[PATCH v3 0/2] Last minute rseq fixes for 7.0

[Mathieu Desnoyers]

Hi,

Here are two last minute rseq fixes aiming at 7.0.

The first is a clarification of a rseq registration comment to match the
rseq_size range checks.

The second ensures that the new scheduler slice extension field don't
end up exposing a rseq feature size equal to the original rseq size,
which would make life harder than it needs to be for userspace.

Updates since v2:

- Update comment above struct rseq in the uapi header.

Thanks,

Mathieu

CC: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
CC: Ingo Molnar <mingo@xxxxxxxxxx>
CC: Thomas Gleixner <tglx@xxxxxxxxxx>
CC: Carlos O'Donell <carlos@xxxxxxxxxx>
CC: Florian Weimer <fweimer@xxxxxxxxxx>
CC: Michael Jeanson <mjeanson@xxxxxxxxxxxx>

Mathieu Desnoyers (2):
  rseq: Clarify rseq registration rseq_size bound check comment
  rseq: slice ext: Ensure rseq feature size differs from original rseq
    size

 fs/binfmt_elf.c           |  3 ++-
 include/linux/rseq.h      | 12 ++++++++++++
 include/uapi/linux/rseq.h | 26 ++++++++++++++++++++++----
 kernel/rseq.c             |  8 +++++---
 4 files changed, 41 insertions(+), 8 deletions(-)

-- 
2.39.5