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authorLinus Torvalds <torvalds@linux-foundation.org>2025-07-29 21:43:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2025-07-29 21:43:08 -0700
commit4b290aae788e06561754b28c6842e4080957d3f7 (patch)
tree9549cb23795ffd436620f72aad15aa2c36692628 /Documentation/admin-guide/sysctl
parenta26321ee4c935a63c29ed6518f27e38826b36e68 (diff)
parentffc137c5c195a7c2a0f3bdefd9bafa639ba5a430 (diff)
Merge tag 'sysctl-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl
Pull sysctl updates from Joel Granados: - Move sysctls out of the kern_table array This is the final move of ctl_tables into their respective subsystems. Only 5 (out of the original 50) will remain in kernel/sysctl.c file; these handle either sysctl or common arch variables. By decentralizing sysctl registrations, subsystem maintainers regain control over their sysctl interfaces, improving maintainability and reducing the likelihood of merge conflicts. - docs: Remove false positives from check-sysctl-docs Stopped falsely identifying sysctls as undocumented or unimplemented in the check-sysctl-docs script. This script can now be used to automatically identify if documentation is missing. * tag 'sysctl-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl: (23 commits) docs: Downgrade arm64 & riscv from titles to comment docs: Replace spaces with tabs in check-sysctl-docs docs: Remove colon from ctltable title in vm.rst docs: Add awk section for ucount sysctl entries docs: Use skiplist when checking sysctl admin-guide docs: nixify check-sysctl-docs sysctl: rename kern_table -> sysctl_subsys_table kernel/sys.c: Move overflow{uid,gid} sysctl into kernel/sys.c uevent: mv uevent_helper into kobject_uevent.c sysctl: Removed unused variable sysctl: Nixify sysctl.sh sysctl: Remove superfluous includes from kernel/sysctl.c sysctl: Remove (very) old file changelog sysctl: Move sysctl_panic_on_stackoverflow to kernel/panic.c sysctl: move cad_pid into kernel/pid.c sysctl: Move tainted ctl_table into kernel/panic.c Input: sysrq: mv sysrq into drivers/tty/sysrq.c fork: mv threads-max into kernel/fork.c parisc/power: Move soft-power into power.c mm: move randomize_va_space into memory.c ...
Diffstat (limited to 'Documentation/admin-guide/sysctl')
-rw-r--r--Documentation/admin-guide/sysctl/kernel.rst32
-rw-r--r--Documentation/admin-guide/sysctl/vm.rst8
2 files changed, 18 insertions, 22 deletions
diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
index 19224eeac1c2..c04e6b8eb2b1 100644
--- a/Documentation/admin-guide/sysctl/kernel.rst
+++ b/Documentation/admin-guide/sysctl/kernel.rst
@@ -1014,30 +1014,26 @@ perf_user_access (arm64 and riscv only)
Controls user space access for reading perf event counters.
-arm64
-=====
-
-The default value is 0 (access disabled).
+* for arm64
+ The default value is 0 (access disabled).
-When set to 1, user space can read performance monitor counter registers
-directly.
+ When set to 1, user space can read performance monitor counter registers
+ directly.
-See Documentation/arch/arm64/perf.rst for more information.
-
-riscv
-=====
+ See Documentation/arch/arm64/perf.rst for more information.
-When set to 0, user space access is disabled.
+* for riscv
+ When set to 0, user space access is disabled.
-The default value is 1, user space can read performance monitor counter
-registers through perf, any direct access without perf intervention will trigger
-an illegal instruction.
+ The default value is 1, user space can read performance monitor counter
+ registers through perf, any direct access without perf intervention will trigger
+ an illegal instruction.
-When set to 2, which enables legacy mode (user space has direct access to cycle
-and insret CSRs only). Note that this legacy value is deprecated and will be
-removed once all user space applications are fixed.
+ When set to 2, which enables legacy mode (user space has direct access to cycle
+ and insret CSRs only). Note that this legacy value is deprecated and will be
+ removed once all user space applications are fixed.
-Note that the time CSR is always directly accessible to all modes.
+ Note that the time CSR is always directly accessible to all modes.
pid_max
=======
diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst
index 9bef46151d53..4d71211fdad8 100644
--- a/Documentation/admin-guide/sysctl/vm.rst
+++ b/Documentation/admin-guide/sysctl/vm.rst
@@ -465,8 +465,8 @@ The minimum value is 1 (1/1 -> 100%). The value less than 1 completely
disables protection of the pages.
-max_map_count:
-==============
+max_map_count
+=============
This file contains the maximum number of memory map areas a process
may have. Memory map areas are used as a side-effect of calling
@@ -495,8 +495,8 @@ memory allocations.
The default value depends on CONFIG_MEM_ALLOC_PROFILING_ENABLED_BY_DEFAULT.
-memory_failure_early_kill:
-==========================
+memory_failure_early_kill
+=========================
Control how to kill processes when uncorrected memory error (typically
a 2bit error in a memory module) is detected in the background by hardware