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Make anon_inodes unconditional 

Make the anon_inodes facility unconditional so that it can be used by core
VFS code and pidfd code.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
[christian@brauner.io: adapt commit message to mention pidfds]
Signed-off-by: Christian Brauner <christian@brauner.io>
hifive-unleashed-5.2
David Howells 2018-11-05 17:40:31 +00:00 committed by Christian Brauner
parent 15ade5d2e7
commit 5dd50aaeb1
No known key found for this signature in database
GPG Key ID: 8EB056D53EECB12D
18 changed files with 1 additions and 27 deletions
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1
arch/arm/kvm/Kconfig
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@ -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

1
arch/arm64/kvm/Kconfig
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@ -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

1
arch/mips/kvm/Kconfig
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@ -21,7 +21,6 @@ config KVM
depends on MIPS_FP_SUPPORT
select EXPORT_UASM
select PREEMPT_NOTIFIERS
select ANON_INODES
select KVM_GENERIC_DIRTYLOG_READ_PROTECT
select HAVE_KVM_VCPU_ASYNC_IOCTL
select KVM_MMIO

1
arch/powerpc/kvm/Kconfig
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@ -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

1
arch/s390/kvm/Kconfig
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@ -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

1
arch/x86/Kconfig
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@ -44,7 +44,6 @@ config X86
#
select ACPI_LEGACY_TABLES_LOOKUP if ACPI
select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
select ANON_INODES
select ARCH_32BIT_OFF_T if X86_32
select ARCH_CLOCKSOURCE_DATA
select ARCH_CLOCKSOURCE_INIT

1
arch/x86/kvm/Kconfig
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@ -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

1
drivers/base/Kconfig
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@ -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

1
drivers/char/tpm/Kconfig
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@ -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

1
drivers/dma-buf/Kconfig
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@ -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

1
drivers/gpio/Kconfig
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@ -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

1
drivers/iio/Kconfig
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@ -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

1
drivers/infiniband/Kconfig
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@ -25,7 +25,6 @@ config INFINIBAND_USER_MAD
config INFINIBAND_USER_ACCESS
tristate "InfiniBand userspace access (verbs and CM)"
select ANON_INODES
depends on MMU
---help---
Userspace InfiniBand access support. This enables the

1
drivers/vfio/Kconfig
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@ -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 || ARM64)
select ANON_INODES
help
VFIO provides a framework for secure userspace device drivers.
See Documentation/vfio.txt for more details.

2
fs/Makefile
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@ -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

1
fs/notify/fanotify/Kconfig
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@ -1,7 +1,6 @@
config FANOTIFY
bool "Filesystem wide access notification"
select FSNOTIFY
select ANON_INODES
select EXPORTFS
default n
---help---

1
fs/notify/inotify/Kconfig
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@ -1,6 +1,5 @@
config INOTIFY_USER
bool "Inotify support for userspace"
select ANON_INODES
select FSNOTIFY
default y
---help---

10
init/Kconfig
View File

@ -1171,9 +1171,6 @@ config LD_DEAD_CODE_DATA_ELIMINATION
config SYSCTL
bool
config ANON_INODES
bool
config HAVE_UID16
bool
@ -1378,14 +1375,12 @@ 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
@ -1395,7 +1390,6 @@ 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
@ -1405,7 +1399,6 @@ 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
@ -1516,7 +1509,6 @@ 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
@ -1533,7 +1525,6 @@ 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
@ -1600,7 +1591,6 @@ 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