Merge 4.4.144 into kernel.lnx.4.4.r27-rel

Changes in 4.4.144: (108 commits)
        KVM/Eventfd: Avoid crash when assign and deassign specific eventfd in parallel.
        x86/MCE: Remove min interval polling limitation
        fat: fix memory allocation failure handling of match_strdup()
        ALSA: rawmidi: Change resized buffers atomically
        ARC: Fix CONFIG_SWAP
        ARC: mm: allow mprotect to make stack mappings executable
        mm: memcg: fix use after free in mem_cgroup_iter()
        ipv4: Return EINVAL when ping_group_range sysctl doesn't map to user ns
        ipv6: fix useless rol32 call on hash
        lib/rhashtable: consider param->min_size when setting initial table size
        net/ipv4: Set oif in fib_compute_spec_dst
        net: phy: fix flag masking in __set_phy_supported
        ptp: fix missing break in switch
        tg3: Add higher cpu clock for 5762.
        net: Don't copy pfmemalloc flag in __copy_skb_header()
        skbuff: Unconditionally copy pfmemalloc in __skb_clone()
        xhci: Fix perceived dead host due to runtime suspend race with event handler
        x86/paravirt: Make native_save_fl() extern inline
        x86/cpufeatures: Add CPUID_7_EDX CPUID leaf
        x86/cpufeatures: Add Intel feature bits for Speculation Control
        x86/cpufeatures: Add AMD feature bits for Speculation Control
        x86/msr: Add definitions for new speculation control MSRs
        x86/pti: Do not enable PTI on CPUs which are not vulnerable to Meltdown
        x86/cpufeature: Blacklist SPEC_CTRL/PRED_CMD on early Spectre v2 microcodes
        x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support
        x86/cpufeatures: Clean up Spectre v2 related CPUID flags
        x86/cpuid: Fix up "virtual" IBRS/IBPB/STIBP feature bits on Intel
        x86/pti: Mark constant arrays as __initconst
        x86/asm/entry/32: Simplify pushes of zeroed pt_regs->REGs
        x86/entry/64/compat: Clear registers for compat syscalls, to reduce speculation attack surface
        x86/speculation: Update Speculation Control microcode blacklist
        x86/speculation: Correct Speculation Control microcode blacklist again
        x86/speculation: Clean up various Spectre related details
        x86/speculation: Fix up array_index_nospec_mask() asm constraint
        x86/speculation: Add <asm/msr-index.h> dependency
        x86/xen: Zero MSR_IA32_SPEC_CTRL before suspend
        x86/mm: Factor out LDT init from context init
        x86/mm: Give each mm TLB flush generation a unique ID
        x86/speculation: Use Indirect Branch Prediction Barrier in context switch
        x86/spectre_v2: Don't check microcode versions when running under hypervisors
        x86/speculation: Use IBRS if available before calling into firmware
        x86/speculation: Move firmware_restrict_branch_speculation_*() from C to CPP
        x86/speculation: Remove Skylake C2 from Speculation Control microcode blacklist
        selftest/seccomp: Fix the flag name SECCOMP_FILTER_FLAG_TSYNC
        selftest/seccomp: Fix the seccomp(2) signature
        xen: set cpu capabilities from xen_start_kernel()
        x86/amd: don't set X86_BUG_SYSRET_SS_ATTRS when running under Xen
        x86/nospec: Simplify alternative_msr_write()
        x86/bugs: Concentrate bug detection into a separate function
        x86/bugs: Concentrate bug reporting into a separate function
        x86/bugs: Read SPEC_CTRL MSR during boot and re-use reserved bits
        x86/bugs, KVM: Support the combination of guest and host IBRS
        x86/cpu: Rename Merrifield2 to Moorefield
        x86/cpu/intel: Add Knights Mill to Intel family
        x86/bugs: Expose /sys/../spec_store_bypass
        x86/cpufeatures: Add X86_FEATURE_RDS
        x86/bugs: Provide boot parameters for the spec_store_bypass_disable mitigation
        x86/bugs/intel: Set proper CPU features and setup RDS
        x86/bugs: Whitelist allowed SPEC_CTRL MSR values
        x86/bugs/AMD: Add support to disable RDS on Fam[15, 16, 17]h if requested
        x86/speculation: Create spec-ctrl.h to avoid include hell
        prctl: Add speculation control prctls
        x86/process: Optimize TIF checks in __switch_to_xtra()
        x86/process: Correct and optimize TIF_BLOCKSTEP switch
        x86/process: Optimize TIF_NOTSC switch
        x86/process: Allow runtime control of Speculative Store Bypass
        x86/speculation: Add prctl for Speculative Store Bypass mitigation
        nospec: Allow getting/setting on non-current task
        proc: Provide details on speculation flaw mitigations
        seccomp: Enable speculation flaw mitigations
        prctl: Add force disable speculation
        seccomp: Use PR_SPEC_FORCE_DISABLE
        seccomp: Add filter flag to opt-out of SSB mitigation
        seccomp: Move speculation migitation control to arch code
        x86/speculation: Make "seccomp" the default mode for Speculative Store Bypass
        x86/bugs: Rename _RDS to _SSBD
        proc: Use underscores for SSBD in 'status'
        Documentation/spec_ctrl: Do some minor cleanups
        x86/bugs: Fix __ssb_select_mitigation() return type
        x86/bugs: Make cpu_show_common() static
        x86/bugs: Fix the parameters alignment and missing void
        x86/cpu: Make alternative_msr_write work for 32-bit code
        x86/speculation: Use synthetic bits for IBRS/IBPB/STIBP
        x86/cpufeatures: Disentangle MSR_SPEC_CTRL enumeration from IBRS
        x86/cpufeatures: Disentangle SSBD enumeration
        x86/cpu/AMD: Fix erratum 1076 (CPB bit)
        x86/cpufeatures: Add FEATURE_ZEN
        x86/speculation: Handle HT correctly on AMD
        x86/bugs, KVM: Extend speculation control for VIRT_SPEC_CTRL
        x86/speculation: Add virtualized speculative store bypass disable support
        x86/speculation: Rework speculative_store_bypass_update()
        x86/bugs: Unify x86_spec_ctrl_{set_guest, restore_host}
        x86/bugs: Expose x86_spec_ctrl_base directly
        x86/bugs: Remove x86_spec_ctrl_set()
        x86/bugs: Rework spec_ctrl base and mask logic
        x86/speculation, KVM: Implement support for VIRT_SPEC_CTRL/LS_CFG
        x86/bugs: Rename SSBD_NO to SSB_NO
        x86/xen: Add call of speculative_store_bypass_ht_init() to PV paths
        x86/cpu: Re-apply forced caps every time CPU caps are re-read
        block: do not use interruptible wait anywhere
        clk: tegra: Fix PLL_U post divider and initial rate on Tegra30
        ubi: Introduce vol_ignored()
        ubi: Rework Fastmap attach base code
        ubi: Be more paranoid while seaching for the most recent Fastmap
        ubi: Fix races around ubi_refill_pools()
        ubi: Fix Fastmap's update_vol()
        ubi: fastmap: Erase outdated anchor PEBs during attach
        Linux 4.4.144

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>

Conflicts:
	drivers/mtd/ubi/wl.c
	include/uapi/linux/prctl.h
	kernel/sys.c
	sound/core/rawmidi.c