[PATCH 0/2] x86: allow to enable/disable modify_ldt at run time

[Willy Tarreau <w@1wt.eu>]

This is the second version. It adds a strategy for the sysctls so that we
can reject any change to a value that was already negative. This way it's
possible to disable modify_ldt temporarily or permanently (eg: lock down a
server) as suggested by Kees.

Willy Tarreau (2):
  sysctl: add a new generic strategy to make permanent changes on
    negative values
  x86/ldt: allow to disable modify_ldt at runtime

 Documentation/sysctl/kernel.txt | 16 +++++++++++++
 arch/x86/Kconfig                | 17 ++++++++++++++
 arch/x86/kernel/ldt.c           | 15 +++++++++++++
 kernel/sysctl.c                 | 50 +++++++++++++++++++++++++++++++++++++++++
 4 files changed, 98 insertions(+)

-- 
1.7.12.1