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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 

Pull sysctl system call removal from Eric Biederman:
 "As far as I can tell we have reached the point where no one enables
  the sysctl system call anymore. It still is enabled in a few
  defconfigs but they are mostly the rarely used one and in asking
  people about that it was more cut & paste enabled than anything else.

  This is single commit that just deletes code. Leaving just enough code
  so that the deprecated sysctl warning continues to be printed. If my
  analysis turns out to be wrong and someone actually cares it will be
  easy to revert this commit and have the system call again.

  There was one new xtensa defconfig in linux-next that enabled the
  system call this cycle and when asked about it the maintainer of the
  code replied that it was not enabled on purpose. As of today's
  linux-next tree that defconfig no longer enables the system call.

  What we saw in the review discussion was that if we go a step farther
  than my patch and mess with uapi headers there are pieces of code that
  won't compile, but nothing minds the system call actually disappearing
  from the kernel"

Link: https://lore.kernel.org/lkml/201910011140.EA0181F13@keescook/

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  sysctl: Remove the sysctl system call
This commit is contained in:
Linus Torvalds 2019-12-01 13:26:18 -08:00
parent b94ae8ad9f 61a47c1ad3
commit ad0b314e00
34 changed files with 0 additions and 1354 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arc/configs/nps_defconfig
View File

@ -7,7 +7,6 @@ CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3=y
CONFIG_SYSCTL_SYSCALL=y
# CONFIG_EPOLL is not set
# CONFIG_SIGNALFD is not set
# CONFIG_TIMERFD is not set

1
arch/arc/configs/tb10x_defconfig
View File

@ -15,7 +15,6 @@ CONFIG_INITRAMFS_ROOT_UID=2100
CONFIG_INITRAMFS_ROOT_GID=501
# CONFIG_RD_GZIP is not set
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y

1
arch/arm/configs/axm55xx_defconfig
View File

@ -20,7 +20,6 @@ CONFIG_NAMESPACES=y
CONFIG_SCHED_AUTOGROUP=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_EMBEDDED=y
# CONFIG_COMPAT_BRK is not set
CONFIG_PROFILING=y

1
arch/arm/configs/keystone_defconfig
View File

@ -11,7 +11,6 @@ CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_SCHED=y
CONFIG_BLK_CGROUP=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_ELF_CORE is not set
# CONFIG_BASE_FULL is not set

1
arch/arm/configs/lpc32xx_defconfig
View File

@ -9,7 +9,6 @@ CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_SLAB=y
# CONFIG_ARCH_MULTI_V7 is not set

1
arch/arm/configs/moxart_defconfig
View File

@ -4,7 +4,6 @@ CONFIG_SYSVIPC=y
CONFIG_NO_HZ=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_SYSCTL_SYSCALL=y
# CONFIG_ELF_CORE is not set
# CONFIG_BASE_FULL is not set
# CONFIG_SIGNALFD is not set

1
arch/arm/configs/qcom_defconfig
View File

@ -5,7 +5,6 @@ CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_CGROUPS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
# CONFIG_SLUB_DEBUG is not set

1
arch/arm/configs/zx_defconfig
View File

@ -11,7 +11,6 @@ CONFIG_RT_GROUP_SCHED=y
CONFIG_NAMESPACES=y
CONFIG_USER_NS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_PERF_EVENTS=y

1
arch/m68k/configs/m5475evb_defconfig
View File

@ -1,6 +1,5 @@
# CONFIG_SWAP is not set
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSCTL_SYSCALL=y
# CONFIG_KALLSYMS is not set
# CONFIG_FUTEX is not set
# CONFIG_EPOLL is not set

1
arch/mips/configs/ci20_defconfig
View File

@ -17,7 +17,6 @@ CONFIG_CGROUP_CPUACCT=y
CONFIG_NAMESPACES=y
CONFIG_USER_NS=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
# CONFIG_VM_EVENT_COUNTERS is not set

1
arch/mips/configs/loongson3_defconfig
View File

@ -20,7 +20,6 @@ CONFIG_SCHED_AUTOGROUP=y
CONFIG_SYSFS_DEPRECATED=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_MACH_LOONGSON64=y
CONFIG_SMP=y

1
arch/mips/configs/malta_qemu_32r6_defconfig
View File

@ -5,7 +5,6 @@ CONFIG_NO_HZ=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_SYSCTL_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_SLAB=y
CONFIG_MIPS_MALTA=y

1
arch/mips/configs/maltaaprp_defconfig
View File

@ -5,7 +5,6 @@ CONFIG_AUDIT=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_SYSCTL_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_SLAB=y
CONFIG_MIPS_MALTA=y

1
arch/mips/configs/maltasmvp_defconfig
View File

@ -5,7 +5,6 @@ CONFIG_NO_HZ=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_SYSCTL_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_SLAB=y
CONFIG_MIPS_MALTA=y

1
arch/mips/configs/maltasmvp_eva_defconfig
View File

@ -5,7 +5,6 @@ CONFIG_NO_HZ=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_SYSCTL_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_SLAB=y
CONFIG_MIPS_MALTA=y

1
arch/mips/configs/maltaup_defconfig
View File

@ -6,7 +6,6 @@ CONFIG_NO_HZ=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_SYSCTL_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_SLAB=y
CONFIG_MIPS_MALTA=y

1
arch/mips/configs/omega2p_defconfig
View File

@ -16,7 +16,6 @@ CONFIG_CGROUP_CPUACCT=y
CONFIG_NAMESPACES=y
CONFIG_USER_NS=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
# CONFIG_VM_EVENT_COUNTERS is not set

1
arch/mips/configs/qi_lb60_defconfig
View File

@ -2,7 +2,6 @@
CONFIG_SYSVIPC=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
# CONFIG_VM_EVENT_COUNTERS is not set

1
arch/mips/configs/vocore2_defconfig
View File

@ -16,7 +16,6 @@ CONFIG_CGROUP_CPUACCT=y
CONFIG_NAMESPACES=y
CONFIG_USER_NS=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
# CONFIG_VM_EVENT_COUNTERS is not set

1
arch/nios2/configs/10m50_defconfig
View File

@ -2,7 +2,6 @@ CONFIG_SYSVIPC=y
CONFIG_NO_HZ_IDLE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSCTL_SYSCALL=y
# CONFIG_ELF_CORE is not set
# CONFIG_EPOLL is not set
# CONFIG_SIGNALFD is not set

1
arch/nios2/configs/3c120_defconfig
View File

@ -2,7 +2,6 @@ CONFIG_SYSVIPC=y
CONFIG_NO_HZ_IDLE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSCTL_SYSCALL=y
# CONFIG_ELF_CORE is not set
# CONFIG_EPOLL is not set
# CONFIG_SIGNALFD is not set

1
arch/parisc/configs/c8000_defconfig
View File

@ -9,7 +9,6 @@ CONFIG_IKCONFIG_PROC=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_SLAB=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y

1
arch/parisc/configs/generic-32bit_defconfig
View File

@ -8,7 +8,6 @@ CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_PERF_EVENTS=y
CONFIG_SLAB=y
CONFIG_MODULES=y

1
arch/powerpc/configs/40x/klondike_defconfig
View File

@ -4,7 +4,6 @@ CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_SLAB=y
CONFIG_MODULES=y

1
arch/sh/configs/rsk7264_defconfig
View File

@ -8,7 +8,6 @@ CONFIG_NAMESPACES=y
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_PERF_COUNTERS=y

1
arch/xtensa/configs/audio_kc705_defconfig
View File

@ -16,7 +16,6 @@ CONFIG_SCHED_AUTOGROUP=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PROFILING=y
CONFIG_OPROFILE=y

1
arch/xtensa/configs/cadence_csp_defconfig
View File

@ -21,7 +21,6 @@ CONFIG_INITRAMFS_SOURCE="$$KERNEL_INITRAMFS_SOURCE"
# CONFIG_RD_LZO is not set
# CONFIG_RD_LZ4 is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_PROFILING=y
CONFIG_MODULES=y

1
arch/xtensa/configs/generic_kc705_defconfig
View File

@ -16,7 +16,6 @@ CONFIG_SCHED_AUTOGROUP=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PROFILING=y
CONFIG_OPROFILE=y

1
arch/xtensa/configs/iss_defconfig
View File

@ -1,7 +1,6 @@
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
# CONFIG_PCI is not set

1
arch/xtensa/configs/nommu_kc705_defconfig
View File

@ -21,7 +21,6 @@ CONFIG_BLK_DEV_INITRD=y
# CONFIG_RD_LZO is not set
# CONFIG_RD_LZ4 is not set
CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PERF_EVENTS=y
CONFIG_MODULES=y

1
arch/xtensa/configs/smp_lx200_defconfig
View File

@ -16,7 +16,6 @@ CONFIG_SCHED_AUTOGROUP=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PROFILING=y
CONFIG_OPROFILE=y

1
arch/xtensa/configs/virt_defconfig
View File

@ -15,7 +15,6 @@ CONFIG_SCHED_AUTOGROUP=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PERF_EVENTS=y
CONFIG_XTENSA_VARIANT_DC233C=y

17
init/Kconfig
View File

@ -1376,23 +1376,6 @@ config SYSFS_SYSCALL
If unsure say Y here.
config SYSCTL_SYSCALL
bool "Sysctl syscall support" if EXPERT
depends on PROC_SYSCTL
default n
select SYSCTL
---help---
sys_sysctl uses binary paths that have been found challenging
to properly maintain and use. The interface in /proc/sys
using paths with ascii names is now the primary path to this
information.
Almost nothing using the binary sysctl interface so if you are
trying to save some space it is probably safe to disable this,
making your kernel marginally smaller.
If unsure say N here.
config FHANDLE
bool "open by fhandle syscalls" if EXPERT
select EXPORTFS

1305
kernel/sysctl_binary.c
View File

File diff suppressed because it is too large Load Diff