Merge commit 'v3.7-rc3' into linux-next

Merge commit 'v3.7-rc3' into linux-next

* commit 'v3.7-rc3': (733 commits)
  Linux 3.7-rc3
  Lock splice_read and splice_write functions
  percpu-rw-semaphores: use rcu_read_lock_sched
  percpu-rw-semaphores: use light/heavy barriers
  Revert "ARM i.MX25: Fix PWM per clock lookups"
  ARM: versatile: fix versatile_defconfig
  ARM: mvebu: update defconfig with 3.7 changes
  ARM: at91: fix at91x40 build
  VFS: don't do protected {sym,hard}links by default
  tilegx: fix some issues in the SW TSO support
  qmi_wwan/cdc_ether: move Novatel 551 and E362 to qmi_wwan
  net: usb: Fix memory leak on Tx data path
  net/mlx4_core: Unmap UAR also in the case of error flow
  net/mlx4_en: Don't use vlan tag value as an indication for vlan presence
  net/mlx4_en: Fix double-release-range in tx-rings
  bas_gigaset: fix pre_reset handling
  Revert "ARM: dma-mapping: support debug_dma_mapping_error"
  ktest: Fix ktest confusion with CONFIG_MODULES_USE_ELF_RELA
  ACPI: missing break
  Input: wacom - add touch sensor support for Cintiq 24HD touch
  ...