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    Subject[PATCH 25/34] Make anon_inodes unconditional [ver #12]
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    Date
    Make the anon_inodes facility unconditional so that it can be used by core
    VFS code.

    Signed-off-by: David Howells <dhowells@redhat.com>
    ---

    arch/arm/kvm/Kconfig | 1 -
    arch/arm64/kvm/Kconfig | 1 -
    arch/mips/kvm/Kconfig | 1 -
    arch/powerpc/kvm/Kconfig | 1 -
    arch/s390/kvm/Kconfig | 1 -
    arch/x86/Kconfig | 1 -
    arch/x86/kvm/Kconfig | 1 -
    drivers/base/Kconfig | 1 -
    drivers/char/tpm/Kconfig | 1 -
    drivers/dma-buf/Kconfig | 1 -
    drivers/gpio/Kconfig | 1 -
    drivers/iio/Kconfig | 1 -
    drivers/infiniband/Kconfig | 1 -
    drivers/vfio/Kconfig | 1 -
    fs/Makefile | 2 +-
    fs/notify/fanotify/Kconfig | 1 -
    fs/notify/inotify/Kconfig | 1 -
    init/Kconfig | 10 ----------
    18 files changed, 1 insertion(+), 27 deletions(-)

    diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
    index e2bd35b6780c..c09fcc092a54 100644
    --- a/arch/arm/kvm/Kconfig
    +++ b/arch/arm/kvm/Kconfig
    @@ -22,7 +22,6 @@ config KVM
    bool "Kernel-based Virtual Machine (KVM) support"
    depends on MMU && OF
    select PREEMPT_NOTIFIERS
    - select ANON_INODES
    select ARM_GIC
    select ARM_GIC_V3
    select ARM_GIC_V3_ITS
    diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
    index 47b23bf617c7..86fe9b3e3ff8 100644
    --- a/arch/arm64/kvm/Kconfig
    +++ b/arch/arm64/kvm/Kconfig
    @@ -23,7 +23,6 @@ config KVM
    depends on OF
    select MMU_NOTIFIER
    select PREEMPT_NOTIFIERS
    - select ANON_INODES
    select HAVE_KVM_CPU_RELAX_INTERCEPT
    select HAVE_KVM_ARCH_TLB_FLUSH_ALL
    select KVM_MMIO
    diff --git a/arch/mips/kvm/Kconfig b/arch/mips/kvm/Kconfig
    index 76b93a9c8c9b..4d06a29bc13b 100644
    --- a/arch/mips/kvm/Kconfig
    +++ b/arch/mips/kvm/Kconfig
    @@ -20,7 +20,6 @@ config KVM
    depends on HAVE_KVM
    select EXPORT_UASM
    select PREEMPT_NOTIFIERS
    - select ANON_INODES
    select KVM_GENERIC_DIRTYLOG_READ_PROTECT
    select HAVE_KVM_VCPU_ASYNC_IOCTL
    select KVM_MMIO
    diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
    index 68a0e9d5b440..e058d02ee819 100644
    --- a/arch/powerpc/kvm/Kconfig
    +++ b/arch/powerpc/kvm/Kconfig
    @@ -20,7 +20,6 @@ if VIRTUALIZATION
    config KVM
    bool
    select PREEMPT_NOTIFIERS
    - select ANON_INODES
    select HAVE_KVM_EVENTFD
    select HAVE_KVM_VCPU_ASYNC_IOCTL
    select SRCU
    diff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig
    index a3dbd459cce9..600e4fd11a67 100644
    --- a/arch/s390/kvm/Kconfig
    +++ b/arch/s390/kvm/Kconfig
    @@ -21,7 +21,6 @@ config KVM
    prompt "Kernel-based Virtual Machine (KVM) support"
    depends on HAVE_KVM
    select PREEMPT_NOTIFIERS
    - select ANON_INODES
    select HAVE_KVM_CPU_RELAX_INTERCEPT
    select HAVE_KVM_VCPU_ASYNC_IOCTL
    select HAVE_KVM_EVENTFD
    diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
    index 1a0be022f91d..d02baf335d98 100644
    --- a/arch/x86/Kconfig
    +++ b/arch/x86/Kconfig
    @@ -46,7 +46,6 @@ config X86
    #
    select ACPI_LEGACY_TABLES_LOOKUP if ACPI
    select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
    - select ANON_INODES
    select ARCH_CLOCKSOURCE_DATA
    select ARCH_DISCARD_MEMBLOCK
    select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
    diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
    index 1bbec387d289..f3f2e547484b 100644
    --- a/arch/x86/kvm/Kconfig
    +++ b/arch/x86/kvm/Kconfig
    @@ -27,7 +27,6 @@ config KVM
    depends on X86_LOCAL_APIC
    select PREEMPT_NOTIFIERS
    select MMU_NOTIFIER
    - select ANON_INODES
    select HAVE_KVM_IRQCHIP
    select HAVE_KVM_IRQFD
    select IRQ_BYPASS_MANAGER
    diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
    index 3e63a900b330..ae213ed2a7c8 100644
    --- a/drivers/base/Kconfig
    +++ b/drivers/base/Kconfig
    @@ -174,7 +174,6 @@ source "drivers/base/regmap/Kconfig"
    config DMA_SHARED_BUFFER
    bool
    default n
    - select ANON_INODES
    select IRQ_WORK
    help
    This option enables the framework for buffer-sharing between
    diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
    index 18c81cbe4704..4819874b5523 100644
    --- a/drivers/char/tpm/Kconfig
    +++ b/drivers/char/tpm/Kconfig
    @@ -157,7 +157,6 @@ config TCG_CRB
    config TCG_VTPM_PROXY
    tristate "VTPM Proxy Interface"
    depends on TCG_TPM
    - select ANON_INODES
    ---help---
    This driver proxies for an emulated TPM (vTPM) running in userspace.
    A device /dev/vtpmx is provided that creates a device pair
    diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig
    index ed3b785bae37..b0194c8c251c 100644
    --- a/drivers/dma-buf/Kconfig
    +++ b/drivers/dma-buf/Kconfig
    @@ -3,7 +3,6 @@ menu "DMABUF options"
    config SYNC_FILE
    bool "Explicit Synchronization Framework"
    default n
    - select ANON_INODES
    select DMA_SHARED_BUFFER
    ---help---
    The Sync File Framework adds explicit syncronization via
    diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
    index 4f52c3a8ec99..392fd95b3734 100644
    --- a/drivers/gpio/Kconfig
    +++ b/drivers/gpio/Kconfig
    @@ -12,7 +12,6 @@ config ARCH_HAVE_CUSTOM_GPIO_H

    menuconfig GPIOLIB
    bool "GPIO Support"
    - select ANON_INODES
    help
    This enables GPIO support through the generic GPIO library.
    You only need to enable this, if you also want to enable
    diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
    index d08aeb41cd07..1dec0fecb6ef 100644
    --- a/drivers/iio/Kconfig
    +++ b/drivers/iio/Kconfig
    @@ -4,7 +4,6 @@

    menuconfig IIO
    tristate "Industrial I/O support"
    - select ANON_INODES
    help
    The industrial I/O subsystem provides a unified framework for
    drivers for many different types of embedded sensors using a
    diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
    index abb6660c099c..176b943dfec9 100644
    --- a/drivers/infiniband/Kconfig
    +++ b/drivers/infiniband/Kconfig
    @@ -25,7 +25,6 @@ config INFINIBAND_USER_MAD

    config INFINIBAND_USER_ACCESS
    tristate "InfiniBand userspace access (verbs and CM)"
    - select ANON_INODES
    ---help---
    Userspace InfiniBand access support. This enables the
    kernel side of userspace verbs and the userspace
    diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig
    index c84333eb5eb5..9aa91e736023 100644
    --- a/drivers/vfio/Kconfig
    +++ b/drivers/vfio/Kconfig
    @@ -22,7 +22,6 @@ menuconfig VFIO
    tristate "VFIO Non-Privileged userspace driver framework"
    depends on IOMMU_API
    select VFIO_IOMMU_TYPE1 if (X86 || S390 || ARM_SMMU || ARM_SMMU_V3)
    - select ANON_INODES
    help
    VFIO provides a framework for secure userspace device drivers.
    See Documentation/vfio.txt for more details.
    diff --git a/fs/Makefile b/fs/Makefile
    index 9a0b8003f069..ae681523b4b1 100644
    --- a/fs/Makefile
    +++ b/fs/Makefile
    @@ -25,7 +25,7 @@ obj-$(CONFIG_PROC_FS) += proc_namespace.o

    obj-y += notify/
    obj-$(CONFIG_EPOLL) += eventpoll.o
    -obj-$(CONFIG_ANON_INODES) += anon_inodes.o
    +obj-y += anon_inodes.o
    obj-$(CONFIG_SIGNALFD) += signalfd.o
    obj-$(CONFIG_TIMERFD) += timerfd.o
    obj-$(CONFIG_EVENTFD) += eventfd.o
    diff --git a/fs/notify/fanotify/Kconfig b/fs/notify/fanotify/Kconfig
    index 41355ce74ac0..f5b0b3af32dd 100644
    --- a/fs/notify/fanotify/Kconfig
    +++ b/fs/notify/fanotify/Kconfig
    @@ -1,7 +1,6 @@
    config FANOTIFY
    bool "Filesystem wide access notification"
    select FSNOTIFY
    - select ANON_INODES
    default n
    ---help---
    Say Y here to enable fanotify support. fanotify is a file access
    diff --git a/fs/notify/inotify/Kconfig b/fs/notify/inotify/Kconfig
    index b981fc0c8379..0161c74e76e2 100644
    --- a/fs/notify/inotify/Kconfig
    +++ b/fs/notify/inotify/Kconfig
    @@ -1,6 +1,5 @@
    config INOTIFY_USER
    bool "Inotify support for userspace"
    - select ANON_INODES
    select FSNOTIFY
    default y
    ---help---
    diff --git a/init/Kconfig b/init/Kconfig
    index 1e234e2f1cba..275534995f78 100644
    --- a/init/Kconfig
    +++ b/init/Kconfig
    @@ -1114,9 +1114,6 @@ config LD_DEAD_CODE_DATA_ELIMINATION
    config SYSCTL
    bool

    -config ANON_INODES
    - bool
    -
    config HAVE_UID16
    bool

    @@ -1321,14 +1318,12 @@ config HAVE_FUTEX_CMPXCHG
    config EPOLL
    bool "Enable eventpoll support" if EXPERT
    default y
    - select ANON_INODES
    help
    Disabling this option will cause the kernel to be built without
    support for epoll family of system calls.

    config SIGNALFD
    bool "Enable signalfd() system call" if EXPERT
    - select ANON_INODES
    default y
    help
    Enable the signalfd() system call that allows to receive signals
    @@ -1338,7 +1333,6 @@ config SIGNALFD

    config TIMERFD
    bool "Enable timerfd() system call" if EXPERT
    - select ANON_INODES
    default y
    help
    Enable the timerfd() system call that allows to receive timer
    @@ -1348,7 +1342,6 @@ config TIMERFD

    config EVENTFD
    bool "Enable eventfd() system call" if EXPERT
    - select ANON_INODES
    default y
    help
    Enable the eventfd() system call that allows to receive both
    @@ -1450,7 +1443,6 @@ config KALLSYMS_BASE_RELATIVE
    # syscall, maps, verifier
    config BPF_SYSCALL
    bool "Enable bpf() system call"
    - select ANON_INODES
    select BPF
    select IRQ_WORK
    default n
    @@ -1467,7 +1459,6 @@ config BPF_JIT_ALWAYS_ON

    config USERFAULTFD
    bool "Enable userfaultfd() system call"
    - select ANON_INODES
    depends on MMU
    help
    Enable the userfaultfd() system call that allows to intercept and
    @@ -1534,7 +1525,6 @@ config PERF_EVENTS
    bool "Kernel performance events and counters"
    default y if PROFILING
    depends on HAVE_PERF_EVENTS
    - select ANON_INODES
    select IRQ_WORK
    select SRCU
    help
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