CHROMIUM: arch/arm: Remove duplicated code in syscall_trace

This is breaking the ptrace syscall on ARM. Looks like a mismerge in
5ea62181 ("CHROMIUM: arch/arm: move secure_computing into trace").

TEST=ran "strace true"
BUG=chromium-os:36102

Change-Id: Ic377577216bed3672201ca71604f650c1b8b3f0c
Signed-off-by: Michael Spang <spang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/38602
Reviewed-by: Doug Anderson <dianders@chromium.org>
power: bq27541: Convert wakelocks to wakeup sources

Change-Id: I1a66a7494aebe87ee2ebc1fd72066a130c0e9caf
arch/arm/kernel/ptrace.c: fix: warning: 'ip' may be used uninitialized in this function
ASoC: msm: Fix AUXPCM Sample Rate settings

Fix strings for defining sample rates of AUXPCM.
This wrong string causes mixer settings to fail
for anything other than default 8000.

Bug: 13763881

Signed-off-by: Ravi Kumar Alamanda <ralama@codeaurora.org>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
block: Switch from BFQ-v7r5 for 3.4.0 to BFQ-v7r6 for 3.4.0

. IMPROVEMENT: Introduced a new mechanism that helps get the job done
  more quickly for services and applications that create or reactivate
  many parallel I/O-bound processes. Examples are systemd at boot, or
  commands such as git grep.
. CODE IMPROVEMENTS: Small code cleanups and improvements.

Change-Id: I69d00ba360f3b93b25c9f5a722cfe6d8a0df943b
Signed-off-by: Paolo Valente <paolo.valente@unimore.it>
Signed-off-by: Arianna Avanzini <avanzini.arianna@gmail.com>
cpufreq: cpufreq_smartmax: set global RW writeable for all and fix min_sampling_rate
cpufreq: Avoid using global variable total_cpus

The change is to compile on kernels where cpufreq stats are compiled as
a module (CONFIG_CPU_FREQ_STAT=m), because total_cpus is not exported for
module use.

Reported-By: Emilio López <elopez93@gmail.com>
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
Change-Id: I4f3c74f0fac5e8d9449655b26bf3b407b0fe4290
introduce for_each_thread() to replace the buggy while_each_thread()

while_each_thread() and next_thread() should die, almost every lockless
usage is wrong.

1. Unless g == current, the lockless while_each_thread() is not safe.

   while_each_thread(g, t) can loop forever if g exits, next_thread()
   can't reach the unhashed thread in this case. Note that this can
   happen even if g is the group leader, it can exec.

2. Even if while_each_thread() itself was correct, people often use
   it wrongly.

   It was never safe to just take rcu_read_lock() and loop unless
   you verify that pid_alive(g) == T, even the first next_thread()
   can point to the already freed/reused memory.

This patch adds signal_struct->thread_head and task->thread_node to
create the normal rcu-safe list with the stable head.  The new
for_each_thread(g, t) helper is always safe under rcu_read_lock() as
long as this task_struct can't go away.

Note: of course it is ugly to have both task_struct->thread_node and the
old task_struct->thread_group, we will kill it later, after we change
the users of while_each_thread() to use for_each_thread().

Perhaps we can kill it even before we convert all users, we can
reimplement next_thread(t) using the new thread_head/thread_node.  But
we can't do this right now because this will lead to subtle behavioural
changes.  For example, do/while_each_thread() always sees at least one
task, while for_each_thread() can do nothing if the whole thread group
has died.  Or thread_group_empty(), currently its semantics is not clear
unless thread_group_leader(p) and we need to audit the callers before we
can change it.

So this patch adds the new interface which has to coexist with the old
one for some time, hopefully the next changes will be more or less
straightforward and the old one will go away soon.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Sergey Dyasly <dserrg@gmail.com>
Tested-by: Sergey Dyasly <dserrg@gmail.com>
Reviewed-by: Sameer Nanda <snanda@chromium.org>
Acked-by: David Rientjes <rientjes@google.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mandeep Singh Baines <msb@chromium.org>
Cc: "Ma, Xindong" <xindong.ma@intel.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: "Tu, Xiaobing" <xiaobing.tu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: engstk <eng.stk@sapo.pt>

Conflicts:
	kernel/fork.c

Signed-off-by: engstk <eng.stk@sapo.pt>
Disable -fconserve-stack on ARM v2

There are reports that -fconserve-stack misaligns variables on the stack.
Disable it for ARM to work around this gcc bug.

v2: Move top level flags definition up
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
Signed-off-by: engstk <eng.stk@sapo.pt>
ARM: 8165/1: alignment: don't break misaligned NEON load/store

The alignment fixup incorrectly decodes faulting ARM VLDn/VSTn
instructions (where the optional alignment hint is given but incorrect)
as LDR/STR, leading to register corruption. Detect these and correctly
treat them as unhandled, so that userspace gets the fault it expects.

Reported-by: Simon Hosie <simon.hosie@arm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: engstk <eng.stk@sapo.pt>
sched/cpuidle: reduce IPI store. Backport upstream 3.16 scheduler updates

Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: engstk <eng.stk@sapo.pt>
ARM: smp: Wait just 1 second for other CPU to halt

Currently, the busyloop waiting for a 2nd CPU to stop takes about 4
seconds.  Adjust for the overhead of the loop by looping every 1ms
instead of 1us.

Signed-off-by: Chris Fries <C.Fries@motorola.com>
Reviewed-on: http://gerrit.pcs.mot.com/537864
SLT-Approved: Slta Waiver <sltawvr@motorola.com>
Tested-by: Jira Key <jirakey@motorola.com>
Reviewed-by: Check Patch <CHEKPACH@motorola.com>
Reviewed-by: Klocwork kwcheck <klocwork-kwcheck@sourceforge.mot.com>
Reviewed-by: Igor Kovalenko <cik009@motorola.com>
Reviewed-by: Russell Knize <rknize2@motorola.com>
Submit-Approved: Jira Key <jirakey@motorola.com>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Signed-off-by: engstk <eng.stk@sapo.pt>
USB: storage: ene_ub6250: fix warning for the frame size

[-Wframe-larger-than=]

Change-Id: I19f9a88cfa151e932dab30ed6dd34f452340cb5b
fs/namei.c: fix: warning: 'old_path.*' may be used uninitialized in this function
msm: mdss: Override partial update PP block using ioctl

Partial update when enabled blocks all PP ioctls. There is
currently no subtle way to enable PP. Providing an ioctl
to override the blockage of PP ioctls. This would allow
PP to override the blockage caused due to the default
enablement of partial update.

Change-Id: Ia120caa179bfa0414041bacd80328540f24dd6c8
Signed-off-by: Krishna Chaitanya Parimi <cparimi@codeaurora.org>
misc: Update from Oppo release svn9954

Change-Id: Idc1a30e63ee548197bddf6886856e9a02bdfee39
cleanup