19:44:58 +01:00
rcu	This adds a new gcc plugin named "latent_entropy". It is designed to	2016-10-15 10:03:15 -07:00
sched	sched/core: Remove pointless printout in sched_show_task()	2016-11-03 07:31:34 +01:00
time	timers: Prevent base clock corruption when forwarding	2016-10-25 16:32:50 +02:00
trace	Disable the __builtin_return_address() warning globally after all	2016-10-12 10:23:41 -07:00
.gitignore
acct.c
async.c
audit_fsnotify.c
audit_tree.c	audit: cleanup prune_tree_thread	2016-04-04 09:46:47 -04:00
audit_watch.c	Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit	2016-09-01 15:55:56 -07:00
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	Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit	2016-07-29 17:54:17 -07:00
auditfilter.c	audit: add fields to exclude filter by reusing user filter	2016-06-27 11:01:00 -04:00
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
bounds.c
capability.c	kernel: Add noaudit variant of ns_capable()	2016-06-06 20:16:18 +10:00
cgroup_freezer.c
cgroup_pids.c	cgroup: Use lld instead of ld when printing pids controller events_limit	2016-06-21 15:03:36 -04:00
cgroup.c	Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2016-10-14 12:18:50 -07:00
compat.c
configs.c
context_tracking.c
cpu_pm.c
cpu.c	cpu/hotplug: Use distinct name for cpu_hotplug.dep_map	2016-10-16 11:09:32 +02:00
cpuset.c	Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2016-10-14 12:18:50 -07:00
crash_dump.c
cred.c	cred: Reject inodes with invalid ids in set_create_file_as()	2016-06-30 18:05:09 -05:00
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c	mm, oom: enforce exit_oom_victim on current task	2016-10-07 18:46:28 -07:00
extable.c
fork.c	fork: Add task stack refcounting sanity check and prevent premature task stack freeing	2016-11-01 07:39:17 +01:00
freezer.c	freezer, oom: check TIF_MEMDIE on the correct task	2016-07-28 16:07:41 -07:00
futex_compat.c
futex.c	futex: Add some more function commentry	2016-09-05 17:20:18 +02:00
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
jump_label.c	powerpc updates for 4.8 #2	2016-08-05 09:00:54 -04:00
kallsyms.c
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c	kcov: properly check if we are in an interrupt	2016-10-27 18:43:42 -07:00
kexec_core.c	kexec: add restriction on kexec_load() segment sizes	2016-08-02 19:35:31 -04:00
kexec_file.c	kexec: fix double-free when failing to relocate the purgatory	2016-09-01 17:52:01 -07:00
kexec_internal.h
kexec.c	kexec: allow architectures to override boot mapping	2016-08-02 19:35:27 -04:00
kmod.c
kprobes.c	kprobes: include <asm/sections.h> instead of <asm-generic/sections.h>	2016-10-11 15:06:31 -07:00
ksysfs.c	kexec: add a kexec_crash_loaded() function	2016-08-02 19:35:30 -04:00
kthread.c	kthread: better support freezable kthread workers	2016-10-11 15:06:33 -07:00
latencytop.c
Makefile	userns: Add per user namespace sysctls.	2016-08-08 13:18:58 -05:00
membarrier.c
memremap.c	mm: fix cache mode of dax pmd mappings	2016-09-09 17:34:46 -07:00
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	livepatch/module: make TAINT_LIVEPATCH module-specific	2016-08-26 14:42:08 +02:00
notifier.c
nsproxy.c
padata.c	padata: Convert to hotplug state machine	2016-09-19 21:44:30 +02:00
panic.c	x86/panic: replace smp_send_stop() with kdump friendly version in panic path	2016-10-11 15:06:32 -07:00
params.c
pid_namespace.c	Merge branch 'nsfs-ioctls' into HEAD	2016-09-22 20:00:36 -05:00
pid.c	remove lots of IS_ERR_VALUE abuses	2016-05-27 15:26:11 -07:00
profile.c	profile: Convert to hotplug state machine	2016-07-15 10:41:42 +02:00
ptrace.c	mm: replace access_process_vm() write parameter with gup_flags	2016-10-19 08:31:25 -07:00
range.c
reboot.c
relay.c	relay: Use irq_work instead of plain timer for deferred wakeup	2016-10-11 15:06:32 -07:00
resource.c	/proc/iomem: only expose physical resource addresses to privileged users	2016-04-14 12:56:09 -07:00
seccomp.c	seccomp: Fix tracer exit notifications during fatal signals	2016-08-30 16:12:46 -07:00
signal.c	x86/signal: Add SA_{X32,IA32}_ABI sa_flags	2016-09-14 21:28:11 +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
softirq.c	softirq: Display IRQ_POLL for irq-poll statistics	2016-10-21 15:45:47 -06:00
stacktrace.c
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	prctl: make PR_SET_THP_DISABLE wait for mmap_sem killable	2016-05-23 17:04:14 -07:00
sysctl_binary.c	kernel/sysctl_binary.c: use generic UUID library	2016-05-20 17:58:30 -07:00
sysctl.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 13:04:49 -07:00
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: use the libnl API to align nlattr on 64-bit	2016-04-23 20:13:25 -04:00
test_kprobes.c
torture.c	torture: Convert torture_shutdown() to hrtimer	2016-08-22 10:01:49 -07:00
tracepoint.c	kernel/...: convert pr_warning to pr_warn	2016-03-22 15:36:02 -07:00
tsacct.c
ucount.c	mntns: Add a limit on the number of mount namespaces.	2016-08-31 07:28:35 -05:00
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
user.c
utsname_sysctl.c
utsname.c	Merge branch 'nsfs-ioctls' into HEAD	2016-09-22 20:00:36 -05:00
watchdog.c	Revert "perf/x86/intel, watchdog: Switch NMI watchdog to ref cycles on x86"	2016-07-10 20:58:36 +02:00
workqueue_internal.h
workqueue.c	kthread: rename probe_kthread_data() to kthread_probe_data()	2016-10-11 15:06:33 -07:00