Trusty update to 3.16.7-ckt17 stable release

SRU Justification

    Impact:
       The upstream process for stable tree updates is quite similar
       in scope to the Ubuntu SRU process, e.g., each patch has to
       demonstrably fix a bug, and each patch is vetted by upstream
       by originating either directly from Linus' tree or in a minimally
       backported form of that patch. The 3.16.7-ckt17 upstream stable
       patch set is now available. It should be included in the Ubuntu
       kernel as well.

       git://kernel.ubuntu.com/ubuntu/linux.git

    TEST CASE: TBD

       The following patches are in the 3.16.7-ckt17 stable release:

md: use kzalloc() when bitmap is disabled
sparc64: Fix userspace FPU register corruptions.
ARM: OMAP2+: hwmod: Fix _wait_target_ready() for hwmods without sysc
ASoC: pcm1681: Fix setting de-emphasis sampling rate selection
iscsi-target: Fix use-after-free during TPG session shutdown
iscsi-target: Fix iscsit_start_kthreads failure OOPs
iscsi-target: Fix iser explicit logout TX kthread leak
ARM: dts: i.MX35: Fix can support.
ALSA: hda - Apply fixup for another Toshiba Satellite S50D
vhost: actually track log eventfd file
arm64/efi: map the entire UEFI vendor string before reading it
xfs: remote attribute headers contain an invalid LSN
xfs: remote attributes need to be considered data
ALSA: hda - Apply a fixup to Dell Vostro 5480
ALSA: usb-audio: add dB range mapping for some devices
drm/i915: Replace WARN inside I915_READ64_2x32 with retry loop
drm/radeon/combios: add some validation of lvds values
x86/efi: Use all 64 bit of efi_memmap in setup_e820()
ipr: Fix locking for unit attention handling
ipr: Fix incorrect trace indexing
ipr: Fix invalid array indexing for HRRQ
ALSA: hda - Fix MacBook Pro 5,2 quirk
x86/xen: Probe target addresses in set_aliased_prot() before the hypercall
netfilter: ctnetlink: put back references to master ct and expect objects
ipvs: do not use random local source address for tunnels
ipvs: fix crash if scheduler is changed
ipvs: fix crash with sync protocol v0 and FTP
netfilter: nf_conntrack: Support expectations in different zones
NFS: Don't revalidate the mapping if both size and change attr are up to date
ALSA: hda - fix cs4210_spdif_automute()
net/mlx4_core: Fix wrong index in propagating port change event to VFs
niu: don't count tx error twice in case of headroom realloc fails
avr32: handle NULL as a valid clock object
packet: missing dev_put() in packet_do_bind()
packet: tpacket_snd(): fix signed/unsigned comparison
bridge: mdb: fix delmdb state in the notification
net: sched: fix refcount imbalance in actions
act_pedit: check binding before calling tcf_hash_release()
PCI: Restore PCI_MSIX_FLAGS_BIRMASK definition
USB: qcserial/option: make AT URCs work for Sierra Wireless MC7305/MC7355
USB: qcserial: Add support for Dell Wireless 5809e 4G Modem
nfsd: Drop BUG_ON and ignore SECLABEL on absent filesystem
crypto: ixp4xx - Remove bogus BUG_ON on scattered dst buffer
USB: sierra: add 1199:68AB device ID
rbd: fix copyup completion race
md/bitmap: return an error when bitmap superblock is corrupt.
md/raid1: extend spinlock to protect raid1_end_read_request against inconsistencies
thermal: exynos: Disable the regulator on probe failure
MIPS: Fix sched_getaffinity with MT FPAFF enabled
MIPS: Malta: Don't reinitialise RTC
MIPS: do_mcheck: Fix kernel code dump with EVA
MIPS: show_stack: Fix stack trace with EVA
MIPS: Flush RPS on kernel entry with EVA
xhci: fix off by one error in TRB DMA address boundary check
drivers/usb: Delete XHCI command timer if necessary
ALSA: fireworks/firewire-lib: add support for recent firmware quirk
mm, vmscan: Do not wait for page writeback for GFP_NOFS allocations
MIPS: Make set_pte() SMP safe.
ipc: modify message queue accounting to not take kernel data structures into account
ocfs2: fix BUG in ocfs2_downconvert_thread_do_work()
fsnotify: fix oops in fsnotify_clear_marks_by_group_flags()
drm/radeon: fix hotplug race at startup
rtnetlink: verify IFLA_VF_INFO attributes before passing them to driver
net/tipc: initialize security state for new connection socket
net: pktgen: fix race between pktgen_thread_worker() and kthread_stop()
net: call rcu_read_lock early in process_backlog
net: Clone skb before setting peeked flag
net: Fix skb csum races when peeking
net: Fix skb_set_peeked use-after-free bug
ipv6: lock socket in ip6_datagram_connect()
bonding: correct the MAC address for "follow" fail_over_mac policy
netlink: don't hold mutex in rcu callback when releasing mmapd ring
rds: fix an integer overflow test in rds_info_getsockopt()
udp: fix dst races with multicast early demux
bna: fix interrupts storm caused by erroneous packets
net: gso: use feature flag argument in all protocol gso handlers
Fix firmware loader uevent buffer NULL pointer dereference
qla2xxx: Mark port lost when we receive an RSCN for it.
megaraid_sas: use raw_smp_processor_id()
fs/buffer.c: support buffer cache allocations with gfp modifiers
bufferhead: Add _gfp version for sb_getblk()
ext4: avoid deadlocks in the writeback path by using sb_getblk_gfp
HID: usbhid: add Chicony/Pixart usb optical mouse that needs QUIRK_ALWAYS_POLL
ima: add support for new "euid" policy condition
ima: extend "mask" policy matching support
mfd: arizona: Fix initialisation of the PM runtime
xen-blkfront: don't add indirect pages to list when !feature_persistent
xen-blkback: replace work_pending with work_busy in purge_persistent_gnt()
regmap: regcache-rbtree: Clean new present bits on present bitmap resize
target/iscsi: Fix double free of a TUR followed by a solicited NOPOUT
target: REPORT LUNS should return LUN 0 even for dynamic ACLs
perf: Fix fasync handling on inherited events
KVM: x86: Use adjustment in guest cycles when handling MSR_IA32_TSC_ADJUST
x86/ldt: Make modify_ldt synchronous
x86/ldt: Correct LDT access in single stepping logic
rcu: Provide counterpart to rcu_dereference() for non-RCU situations
rcu: Move lockless_dereference() out of rcupdate.h
x86/ldt: Correct FPU emulation access to LDT
localmodconfig: Use Kbuild files too
dm thin metadata: delete btrees when releasing metadata snapshot
dm btree: add ref counting ops for the leaves of top level btrees
drm/radeon: add new OLAND pci id
libiscsi: Fix host busy blocking during connection teardown
libfc: Fix fc_exch_recv_req() error path
libfc: Fix fc_fcp_cleanup_each_cmd()
EDAC, ppc4xx: Access mci->csrows array elements properly
crypto: caam - fix memory corruption in ahash_final_ctx
drm/vmwgfx: Fix execbuf locking issues
mm/hwpoison: fix page refcount of unknown non LRU page
ipc,sem: fix use after free on IPC_RMID after a task using same semaphore set exits
ipc/sem.c: change memory barrier in sem_lock() to smp_rmb()
ipc/sem.c: update/correct memory barriers
MIPS: Fix seccomp syscall argument for MIPS64
x86/ldt: Further fix FPU emulation
SCSI: Fix NULL pointer dereference in runtime PM
ALSA: usb-audio: Fix runtime PM unbalance
Add factory recertified Crucial M500s to blacklist
arm64: KVM: Fix host crash when injecting a fault into a 32bit guest
batman-adv: fix kernel crash due to missing NULL checks
batman-adv: protect tt_local_entry from concurrent delete events
perf: Fix PERF_EVENT_IOC_PERIOD migration race
net: Fix RCU splat in af_key
ip6_gre: release cached dst on tunnel removal
s390/sclp: fix compile error
xen/gntdev: convert priv->lock to a mutex
xen/gntdevt: Fix race condition in gntdev_release()
signalfd: fix information leak in signalfd_copyinfo
signal: fix information leak in copy_siginfo_to_user
signal: fix information leak in copy_siginfo_from_user32
Linux 3.16.7-ckt17

The following patch from 3.16.7-ckt17 was already applied to the LTS Utopic kernel:

sysfs: Create mountpoints with sysfs_create_mount_point