[GIT PULL] x86/splitlock changes for v5.14

From: Ingo Molnar
Date: Mon Jun 28 2021 - 03:42:43 EST


Please pull the latest x86/splitlock git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-splitlock-2021-06-28

# HEAD: d28397eaf4c27947a1ffc720d42e8b3a33ae1e2a Documentation/x86: Add ratelimit in buslock.rst

Changes in this cycle were:

- Add the "ratelimit:N" parameter to the split_lock_detect= boot option,
to rate-limit the generation of bus-lock exceptions. This is both
easier on system resources and kinder to offending applications than
the current policy of outright killing them.

- Document the split-lock detection feature and its parameters.



Fenghua Yu (4):
Documentation/x86: Add buslock.rst
x86/bus_lock: Set rate limit for bus lock
Documentation/admin-guide: Add bus lock ratelimit
Documentation/x86: Add ratelimit in buslock.rst

Documentation/admin-guide/kernel-parameters.txt | 8 ++
Documentation/x86/buslock.rst | 126 ++++++++++++++++++++++++
Documentation/x86/index.rst | 1 +
arch/x86/kernel/cpu/intel.c | 42 +++++++-
4 files changed, 175 insertions(+), 2 deletions(-)
create mode 100644 Documentation/x86/buslock.rst