ASoC: dapm: Change mutex lock subclass in dapm

Address the compilation issue by changing the subclass
enum in dapm functions.

Change-Id: Icd31748b1beb7328819de7f8e4a32c128f60c43f
CRs-fixed: 656634
Signed-off-by: Gopikrishnaiah Anandan <agopik@codeaurora.org>
ASoC: dapm: Unlock mutex in error cases

Dapm functions are not unlocking the mutex when an error
is encountered.This change fixes the mutex unlock issue.

Change-Id: Ia7ffaea9a30ae09a501f8f861c62c64d6c110d44
CRs-fixed: 613644
Signed-off-by: Gopikrishnaiah Anandan <agopik@codeaurora.org>
(cherry picked from commit e5d642a37a643bf9ee4606e0a43b6714019fbc4a)
[SCSI] async: introduce 'async_domain' type

This is in preparation for teaching async_synchronize_full() to sync all
pending async work, and not just on the async_running domain.  This
conversion is functionally equivalent, just embedding the existing list
in a new async_domain type.

The .registered attribute is used in a later patch to distinguish
between domains that want to be flushed by async_synchronize_full()
versus those that only expect async_synchronize_{full|cookie}_domain to
be used for flushing.

Change-Id: I9ab0a06052d05da47c0a3d7f3ebc55e3968aa3cc
[jejb: add async.h to scsi_priv.h for struct async_domain]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Tested-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
ASoC: dapm: Fix _PRE and _POST events for DAPM performance improvements

Ever since the DAPM performance improvements we've been marking all widgets
as not dirty after each DAPM run. Since _PRE and _POST events aren't part
of the DAPM graph this has rendered them non-functional, they will never be
marked dirty again and thus will never be run again.

Fix this by skipping them when marking widgets as not dirty.

Change-Id: I5aa40ea131921c3f1d309a6567ddff4fce6ab220
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Cc: stable@vger.kernel.org
regulatory: use correct regulatory initiator on wiphy register

The current regdomain was not always set by the core. This causes
cards with a custom regulatory domain to ignore user initiated changes
if done before the card was registered.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Acked-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Git-commit: 23df0b731954502a9391e739b92927cee4360343
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
CRs-Fixed: 569424
Change-Id: Ia5462145a27f5ecdd7a1eb9f4235992f7a801097
[smihir@codeaurora.org: changes to merge cleanly in older kernel]
Signed-off-by: Mihir Shete <smihir@codeaurora.org>
cfg80211: fix possible circular lock on reg_regdb_search()

When call_crda() is called we kick off a witch hunt search
for the same regulatory domain on our internal regulatory
database and that work gets kicked off on a workqueue, this
is done while the cfg80211_mutex is held. If that workqueue
kicks off it will first lock reg_regdb_search_mutex and
later cfg80211_mutex but to ensure two CPUs will not contend
against cfg80211_mutex the right thing to do is to have the
reg_regdb_search() wait until the cfg80211_mutex is let go.

Change-Id: Ibb44a5325876d77f1549d3938d56d8fbd051b9ba
CRs-Fixed: 655287
Signed-off-by: Santhosh Kumar Padma <skpadma@codeaurora.org>
cfg80211: unblock user hint when cfg80211_regdom is intersected

If the driver is loaded when cfg80211_regdom is intersected then
user hint will fail for the first time since cfg80211 does not
have a check to see if cfg80211_regdom is intersected. Add
a check to see if cf80211_regdom is intersected and allow the
user hint to be processed.

Change-Id: Iba9cdd32470e29d35d3bb35012eb404b7c78d601
CRs-Fixed: 639538
Signed-off-by: Mihir Shete <smihir@codeaurora.org>
nf: xt_qtaguid: fix handling for cases where tunnels are used.

* fix skb->dev vs par->in/out
When there is some forwarding going on, it introduces extra state
around devs associated with xt_action_param->in/out and sk_buff->dev.
E.g.
   par->in and par->out are both set, or
   skb->dev and par->out are both set (and different)
This would lead qtaguid to make the wrong assumption about the
direction and update the wrong device stats.
Now we rely more on par->in/out.

* Fix handling when qtaguid is used as "owner"
When qtaguid is used as an owner module, and sk_socket->file is
not there (happens when tunnels are involved), it would
incorrectly do a tag stats update.

* Correct debug messages.

Bug: 11687690
Change-Id: I2b1ff8bd7131969ce9e25f8291d83a6280b3ba7f
Signed-off-by: JP Abgrall <jpa@google.com>
mm: do not sleep in balance_pgdat if there's no i/o congestion

On a 4GB RAM machine, where Normal zone is much smaller than DMA32 zone,
the Normal zone gets fragmented in time.  This requires relatively more
pressure in balance_pgdat to get the zone above the required watermark.
Unfortunately, the congestion_wait() call in there slows it down for a
completely wrong reason, expecting that there's a lot of
writeback/swapout, even when there's none (much more common).  After a
few days, when fragmentation progresses, this flawed logic translates to
a very high CPU iowait times, even though there's no I/O congestion at
all.  If THP is enabled, the problem occurs sooner, but I was able to
see it even on !THP kernels, just by giving it a bit more time to occur.

The proper way to deal with this is to not wait, unless there's
congestion.  Thanks to Mel Gorman, we already have the function that
perfectly fits the job.  The patch was tested on a machine which nicely
revealed the problem after only 1 day of uptime, and it's been working
great.

Change-Id: I7002ad592243327312139a0de60231c4dc51f6fb
Signed-off-by: Zlatko Calusic <zlatko.calusic@iskon.hr>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
USB: android: release spinlock before queuing work in android_setup

In android_setup we release spinlock after scheduling the work but there
is no need for holding the spinlock during the schedule_work call
is executed this can lead to spinlock timeouts in case where schedule
work takes more time.

So before scheduling work in android_setup we release spinlock to avoid
potential spinlock lockup or timeout.

CRs-Fixed: 661220
Change-Id: Ibf8ff7f07caf20edf9e646fdcef540fbc6441aec
Signed-off-by: Tarun Gupta <tarung@codeaurora.org>
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
Signed-off-by: ChandanaKishori Chiluveru <cchilu@codeaurora.org>
usb: android: Skip the work when set_config arrives with same value twice

Some USB hosts may send SET_CONFIGURATION with same value twice.
The current code implementation processing the 2nd set_config and
schedules the work. The android_work() issues disconnect event to
userspace if SetConfiguration with non-zero value is sent twice.
The userspace applications may disconnect the USB and the device
doesn't connect to the host.

Fix this by avoiding the android_work for the second time SET_CONFIGURATION
request when it receives SetConfiguration request with same configuration
value twice from the host.

CRs-Fixed: 661220
Change-Id: Ic450315a9067b9b679b4936480d125e4e4b7cdf7
Signed-off-by: ChandanaKishori Chiluveru <cchilu@codeaurora.org>
staging: binder: add vm_fault handler

An issue was observed when a userspace task exits.
The page which hits error here is the zero page.
In binder mmap, the whole of vma is not mapped.
On a task crash, when debuggerd reads the binder regions,
the unmapped areas fall to do_anonymous_page in handle_pte_fault,
due to the absence of a vm_fault handler. This results in
zero page being mapped. Later in zap_pte_range, vm_normal_page
returns zero page in the case of VM_MIXEDMAP and it results in the
error.

BUG: Bad page map in process mediaserver  pte:9dff379f pmd:9bfbd831
page:c0ed8e60 count:1 mapcount:-1 mapping:  (null) index:0x0
page flags: 0x404(referenced|reserved)
addr:40c3f000 vm_flags:10220051 anon_vma:  (null) mapping:d9fe0764 index:fd
vma->vm_ops->fault:   (null)
vma->vm_file->f_op->mmap: binder_mmap+0x0/0x274
CPU: 0 PID: 1463 Comm: mediaserver Tainted: G        W    3.10.17+ #1
[<c001549c>] (unwind_backtrace+0x0/0x11c) from [<c001200c>] (show_stack+0x10/0x14)
[<c001200c>] (show_stack+0x10/0x14) from [<c0103d78>] (print_bad_pte+0x158/0x190)
[<c0103d78>] (print_bad_pte+0x158/0x190) from [<c01055f0>] (unmap_single_vma+0x2e4/0x598)
[<c01055f0>] (unmap_single_vma+0x2e4/0x598) from [<c010618c>] (unmap_vmas+0x34/0x50)
[<c010618c>] (unmap_vmas+0x34/0x50) from [<c010a9e4>] (exit_mmap+0xc8/0x1e8)
[<c010a9e4>] (exit_mmap+0xc8/0x1e8) from [<c00520f0>] (mmput+0x54/0xd0)
[<c00520f0>] (mmput+0x54/0xd0) from [<c005972c>] (do_exit+0x360/0x990)
[<c005972c>] (do_exit+0x360/0x990) from [<c0059ef0>] (do_group_exit+0x84/0xc0)
[<c0059ef0>] (do_group_exit+0x84/0xc0) from [<c0066de0>] (get_signal_to_deliver+0x4d4/0x548)
[<c0066de0>] (get_signal_to_deliver+0x4d4/0x548) from [<c0011500>] (do_signal+0xa8/0x3b8)

Add a vm_fault handler which returns VM_FAULT_SIGBUS, and prevents the
wrong fallback to do_anonymous_page.

CRs-Fixed: 673147
Change-Id: I43730a51b6c819538b46c5e4dc5c96c8a384098d
Signed-off-by: Vinayak Menon <vinayakm.list@gmail.com>
Patch-mainline: linux-arm-kernel @ 06/02/14, 18:17
Signed-off-by: Vignesh Radhakrishnan <vigneshr@codeaurora.org>
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
[PATCH] Staging: android: binder: More offset validation.

Make sure offsets don't point to overlapping flat_binder_object
structs.

Change-Id: I425ab0c46fbe2b00ed679c5becf9e8140395eb40
Signed-off-by: Arve HjÃ¸nnevÃ¥g <arve@android.com>
binder: NULL pointer reference

This fix handles a possible NULL pointer reference in
debug message.

CRs-fixed: 642883
Change-Id: Ide78f281ec0cff5cbd8231b85c305d13a892854e
Signed-off-by: Paresh Nakhe <pnakhe@codeaurora.org>
staging: android: ashmem: Avoid deadlock with mmap/shrink

Both ashmem_mmap and ashmem_shrink take the ashmem_lock. It may
be possible for ashmem_mmap to invoke ashmem_shrink:

-000|mutex_lock(lock = 0x0)
-001|ashmem_shrink(?, sc = 0x0) <--- try to take ashmem_mutex again
-002|shrink_slab(shrink = 0xDA5F1CC0, nr_pages_scanned = 0, lru_pages
-002|=
-002|124)
-003|try_to_free_pages(zonelist = 0x0, ?, ?, ?)
-004|__alloc_pages_nodemask(gfp_mask = 21200, order = 1, zonelist =
-004|0xC11D0940,
-005|new_slab(s = 0xE4841E80, ?, node = -1)
-006|__slab_alloc.isra.43.constprop.50(s = 0xE4841E80, gfpflags =
-006|2148925462, ad
-007|kmem_cache_alloc(s = 0xE4841E80, gfpflags = 208)
-008|shmem_alloc_inode(?)
-009|alloc_inode(sb = 0xE480E800)
-010|new_inode_pseudo(?)
-011|new_inode(?)
-012|shmem_get_inode(sb = 0xE480E800, dir = 0x0, ?, dev = 0, flags =
-012|187)
-013|shmem_file_setup(?, ?, flags = 187)
-014|ashmem_mmap(?, vma = 0xC5D64210) <---- Acquire ashmem_mutex
-015|mmap_region(file = 0xDF8E2C00, addr = 1772974080, len = 233472,
-015|flags = 57,
-016|sys_mmap_pgoff(addr = 0, len = 230400, prot = 3, flags = 1, fd =
-016|157, pgoff
-017|ret_fast_syscall(asm)
-->|exception
-018|NUR:0x40097508(asm)
---|end of frame

Avoid this deadlock by using mutex_trylock in ashmem_shrink; if the mutex
is already held, do not attempt to shrink.

Change-Id: I222bbf55856d5849da813b730de0636c80966c8e
CRs-Fixed: 608832
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>