Reviewed-by: Kunwu Chan <[email protected]>
On Sat, Oct 10, 2026 at 4:31 PM Zqiang <[email protected]> wrote:
>
> The following commit introduces some new APIs:
>
> commit 'dab06d6f9379 ("srcutree: Add an atomic Tree SRCU")'
> commit '8df13f01608e ("rcu: Add full-sized polling for cond_sync_exp_full()")'
> commit 'd96c52fe4907 (rcu: Add polled expedited grace-period primitives)'
>
> synchronize_srcu_atomic(), cond_synchronize_rcu_expedited() and
> cond_synchronize_rcu_expedited_full().
>
> Sample output when running rcutorture:
>
> @counts[synchronize_srcu]: 48
> @counts[synchronize_rcu_expedited]: 74
> @counts[synchronize_rcu]: 102
> @counts[poll_state_synchronize_rcu_full]: 443
> @counts[call_rcu]: 2498
> @counts[synchronize_srcu_atomic]: 8717
> @counts[poll_state_synchronize_srcu]: 14849
>
> @counts[call_srcu]: 22
> @counts[synchronize_rcu]: 103
> @counts[start_poll_synchronize_rcu]: 1093
> @counts[cond_synchronize_rcu_expedited]: 5339
> @counts[cond_synchronize_rcu_expedited_full]: 5375
> @counts[synchronize_rcu_expedited]: 8134
> @counts[get_state_synchronize_rcu_full]: 17248
> @counts[get_state_synchronize_rcu]: 17266
> @counts[call_rcu]: 119168
>
> This commit therefore add thems to rcu-updaters.sh script.
>
> Signed-off-by: Zqiang <[email protected]>
> ---
> tools/rcu/rcu-updaters.sh | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/tools/rcu/rcu-updaters.sh b/tools/rcu/rcu-updaters.sh
> index 8a5df3f22550..a0f03a144f6a 100755
> --- a/tools/rcu/rcu-updaters.sh
> +++ b/tools/rcu/rcu-updaters.sh
> @@ -34,6 +34,7 @@ bpftrace -e 'kprobe:kvfree_call_rcu,
> kprobe:synchronize_rcu_tasks_trace,
> kprobe:synchronize_srcu,
> kprobe:synchronize_srcu_expedited,
> + kprobe:synchronize_srcu_atomic,
> kprobe:get_state_synchronize_rcu,
> kprobe:get_state_synchronize_rcu_full,
> kprobe:start_poll_synchronize_rcu,
> @@ -44,6 +45,8 @@ bpftrace -e 'kprobe:kvfree_call_rcu,
> kprobe:poll_state_synchronize_rcu_full,
> kprobe:cond_synchronize_rcu,
> kprobe:cond_synchronize_rcu_full,
> + kprobe:cond_synchronize_rcu_expedited,
> + kprobe:cond_synchronize_rcu_expedited_full,
> kprobe:start_poll_synchronize_srcu,
> kprobe:poll_state_synchronize_srcu,
> kprobe:rcu_gp_init
> --
> 2.17.1
>
