[GIT PULL] sysctl changes for v7.4-rc1

[GIT PULL] sysctl changes for v7.4-rc1

[Joel Granados]

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The following changes since commit df2908090cda368b01ff43709f51890076c56157:

  Linux 7.3-rc2 (2026-09-06 15:07:20 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl.git/ tags/sysctl-7.04-rc1

for you to fetch changes up to 7b08e5851884e4ad207a6401b1dcffdb03d43c28:

  selftests: sysctl: Check the sign of a negative jiffies read (2026-09-25 14:00:00 +0200)

----------------------------------------------------------------
Summary

* Disallow partial vector updates

  Stage sysctl vector writes before updating. Removes the chance of leaving a
  sysctl vector partially updated due to erroneous input. This is not an atomic
  write; a concurrent reader can still see a partially updated vector.

* Remove redundant sysctl config guards

  Remove locations where (CONFIG_SYSCTL && CONFIG_PROC_FS) was checked. They
  are superfluous as CONFIG_SYSCTL now depends directly on CONFIG_PROC_FS.

* Rewrite selftests using KTAP helpers

  Each test now reports its own KTAP result and runs in a subshell. Test suite
  continues after failure.

* Misc

  Fix a use-after-free in the selftests test_sysctl module. Quiet an unused
  variable warning in fs/proc/proc_sysctl.c:init_header(). Add tests for
  partial vector updates and the int jiffies converters.

* Testing

  This series was run through the sysctl selftests and kunit in x86_64. It
  landed in linux-next between rc2 and rc3, giving the latest changes
  considerable of testing

----------------------------------------------------------------
Ethan Nelson-Moore (1):
      sysctl: quiet unused variable warning in fs/proc/proc_sysctl.c:init_header()

Joel Granados (5):
      sysctl: Split data conversion and file position handling
      sysctl: Reject uint arrays before calling the general proc_vec
      sysctl: Disallow partial updates for erroneous sysctl vectors
      sysctl: Add 0013 to test partially updated vectors
      sysctl: Rewrite selftests on top of KTAP helpers

Oleg Nesterov (3):
      sysctl: collapse redundant CONFIG_SYSCTL nesting in kernel/sysctl.c
      sysctl: consolidate CONFIG_SYSCTL into a single block in kernel/sysctl.c
      sysctl: remove redundant CONFIG_PROC_FS checks

Yibo Tan (1):
      sysctl: unregister tables before freeing bitmap

Zhan Xusheng (2):
      sysctl: Add jiffies converter entries to the test module
      selftests: sysctl: Check the sign of a negative jiffies read

 drivers/parport/procfs.c                 |    6 +-
 fs/dcache.c                              |    2 +-
 fs/file_table.c                          |    2 +-
 fs/proc/proc_sysctl.c                    |    2 +-
 kernel/sysctl.c                          |  459 ++++++----
 lib/test_sysctl.c                        |   33 +-
 tools/testing/selftests/sysctl/sysctl.sh | 1476 ++++++++++++------------------
 7 files changed, 881 insertions(+), 1099 deletions(-)

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