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    Subject[PATCH 00/24] Use asm-generic for mmu_context no-op functions
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    It would be nice to be able to modify these or add a hook without
    updating all architectures, most of which just use noops.

    There was some discussion around the lazy tlb switching vs membarrier
    barriers that may have needed changes here to fix (addition of an
    exit_lazy_tlb() function). I don't know whether that's what we will
    end up doing, but these are the prep patches I did for it which are
    still a good cleanup so I would like to mege them.

    All arch patches depend on patch 1. If everybody is fine with it
    then Arnd could merge that one in this merge window then we do the
    rest of them in the next window?

    Thanks,
    Nick

    Nicholas Piggin (24):
    asm-generic: add generic versions of mmu context functions
    alpha: use asm-generic/mmu_context.h for no-op implementations
    arc: use asm-generic/mmu_context.h for no-op implementations
    arm: use asm-generic/mmu_context.h for no-op implementations
    arm64: use asm-generic/mmu_context.h for no-op implementations
    csky: use asm-generic/mmu_context.h for no-op implementations
    hexagon: use asm-generic/mmu_context.h for no-op implementations
    ia64: use asm-generic/mmu_context.h for no-op implementations
    m68k: use asm-generic/mmu_context.h for no-op implementations
    microblaze: use asm-generic/mmu_context.h for no-op implementations
    mips: use asm-generic/mmu_context.h for no-op implementations
    nds32: use asm-generic/mmu_context.h for no-op implementations
    nios2: use asm-generic/mmu_context.h for no-op implementations
    openrisc: use asm-generic/mmu_context.h for no-op implementations
    parisc: use asm-generic/mmu_context.h for no-op implementations
    powerpc: use asm-generic/mmu_context.h for no-op implementations
    riscv: use asm-generic/mmu_context.h for no-op implementations
    s390: use asm-generic/mmu_context.h for no-op implementations
    sh: use asm-generic/mmu_context.h for no-op implementations
    sparc: use asm-generic/mmu_context.h for no-op implementations
    um: use asm-generic/mmu_context.h for no-op implementations
    unicore32: use asm-generic/mmu_context.h for no-op implementations
    x86: use asm-generic/mmu_context.h for no-op implementations
    xtensa: use asm-generic/mmu_context.h for no-op implementations

    arch/alpha/include/asm/mmu_context.h | 12 ++---
    arch/arc/include/asm/mmu_context.h | 16 +++---
    arch/arm/include/asm/mmu_context.h | 26 ++-------
    arch/arm64/include/asm/mmu_context.h | 7 ++-
    arch/csky/include/asm/mmu_context.h | 8 ++-
    arch/hexagon/include/asm/mmu_context.h | 33 ++----------
    arch/ia64/include/asm/mmu_context.h | 17 ++----
    arch/m68k/include/asm/mmu_context.h | 47 +++-------------
    arch/microblaze/include/asm/mmu_context.h | 2 +-
    arch/microblaze/include/asm/mmu_context_mm.h | 8 +--
    arch/microblaze/include/asm/processor.h | 3 --
    arch/mips/include/asm/mmu_context.h | 11 ++--
    arch/nds32/include/asm/mmu_context.h | 10 +---
    arch/nios2/include/asm/mmu_context.h | 21 ++------
    arch/nios2/mm/mmu_context.c | 1 +
    arch/openrisc/include/asm/mmu_context.h | 8 ++-
    arch/openrisc/mm/tlb.c | 2 +
    arch/parisc/include/asm/mmu_context.h | 12 ++---
    arch/powerpc/include/asm/mmu_context.h | 22 +++-----
    arch/riscv/include/asm/mmu_context.h | 22 +-------
    arch/s390/include/asm/mmu_context.h | 9 ++--
    arch/sh/include/asm/mmu_context.h | 7 ++-
    arch/sh/include/asm/mmu_context_32.h | 9 ----
    arch/sparc/include/asm/mmu_context_32.h | 10 ++--
    arch/sparc/include/asm/mmu_context_64.h | 10 ++--
    arch/um/include/asm/mmu_context.h | 12 ++---
    arch/unicore32/include/asm/mmu_context.h | 24 ++-------
    arch/x86/include/asm/mmu_context.h | 6 +++
    arch/xtensa/include/asm/mmu_context.h | 11 ++--
    arch/xtensa/include/asm/nommu_context.h | 26 +--------
    include/asm-generic/mmu_context.h | 57 +++++++++++++++-----
    include/asm-generic/nommu_context.h | 19 +++++++
    32 files changed, 170 insertions(+), 318 deletions(-)
    create mode 100644 include/asm-generic/nommu_context.h

    --
    2.23.0

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