Kumar Kartikeya Dwivedi [off-list ref] writes:

On Mon, 16 Mar 2026 at 02:37, Ankur Arora [off-list ref] wrote:

quoted

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@vger.kernel.org
Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Ankur Arora <redacted>
--

Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>

Thanks Kumar.

--
ankur