linux-kernel - [PATCH 0/8] sysctl: Move sysctls from kern_table into their respective subsystems

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250218-jag-mv_ctltables-v1-0-cd3698ab8d29@kernel.org>
Date: Tue, 18 Feb 2025 10:56:16 +0100
From: Joel Granados <joel.granados@...nel.org>
To: Kees Cook <kees@...nel.org>, Steven Rostedt <rostedt@...dmis.org>, 
 Masami Hiramatsu <mhiramat@...nel.org>, Mark Rutland <mark.rutland@....com>, 
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, 
 Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
 Arnaldo Carvalho de Melo <acme@...nel.org>, 
 Namhyung Kim <namhyung@...nel.org>, 
 Alexander Shishkin <alexander.shishkin@...ux.intel.com>, 
 Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>, 
 Adrian Hunter <adrian.hunter@...el.com>, 
 "Liang, Kan" <kan.liang@...ux.intel.com>, 
 "David S. Miller" <davem@...emloft.net>, 
 Andreas Larsson <andreas@...sler.com>, Heiko Carstens <hca@...ux.ibm.com>, 
 Vasily Gorbik <gor@...ux.ibm.com>, 
 Alexander Gordeev <agordeev@...ux.ibm.com>, 
 Christian Borntraeger <borntraeger@...ux.ibm.com>, 
 Sven Schnelle <svens@...ux.ibm.com>, 
 Gerald Schaefer <gerald.schaefer@...ux.ibm.com>, 
 Thomas Gleixner <tglx@...utronix.de>, Borislav Petkov <bp@...en8.de>, 
 Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, 
 "H. Peter Anvin" <hpa@...or.com>, "Rafael J. Wysocki" <rafael@...nel.org>, 
 Len Brown <lenb@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org, 
 linux-trace-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org, 
 sparclinux@...r.kernel.org, linux-s390@...r.kernel.org, 
 linux-acpi@...r.kernel.org, Joel Granados <joel.granados@...nel.org>
Subject: [PATCH 0/8] sysctl: Move sysctls from kern_table into their
 respective subsystems

This series relocates sysctl tables from kern_table to their respective
subsystems. To keep the scope manageable, this patchset focuses on
architecture-specific and core kernel sysctl tables. Further relocations
will follow once this series progresses.

By decentralizing sysctl registrations, subsystem maintainers regain
control over their sysctl interfaces, improving maintainability and
reducing the likelihood of merge conflicts. All this is made possible by
the work done to reduce the ctl_table memory footprint in commit
d7a76ec87195 ("sysctl: Remove check for sentinel element in ctl_table
arrays").

* Birds eye view of what has changed:
    - Archs: sparc, s390 and x86
        arch/s390/{lib/spinlock.c,mm/fault.c}
        arch/sparc/kernel/{Makefile,setup.c}
        arch/x86/include/asm/{setup.h,traps.h}
    - Kernel core:
        kernel/{panic.c,signal.c,trace/trace.c}
        kernel/events/{core.c,callchain.c}

* Testing was done by running sysctl selftests on x86_64 and 0-day.

Comments are greatly appreciated

Signed-off-by: Joel Granados <joel.granados@...nel.org>
---
Joel Granados (7):
      panic: Move panic ctl tables into panic.c
      signal: Move signal ctl tables into signal.c
      ftrace: Move trace sysctls into trace.c
      stack_tracer: move sysctl registration to kernel/trace/trace.c
      events: Move perf_event sysctls into kernel/events
      sparc: mv sparc sysctls into their own file under arch/sparc/kernel
      x86: Move sysctls into arch/x86

joel granados (1):
      s390: mv s390 sysctls into their own file under arch/s390 dir

 arch/s390/lib/spinlock.c     |  23 ++++
 arch/s390/mm/fault.c         |  17 +++
 arch/sparc/kernel/Makefile   |   1 +
 arch/sparc/kernel/setup.c    |  46 ++++++++
 arch/x86/include/asm/setup.h |   1 +
 arch/x86/include/asm/traps.h |   2 -
 arch/x86/kernel/setup.c      |  66 ++++++++++++
 include/linux/acpi.h         |   1 -
 include/linux/ftrace.h       |   7 --
 include/linux/perf_event.h   |   9 --
 kernel/events/callchain.c    |  38 +++++--
 kernel/events/core.c         |  57 ++++++++--
 kernel/panic.c               |  30 ++++++
 kernel/signal.c              |  11 ++
 kernel/sysctl.c              | 250 -------------------------------------------
 kernel/trace/trace.c         |  45 +++++++-
 16 files changed, 322 insertions(+), 282 deletions(-)
---
base-commit: 0ad2507d5d93f39619fc42372c347d6006b64319
change-id: 20250217-jag-mv_ctltables-cf75e470e085

Best regards,
-- 
Joel Granados <joel.granados@...nel.org>