TononixOS/ubports_kernel_google_msm
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ubports_kernel_google_msm/kernel
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Colin Cross 858d22cd4d freezer: skip waking up tasks with PF_FREEZER_SKIP set 
Android goes through suspend/resume very often (every few seconds when
on a busy wifi network with the screen off), and a significant portion
of the energy used to go in and out of suspend is spent in the
freezer.  If a task has called freezer_do_not_count(), don't bother
waking it up.  If it happens to wake up later it will call
freezer_count() and immediately enter the refrigerator.

Combined with patches to convert freezable helpers to use
freezer_do_not_count() and convert common sites where idle userspace
tasks are blocked to use the freezable helpers, this reduces the
time and energy required to suspend and resume.

Change-Id: I6ba019d24273619849af757a413271da3261d7db
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-07-12 14:22:56 -07:00
..
debug
debug: add parameters to prevent entering debug mode on errors
2012-05-18 17:03:10 -07:00
events
perf: Treat attr.config as u64 in perf_swevent_init()
2013-05-14 09:12:03 -07:00
gcov
…
irq
Merge branch 'goog/googly' (early part) into goog/msm-soc-3.4
2013-02-25 11:25:46 -08:00
power
freezer: shorten freezer sleep time using exponential backoff
2013-07-12 14:22:56 -07:00
sched
sched: remove migration notification from RT class
2013-05-30 16:21:44 +00:00
time
timekeeping: fix 32-bit overflow in get_monotonic_boottime
2013-04-18 16:08:05 -07:00
trace
trace/events: add gpu trace events
2013-04-18 16:08:19 -07:00
.gitignore
…
acct.c
Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2012-01-08 12:19:57 -08:00
async.c
kernel/async: remove redundant declaration.
2012-01-13 09:32:18 +10:30
audit_tree.c
…
audit_watch.c
…
audit.c
constify path argument of audit_log_d_path()
2012-03-20 21:29:40 -04:00
audit.h
audit: remove AUDIT_SETUP_CONTEXT as it isn't used
2012-01-17 16:16:57 -05:00
auditfilter.c
audit: allow interfield comparison in audit rules
2012-01-17 16:17:01 -05:00
auditsc.c
kernel-doc: fix new warnings in auditsc.c
2012-01-23 08:44:53 -08:00
backtracetest.c
…
bounds.c
…
capability.c
Revert "capabitlies: ns_capable can use the cap helpers rather than lsm call"
2012-01-17 10:19:41 -08:00
cgroup_freezer.c
cgroup: remove cgroup_subsys argument from callbacks
2012-02-02 09:20:22 -08:00
cgroup.c
cgroup: Remove call to synchronize_rcu in cgroup_attach_task
2012-04-09 13:53:12 -07:00
compat.c
compat: Fix RT signal mask corruption via sigprocmask
2012-05-10 08:58:33 -07:00
configs.c
…
cpu_pm.c
…
cpu.c
Move x86_64 idle notifiers to generic
2012-04-09 13:57:52 -07:00
cpuset.c
Merge tag 'for-linus' of git://github.com/rustyrussell/linux
2012-04-02 08:53:24 -07:00
crash_dump.c
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
cred.c
cred: copy_process() should clear child->replacement_session_keyring
2012-04-11 08:20:11 -07:00
delayacct.c
…
dma.c
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
elfcore.c
…
exec_domain.c
…
exit.c
lockdep: remove task argument from debug_check_no_locks_held
2013-07-12 14:22:56 -07:00
extable.c
…
fork.c
android/lowmemorykiller: Ignore tasks with freed mm
2013-03-15 17:08:47 -07:00
freezer.c
freezer: skip waking up tasks with PF_FREEZER_SKIP set
2013-07-12 14:22:56 -07:00
futex_compat.c
futex: Mark get_robust_list as deprecated
2012-03-29 11:37:17 +02:00
futex.c
futex: Mark get_robust_list as deprecated
2012-03-29 11:37:17 +02:00
groups.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
hrtimer.c
hrtimer: Don't reinitialize a cpu_base's lock on CPU_UP
2013-06-24 18:55:52 +00:00
hung_task.c
hung_task: fix the broken rcu_lock_break() logic
2012-03-05 15:49:42 -08:00
irq_work.c
irq_work: fix compile failure on tile from missing include
2012-04-13 13:15:16 -04:00
itimer.c
itimer: Use printk_once instead of WARN_ONCE
2012-04-10 11:00:30 +02:00
jump_label.c
static keys: Inline the static_key_enabled() function
2012-02-28 20:01:08 +01:00
kallsyms.c
vsprintf: Fix %ps on non symbols when using kallsyms
2013-02-08 15:14:22 -08:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage
2012-03-23 13:18:57 +01:00
Kconfig.preempt
locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage
2012-03-23 13:18:57 +01:00
kexec.c
Merge branch 'akpm' (Andrew's patch-bomb)
2012-03-28 17:19:28 -07:00
kfifo.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
kmod.c
PM / Sleep: Mitigate race between the freezer and request_firmware()
2012-03-28 23:30:28 +02:00
kprobes.c
kprobes: return proper error code from register_kprobe()
2012-03-05 15:49:42 -08:00
ksysfs.c
kernel: ksysfs.c is implicitly using stat.h
2011-10-31 09:20:13 -04:00
kthread.c
freezer: kill unused set_freezable_with_signal()
2011-11-23 09:28:17 -08:00
latencytop.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
lockdep_internals.h
…
lockdep_proc.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
lockdep_states.h
…
lockdep.c
lockdep: remove task argument from debug_check_no_locks_held
2013-07-12 14:22:56 -07:00
Makefile
sysctl: Move the implementation into fs/proc/proc_sysctl.c
2012-01-24 16:37:54 -08:00
module.c
module: Remove module size limit
2012-03-26 12:50:53 +10:30
mutex-debug.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
mutex-debug.h
…
mutex.c
sched/rt: Use schedule_preempt_disabled()
2012-03-01 10:28:03 +01:00
mutex.h
…
notifier.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
nsproxy.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
padata.c
padata: Fix cpu hotplug
2012-03-29 19:52:46 +08:00
panic.c
coresight: abort coresight tracing on kernel panic
2013-03-15 17:06:14 -07:00
params.c
params: <level>_initcall-like kernel parameters
2012-03-26 12:50:51 +10:30
pid_namespace.c
pidns: add reboot_pid_ns() to handle the reboot syscall
2012-03-28 17:14:36 -07:00
pid.c
vfs: fix panic in __d_lookup() with high dentry hashtable counts
2012-02-13 20:45:38 -05:00
posix-cpu-timers.c
[S390] cputime: add sparse checking and cleanup
2011-12-15 14:56:19 +01:00
posix-timers.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
printk.c
printk: fix buffer overflow when calling log_prefix function from call_console_drivers
2013-04-18 16:09:23 -07:00
profile.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
ptrace.c
ptrace: ensure arch_ptrace/ptrace_request can never race with SIGKILL
2013-04-18 16:08:07 -07:00
range.c
range: fix bogus misuse of module.h to get printk()
2011-10-31 09:20:11 -04:00
rcu.h
rcu: Allow nesting of rcu_idle_enter() and rcu_idle_exit()
2012-02-21 09:06:12 -08:00
rcupdate.c
rcu: Check for illegal use of RCU from offlined CPUs
2012-02-21 09:06:03 -08:00
rcutiny_plugin.h
rcu: Simplify unboosting checks
2012-02-21 09:03:43 -08:00
rcutiny.c
rcu: Add RCU_NONIDLE() for idle-loop RCU read-side critical sections
2012-02-21 09:06:13 -08:00
rcutorture.c
PTR_ERR should be called before its argument is cleared.
2012-02-21 09:06:10 -08:00
rcutree_plugin.h
rcu: Hold off RCU_FAST_NO_HZ after timer posted
2012-02-21 09:42:30 -08:00
rcutree_trace.c
rcu: Rework detection of use of RCU by offline CPUs
2012-02-21 09:06:07 -08:00
rcutree.c
rcu: Fix day-one dyntick-idle stall-warning bug
2013-02-08 15:14:25 -08:00
rcutree.h
rcu: Rework detection of use of RCU by offline CPUs
2012-02-21 09:06:07 -08:00
relay.c
relay: prevent integer overflow in relay_open()
2012-02-10 09:04:49 +01:00
res_counter.c
net: introduce res_counter_charge_nofail() for socket allocations
2012-01-22 15:08:46 -05:00
resource.c
DMM: Fix for movable bytes near end of address space
2013-02-20 02:50:30 -08:00
rtmutex_common.h
…
rtmutex-debug.c
lockdep, rtmutex, bug: Show taint flags on error
2011-12-06 08:16:49 +01:00
rtmutex-debug.h
…
rtmutex-tester.c
rtmutex-tester: convert sysdev_class to a regular subsystem
2011-12-14 14:54:22 -08:00
rtmutex.c
Revert "rcu: Permit rt_mutex_unlock() with irqs disabled"
2011-12-11 10:33:18 -08:00
rtmutex.h
…
rwsem.c
Remove all #inclusions of asm/system.h
2012-03-28 18:30:03 +01:00
seccomp.c
seccomp: audit abnormal end to a process due to seccomp
2012-01-17 16:16:55 -05:00
semaphore.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
signal.c
HACK: ARM: disable sleeping while atomic warning in do_signal
2013-07-12 14:22:55 -07:00
smp.c
smp: add func to IPI cpus based on parameter func
2012-03-28 17:14:35 -07:00
softirq.c
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-03-20 10:32:09 -07:00
spinlock.c
locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage
2012-03-23 13:18:57 +01:00
srcu.c
rcu: Call out dangers of expedited RCU primitives
2012-02-21 09:06:08 -08:00
stacktrace.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
stop_machine.c
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
sys_ni.c
Cross Memory Attach
2011-10-31 17:30:44 -07:00
sys.c
use clamp_t in UNAME26 fix
2013-03-04 12:48:15 -08:00
sysctl_binary.c
msm: 8x55: put reason for boot in procfs from SMEM
2013-02-08 15:14:28 -08:00
sysctl.c
Revert "sched: add sysctl for controlling task migrations on wake"
2013-03-15 17:13:14 -07:00
taskstats.c
…
test_kprobes.c
…
time.c
time: Remove bogus comments
2012-03-15 18:17:55 -07:00
timeconst.pl
…
timer.c
timer: Don't reinitialize the cpu base lock during CPU_UP_PREPARE
2013-06-24 18:55:42 +00:00
tracepoint.c
static keys: Introduce 'struct static_key', static_key_true()/false() and static_key_slow_[inc|dec]()
2012-02-24 10:05:59 +01:00
tsacct.c
[S390] cputime: add sparse checking and cleanup
2011-12-15 14:56:19 +01:00
uid16.c
…
up.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
user_namespace.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
user-return-notifier.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
user.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
utsname_sysctl.c
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
utsname.c
kernel: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
wait.c
lockdep/waitqueues: Add better annotation
2011-12-21 10:07:39 +01:00
watchdog.c
kernel/watchdog.c: add comment to watchdog() exit path
2012-03-23 16:58:32 -07:00
workqueue_sched.h
…
workqueue.c
workqueue: skip nr_running sanity check in worker_enter_idle() if trustee is active
2013-03-04 12:48:24 -08:00