rtc: alarm: Add power-on alarm feature

Android does not support powering up of phone through alarm.
Adding shutdown hook in alarm driver which will set alarm while phone
is going down so as to power-up the phone after alarm expiration.

CRs-Fixed: 432312
Change-Id: I21786d264b93f7c0c660823a0a1a221c1b4df7b2
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
rtc: alarm: Set power-on alarm 120 sec before actual alarm time

This will add extra buffer time for booting-up the device before
actual alarm expiration time.

Change-Id: I02cad84c394a6aab943fff37a1a0de56bb511f56
Signed-off-by: Mohit Aggarwal <maggarwa@codeaurora.org>
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
kernel: alarm: :fix the BUG that device automatically powers on

The value of alarm.time is invalid if we get it by:
    memset(&alarm, 0, sizeof(alarm)).
So function of rtc_set_alarm aborts before it really calls into:
    rtc->ops->set_alarm.
Then we can`t disable the RTC alarm by that. The result is some
alarms enabled by alarm_suspend are not disabled correctly during
alarm_resume. And device will automatically power on.

CRs-fixed: 524051
Change-Id: Ibc99e62878d17ad4f50325630bf0862207e2cf3f
Signed-off-by: Figo Wang <figow@codeaurora.org>
kernel: alarm: add dedicated alarm type for poweroff alarm

Now we use type of RTC_WAKEUP for the poweroff alarm.
Actually lots of other applications also use this type.
But these applications never expect the device will
power on after it has been shut down. So we need to
add dedicated alarm type for the Deskclock or similar
applications.

CRs-fixed: 529674
Change-Id: I9b7911906446daa1aeb5835478c9837f8ef797f2
Signed-off-by: Figo Wang <figow@codeaurora.org>
kernel: alarm: Do not call rtc_alarm_irq_enable in IRQ Disabled context

Currently shutdown hook of alarm driver is calling
the rtc_alarm_irq_enable API in interrupts disabled
context. So fix the alarm_shutdown function to call
in API rtc_alarm_irq_enable in interrupt enabled context.

CRs-Fixed: 591790
Change-Id: Iebd82482be1dc95c6c978b617e1c18eb36e1b6eb
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
arm: msm: add alarm reboot reason

Add alarm reboot reason for power off charging.

Change-Id: If94d0e4a7ec250cfaa61bf578cae9324db05d32c
Signed-off-by: Maria Yu <aiquny@codeaurora.org>
rtc: alarm: have dummy set_power_on_alarm function

When !CONFIG_RTC_CLASS we need to have a dummy set_power_on_alarm
function. Otherwise, it is easy to have build issues.

Change-Id: I39310241cc2e59f672964c8bc0ee4c3607aedf4e
Signed-off-by: Maria Yu <aiquny@codeaurora.org>
rtc: alarm: init power_on_alarm_lock mutex in alarmtimer_rtc_timer_init

Moved mutex_init of power_on_alarm_lock into alarmtimer_rtc_timer_init
so that if CONFIG_RTC_CLASS is not enabled, we dont try to initialize
the mutex.  This fixes a build issue when !CONFIG_RTC_CLASS

Change-Id: I270564b94fd54162aa177a2c9767655098662259
Signed-off-by: Kumar Gala <galak@codeaurora.org>
mm: fix calculation of dirtyable memory

The system uses global_dirtyable_memory() to calculate number of
dirtyable pages/pages that can be allocated to the page cache.  A bug
causes an underflow thus making the page count look like a big unsigned
number.  This in turn confuses the dirty writeback throttling to
aggressively write back pages as they become dirty (usually 1 page at a
time).  This generally only affects systems with highmem because the
underflowed count gets subtracted from the global count of dirtyable
memory.

The problem was introduced with v3.2-4896-gab8fabd

Fix is to ensure we don't get an underflowed total of either highmem or
global dirtyable memory.

Change-Id: Ib0c4a8f99870edc5ded863b88a472f2836c690d2
Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
Signed-off-by: Puneet Kumar <puneetster@chromium.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Tested-by: Damien Wyart <damien.wyart@free.fr>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Git-commit: c8b74c2f6604923de91f8aa6539f8bb934736754
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
mm: fix anon vma naming

Fix two bugs caused by merging anon vma_naming, a typo in
mempolicy.c and a bad merge in sys.c.

Change-Id: Ia4ced447d50573e68195e95ea2f2b4d9456b8a90
Signed-off-by: Colin Cross <ccross@android.com>