On Tue, Apr 13, 2021 at 4:29 PM Mathieu Desnoyers
wrote:
>
> - On Apr 13, 2021, at 3:36 AM, Eric Dumazet eric.duma...@gmail.com wrote:
>
> > From: Eric Dumazet
> >
> > Two put_user() in rseq_update_cpu_id() are replaced
> > by a pair of unsafe_put_user() with appropriate surroundings.
> >
>
- On Apr 13, 2021, at 3:36 AM, Eric Dumazet eric.duma...@gmail.com wrote:
> From: Eric Dumazet
>
> Two put_user() in rseq_update_cpu_id() are replaced
> by a pair of unsafe_put_user() with appropriate surroundings.
>
> This removes one stac/clac pair on x86 in fast path.
>
>
From: Eric Dumazet
Two put_user() in rseq_update_cpu_id() are replaced
by a pair of unsafe_put_user() with appropriate surroundings.
This removes one stac/clac pair on x86 in fast path.
Signed-off-by: Eric Dumazet
Cc: Mathieu Desnoyers
Cc: Peter Zijlstra
Cc: "Paul E. McKenney"
Cc: Boqun
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