Revision 821032

- btrfs: don't accept bare namespace as a valid xattr
- btrfs: fix inode eviction infinite loop after cloning into it
- btrfs: fix inode eviction infinite loop after extent_same ioctl
- btrfs: fix log tree corruption when fs mounted with -o discard
- ip_forward: Drop frames with attached skb->sk
- KVM: x86: Fix MSR_IA32_BNDCFGS in msrs_to_save
- md: fix md io stats accounting broken
- net: add skb_checksum_complete_unset
- net: do not deplete pfmemalloc reserve
- net: fix crash in build_skb()
- net/mlx4_en: Prevent setting invalid RSS hash function
- perf/x86/intel: Fix Core2,Atom,NHM,WSM cycles:pp events
- ppp: call skb_checksum_complete_unset in ppp_receive_frame
- pxa168: fix double deallocation of managed resources
- tcp: avoid looping in tcp_send_fin()
- tcp: fix possible deadlock in tcp_send_fin()
- usb: gadget: printer: enqueue printer's response for setup request
- x86/asm/decoder: Fix and enforce max instruction size in the insn decoder