From 5dd50aaeb1853ee0953b60fa6d1143d95429ae7b Mon Sep 17 00:00:00 2001 From: David Howells <dhowells@redhat.com> Date: Mon, 5 Nov 2018 17:40:31 +0000 Subject: [PATCH] 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> --- 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 3f5320f46de2d..f591026347a50 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 a3f85624313ea..a67121d419a2f 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 4528bc9c3cb16..eac25aef21e03 100644 --- a/arch/mips/kvm/Kconfig +++ b/arch/mips/kvm/Kconfig @@ -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 diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig index bfdde04e49051..f53997a8ca624 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 767453faacfcd..1816ee48eadd6 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 5ad92419be19c..7a70fb58b2d0f 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -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 diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index 72fa955f4a15e..fc042419e670b 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 059700ea35217..03f067da12ee0 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 536e55d3919fd..f3e4bc490cf05 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 2e5a0faa2cb10..3fc9c2efc5830 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 3f50526a771fe..0f91600c27aeb 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 d08aeb41cd078..1dec0fecb6efa 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 a1fb840de45d7..d318bab25860f 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 depends on MMU ---help--- Userspace InfiniBand access support. This enables the diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig index 9de5ed38da830..3798d77d131c4 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 || ARM64) - 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 427fec226faeb..35945f8139e61 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 735bfb2e9190e..521dc91d2cb55 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 select EXPORTFS default n ---help--- diff --git a/fs/notify/inotify/Kconfig b/fs/notify/inotify/Kconfig index b981fc0c8379d..0161c74e76e26 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 4592bf7997c00..be8f97e37a767 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -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 -- GitLab