Re: [PATCH v10 09/12] bpf/rqspinlock: switch check_timeout() to a clock interface

[Kumar Kartikeya Dwivedi]

On Mon, 16 Mar 2026 at 02:37, Ankur Arora <ankur.a.arora@xxxxxxxxxx> wrote:
>
> check_timeout() gets the current time value and depending on how
> much time has passed, checks for deadlock or times out, returning 0
> or -errno on deadlock or timeout.
>
> Switch this out to a clock style interface, where it functions as a
> clock in the "lock-domain", returning the current time until a
> deadlock or timeout occurs. Once a deadlock or timeout has occurred,
> it stops functioning as a clock and returns error.
>
> Also adjust the RES_CHECK_TIMEOUT macro to discard the clock value
> when updating the explicit return status.
>
> Cc: bpf@xxxxxxxxxxxxxxx
> Cc: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx>
> Cc: Alexei Starovoitov <ast@xxxxxxxxxx>
> Signed-off-by: Ankur Arora <ankur.a.arora@xxxxxxxxxx>
> --

Acked-by: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx>

>  [...]
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