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UPSTREAM: Make anon_inodes unconditional

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

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

(cherry picked from commit dadd2299ab61fc2b55b95b7b3a8f674cdd3b69c9)

Bug: 135608568
Test: test program using syscall(__NR_sys_pidfd_open,..) and poll()
Change-Id: I2f97bda4f360d8d05bbb603de839717b3d8067ae
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
This commit is contained in:
David Howells 2018-11-05 17:40:31 +00:00 • committed by Suren Baghdasaryan
parent 68defbc4c8
commit 1999644115
18 changed files with 1 additions and 27 deletions
Download patch file Download diff file Expand all files Collapse all files

1
arch/arm/kvm/Kconfig
View file

@ -20,7 +20,6 @@ config KVM
bool "Kernel-based Virtual Machine (KVM) support"
depends on MMU && OF
select PREEMPT_NOTIFIERS
select ANON_INODES
select ARM_GIC
select HAVE_KVM_CPU_RELAX_INTERCEPT
select HAVE_KVM_ARCH_TLB_FLUSH_ALL

1
arch/arm64/kvm/Kconfig
View file

@ -24,7 +24,6 @@ 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
View file

@ -19,7 +19,6 @@ config KVM
depends on HAVE_KVM
select EXPORT_UASM
select PREEMPT_NOTIFIERS
select ANON_INODES
select KVM_MMIO
select SRCU
---help---

1
arch/powerpc/kvm/Kconfig
View file

@ -19,7 +19,6 @@ if VIRTUALIZATION
config KVM
bool
select PREEMPT_NOTIFIERS
select ANON_INODES
select HAVE_KVM_EVENTFD
select SRCU
select KVM_VFIO

1
arch/s390/kvm/Kconfig
View file

@ -20,7 +20,6 @@ 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_EVENTFD
select KVM_ASYNC_PF

1
arch/x86/Kconfig
View file

@ -19,7 +19,6 @@ config X86
def_bool y
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

1
arch/x86/kvm/Kconfig
View file

@ -26,7 +26,6 @@ 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
View file

@ -246,7 +246,6 @@ source "drivers/base/regmap/Kconfig"
config DMA_SHARED_BUFFER
bool
default n
select ANON_INODES
help
This option enables the framework for buffer-sharing between
multiple drivers. A buffer is associated with a file using driver

1
drivers/char/tpm/Kconfig
View file

@ -144,7 +144,6 @@ 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
View file

@ -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
View file

@ -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
View file

@ -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
View file

@ -24,7 +24,6 @@ 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

1
drivers/vfio/Kconfig
View file

@ -24,7 +24,6 @@ menuconfig VFIO
select VFIO_IOMMU_TYPE1 if (X86 || S390 || ARM_SMMU || ARM_SMMU_V3)
select VFIO_IOMMU_SPAPR_TCE if (PPC_POWERNV || PPC_PSERIES)
select VFIO_SPAPR_EEH if (PPC_POWERNV || PPC_PSERIES)
select ANON_INODES
help
VFIO provides a framework for secure userspace device drivers.
See Documentation/vfio.txt for more details.

2
fs/Makefile
View file

@ -23,7 +23,7 @@ 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
View file

@ -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

1
fs/notify/inotify/Kconfig
View file

@ -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

@ -1523,9 +1523,6 @@ endchoice
config SYSCTL
bool
config ANON_INODES
bool
config HAVE_UID16
bool
@ -1743,14 +1740,12 @@ 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
@ -1760,7 +1755,6 @@ 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
@ -1770,7 +1764,6 @@ 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
@ -1781,7 +1774,6 @@ config EVENTFD
# syscall, maps, verifier
config BPF_SYSCALL
bool "Enable bpf() system call"
select ANON_INODES
select BPF
default n
help
@ -1826,7 +1818,6 @@ config ADVISE_SYSCALLS
config USERFAULTFD
bool "Enable userfaultfd() system call"
select ANON_INODES
depends on MMU
help
Enable the userfaultfd() system call that allows to intercept and
@ -1878,7 +1869,6 @@ 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