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SubjectRe: [PATCH for 4.18 0/6] Restartable Sequences updates
----- On Jul 8, 2018, at 5:03 PM, Mathieu Desnoyers mathieu.desnoyers@efficios.com wrote:

> Following the recent discussion thread [1] about rseq uapi, here is
> a set of updates submitted for integration into 4.18. Those change all
> rseq __get_user/__put_user for get_user/put_user as discussed.

Considering that ppc32 does not implement 64-bit get_user(), I will re-spin
the whole series using __copy_from_user/__copy_to_user() to replace
__get_user()/__put_user() to load/store the 64-bit rseq_cs field.

I'm aiming for a minimal change at this stage of the rc cycle.

Thanks,

Mathieu

>
> Thanks,
>
> Mathieu
>
> [1]
> https://lkml.kernel.org/r/20180702223143.4663-1-mathieu.desnoyers@efficios.com
>
> Mathieu Desnoyers (6):
> rseq: use __u64 for rseq_cs fields, validate user inputs
> rseq: use get_user/put_user rather than __get_user/__put_user
> rseq: uapi: update uapi comments
> rseq: uapi: declare rseq_cs field as union, update includes
> rseq: remove unused types_32_64.h uapi header
> rseq/selftests: cleanup: update comment above rseq_prepare_unload
>
> include/uapi/linux/rseq.h | 102 ++++++++++++++++++++----------------
> include/uapi/linux/types_32_64.h | 50 ------------------
> kernel/rseq.c | 36 ++++++++-----
> tools/testing/selftests/rseq/rseq.h | 24 ++++++---
> 4 files changed, 97 insertions(+), 115 deletions(-)
> delete mode 100644 include/uapi/linux/types_32_64.h
>
> --
> 2.11.0

--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com

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