Stephen Boyd 8aad725c70 sched_clock: Avoid corrupting hrtimer tree during suspend ... During suspend we call sched_clock_poll() to update the epoch and accumulated time and reprogram the sched_clock_timer to fire before the next wrap-around time. Unfortunately, sched_clock_poll() doesn't restart the timer, instead it relies on the hrtimer layer to do that and during suspend we aren't calling that function from the hrtimer layer. Instead, we're reprogramming the expires time while the hrtimer is enqueued, which can cause the hrtimer tree to be corrupted. Furthermore, we restart the timer during suspend but we update the epoch during resume which seems counter-intuitive. Let's fix this by saving the accumulated state and canceling the timer during suspend. On resume we can update the epoch and restart the timer similar to what we would do if we were starting the clock for the first time. Change-Id: Iee2a1cca42e5b681347ea0607e9af420a63892d7 CRs-Fixed: 696826 Fixes: a08ca5d108 "sched_clock: Use an hrtimer instead of timer" Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>		2018-01-02 22:36:45 +03:00
..
debug	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
events	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
gcov
irq	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
power	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
sched	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
time	sched_clock: Avoid corrupting hrtimer tree during suspend	2018-01-02 22:36:45 +03:00
trace	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
.gitignore	kernel/hz.bc: ignore.	2016-10-29 23:12:15 +08:00
acct.c
async.c
audit.c	audit: wait_for_auditd() should use TASK_UNINTERRUPTIBLE	2014-04-14 06:44:15 -07:00
audit.h
audit_tree.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
audit_watch.c	get rid of kern_path_parent()	2017-09-22 19:11:54 +03:00
auditfilter.c
auditsc.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
backtracetest.c
bounds.c
capability.c
cgroup.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
cgroup_freezer.c	cgroup: cgroup_subsys->fork() should be called after the task is added to css_set	2014-03-11 16:10:03 -07:00
compat.c
configs.c
cpu.c	CPU hotplug: Provide lockless versions of callback registration functions	2018-01-01 21:26:45 +03:00
cpu_pm.c
cpuset.c	cpuset: PF_SPREAD_PAGE and PF_SPREAD_SLAB should be atomic flags	2014-12-01 18:02:38 +08:00
crash_dump.c
cred.c
delayacct.c
dma.c
elfcore.c
exec_domain.c	ANDROID: exec_domains: Disable request_module() call for personalities	2017-12-27 22:46:26 +03:00
exit.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
extable.c
fork.c	seccomp: Replace BUG(!spin_is_locked()) with assert_spin_lock	2017-12-27 22:42:09 +03:00
freezer.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
futex.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
futex_compat.c
groups.c
hrtimer.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
hung_task.c
irq_work.c
itimer.c
jump_label.c
kallsyms.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kexec.c
kfifo.c
kmod.c
kprobes.c
ksysfs.c	rcu: Add a module parameter to force use of expedited RCU primitives	2016-10-29 23:12:17 +08:00
kthread.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
latencytop.c
lglock.c	brlocks/lglocks: turn into functions	2015-07-13 11:17:40 -07:00
lockdep.c
lockdep_internals.h
lockdep_proc.c
lockdep_states.h
Makefile	hotplug: Fix UP bug in smpboot hotplug code	2016-10-29 23:12:39 +08:00
module.c	module: Fix locking in symbol_put_addr()	2016-04-27 18:55:19 +08:00
mutex-debug.c
mutex-debug.h
mutex.c
mutex.h
notifier.c
nsproxy.c	userns: make each net (net_ns) belong to a user_ns	2017-09-01 13:38:07 +03:00
padata.c
panic.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
params.c
pid.c	proc: Usable inode numbers for the namespace file descriptors.	2015-07-13 11:18:01 -07:00
pid_namespace.c	proc: Usable inode numbers for the namespace file descriptors.	2015-07-13 11:18:01 -07:00
posix-cpu-timers.c
posix-timers.c	posix-timers: Fix stack info leak in timer_create()	2015-02-02 17:05:05 +08:00
printk.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
profile.c
ptrace.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
range.c
rcu.h	rcu: Add a module parameter to force use of expedited RCU primitives	2016-10-29 23:12:17 +08:00
rcupdate.c	rcu: Make exit_rcu() more precise and consolidate	2016-10-29 23:12:17 +08:00
rcutiny.c	rcu: Correctly handle non-empty Tiny RCU callback list with none ready	2015-10-22 09:20:02 +08:00
rcutiny_plugin.h	rcu: Make exit_rcu() more precise and consolidate	2016-10-29 23:12:17 +08:00
rcutorture.c
rcutree.c	rcu: Use smp_hotplug_thread facility for RCUs per-CPU kthread	2016-10-29 23:12:39 +08:00
rcutree.h	rcu: Use smp_hotplug_thread facility for RCUs per-CPU kthread	2016-10-29 23:12:39 +08:00
rcutree_plugin.h	rcu: Use smp_hotplug_thread facility for RCUs per-CPU kthread	2016-10-29 23:12:39 +08:00
rcutree_trace.c	rcu: Use smp_hotplug_thread facility for RCUs per-CPU kthread	2016-10-29 23:12:39 +08:00
relay.c
res_counter.c
resource.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
rtmutex-debug.c
rtmutex-debug.h	rtmutex: Handle deadlock detection smarter	2014-07-17 15:39:50 -07:00
rtmutex-tester.c
rtmutex.c	rtmutex: Plug slow unlock race	2014-07-17 15:39:50 -07:00
rtmutex.h	rtmutex: Handle deadlock detection smarter	2014-07-17 15:39:50 -07:00
rtmutex_common.h
rwsem.c
seccomp.c	seccomp: Replace BUG(!spin_is_locked()) with assert_spin_lock	2017-12-27 22:42:09 +03:00
semaphore.c
signal.c	BACKPORT: signal: allow to send any siginfo to itself	2017-12-27 22:49:08 +03:00
smp.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
smpboot.c	smpboot: use kmemleak_not_leak for smpboot_thread_data	2016-10-29 23:12:40 +08:00
smpboot.h	smpboot: Provide infrastructure for percpu hotplug threads	2016-10-29 23:12:39 +08:00
softirq.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
spinlock.c
srcu.c
stacktrace.c
stop_machine.c	stop_machine: Mark per cpu stopper enabled early	2016-10-29 23:12:39 +08:00
sys.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
sys_ni.c	seccomp: add "seccomp" syscall	2014-10-31 19:46:27 -07:00
sysctl.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
sysctl_binary.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
taskstats.c
test_kprobes.c
time.c	jiffies: Fix timeval conversion to jiffies	2016-10-29 23:12:15 +08:00
timeconst.bc	kernel: Replace timeconst.pl with a bc script	2016-10-29 23:12:15 +08:00
timer.c	tick: Upstream fixes	2017-08-25 20:00:22 +03:00
tracepoint.c	tracepoint: Do not waste memory on mods with no tracepoints	2014-05-18 05:25:56 -07:00
tsacct.c
uid16.c
up.c
user-return-notifier.c
user.c	proc: Usable inode numbers for the namespace file descriptors.	2015-07-13 11:18:01 -07:00
user_namespace.c	proc: Usable inode numbers for the namespace file descriptors.	2015-07-13 11:18:01 -07:00
utsname.c	proc: Usable inode numbers for the namespace file descriptors.	2015-07-13 11:18:01 -07:00
utsname_sysctl.c
wait.c
watchdog.c	kernel/watchdog.c: touch_nmi_watchdog should only touch local cpu not every one	2016-03-21 09:17:57 +08:00
workqueue.c	Merge remote-tracking branch 'stable/linux-3.4.y' into lineage-15.1	2017-12-27 17:13:15 +03:00
workqueue_sched.h