From nobody Fri Dec 19 16:03:33 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5F6B934A76E; Wed, 5 Nov 2025 20:32:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762374740; cv=none; b=GrWwxS6+gg8uKEs6uhbsAZznEN+FLp0Huqv42VR0PcCByRhyqhX6qyiFtUC8TjrCgmCn1ZSjcANzmIdVW2kIGCsUrNA8aybl0MWNsBPOcOKZmbao1cLvzyNB05Ba6pnKYlpRcajV1VMsXUdfcZrnMEOAFj+kY0+RmRPV3fyeL5k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762374740; c=relaxed/simple; bh=w01VFRMtubctWz2T4Nx3dEUt4UuqBNsYAd2a1T0fPq0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=cj5d2I+jko+iTVWi4dy2I9vXRAy5fibR9P1bQrT/65rzxJCr/Z6lnrW9as4Pud8AIaGeY3n5SCrWecqoLzBNwZT3TzjIgjIr7Z9ljPcnwDDfxStEaEwL8/k8CUkk2GdRpXW0RLryGXQjNoHPfyoDtYr+tri6lHgysGt1ymWX7SA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=uqZW3TYI; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="uqZW3TYI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 70307C116D0; Wed, 5 Nov 2025 20:32:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762374739; bh=w01VFRMtubctWz2T4Nx3dEUt4UuqBNsYAd2a1T0fPq0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uqZW3TYIk8mUbww2X56rdRiYQ1kQmld9u1n6GbTpTg6SYFV34Wd2W5yPxzvyVZxzV tMfGdrOOvPSBgdqOpL5Jh4U0dRuOSMnOVV++80+mLxvhtqTjIDg5R39GcNLDi9G6x4 tU8Tj0JAf0HTrbnwdJm6+egaa2GOdbByhh0GudUB34l1JcqH6CEcAKiBFev1Xi33p6 Ze/LQqdtS5TV68EINoj92NayL9VyT++OvLb0QTcVkPKPgqggqqiwi3xuzU35fbYyhc DycbK0ufC5na2iAcjOe7mEEH07v7fWcBDjstD51YK6I9oIOnjWaFgKKyl6w4Fn2evj 2/PhVn5BqG6eA== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id 8C405CE0CA7; Wed, 5 Nov 2025 12:32:18 -0800 (PST) From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org, "Paul E. McKenney" , Andrii Nakryiko , Alexei Starovoitov , Peter Zijlstra , bpf@vger.kernel.org Subject: [PATCH v2 03/16] rcutorture: Test srcu_expedite_current() Date: Wed, 5 Nov 2025 12:32:03 -0800 Message-Id: <20251105203216.2701005-3-paulmck@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This commit adds a ->exp_current member to the rcu_torture_ops structure to test the srcu_expedite_current() function. Signed-off-by: Paul E. McKenney Cc: Andrii Nakryiko Cc: Alexei Starovoitov Cc: Peter Zijlstra Cc: --- kernel/rcu/rcutorture.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 318bea62ed3e..ea8077c08fac 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -389,6 +389,7 @@ struct rcu_torture_ops { void (*deferred_free)(struct rcu_torture *p); void (*sync)(void); void (*exp_sync)(void); + void (*exp_current)(void); unsigned long (*get_gp_state_exp)(void); unsigned long (*start_gp_poll_exp)(void); void (*start_gp_poll_exp_full)(struct rcu_gp_oldstate *rgosp); @@ -857,6 +858,11 @@ static void srcu_torture_synchronize_expedited(void) synchronize_srcu_expedited(srcu_ctlp); } =20 +static void srcu_torture_expedite_current(void) +{ + srcu_expedite_current(srcu_ctlp); +} + static struct rcu_torture_ops srcu_ops =3D { .ttype =3D SRCU_FLAVOR, .init =3D rcu_sync_torture_init, @@ -871,6 +877,7 @@ static struct rcu_torture_ops srcu_ops =3D { .deferred_free =3D srcu_torture_deferred_free, .sync =3D srcu_torture_synchronize, .exp_sync =3D srcu_torture_synchronize_expedited, + .exp_current =3D srcu_torture_expedite_current, .same_gp_state =3D same_state_synchronize_srcu, .get_comp_state =3D get_completed_synchronize_srcu, .get_gp_state =3D srcu_torture_get_gp_state, @@ -919,6 +926,7 @@ static struct rcu_torture_ops srcud_ops =3D { .deferred_free =3D srcu_torture_deferred_free, .sync =3D srcu_torture_synchronize, .exp_sync =3D srcu_torture_synchronize_expedited, + .exp_current =3D srcu_torture_expedite_current, .same_gp_state =3D same_state_synchronize_srcu, .get_comp_state =3D get_completed_synchronize_srcu, .get_gp_state =3D srcu_torture_get_gp_state, @@ -1700,6 +1708,8 @@ rcu_torture_writer(void *arg) ulo[i] =3D cur_ops->get_comp_state(); gp_snap =3D cur_ops->start_gp_poll(); rcu_torture_writer_state =3D RTWS_POLL_WAIT; + if (cur_ops->exp_current && !torture_random(&rand) % 0xff) + cur_ops->exp_current(); while (!cur_ops->poll_gp_state(gp_snap)) { gp_snap1 =3D cur_ops->get_gp_state(); for (i =3D 0; i < ulo_size; i++) @@ -1720,6 +1730,8 @@ rcu_torture_writer(void *arg) cur_ops->get_comp_state_full(&rgo[i]); cur_ops->start_gp_poll_full(&gp_snap_full); rcu_torture_writer_state =3D RTWS_POLL_WAIT_FULL; + if (cur_ops->exp_current && !torture_random(&rand) % 0xff) + cur_ops->exp_current(); while (!cur_ops->poll_gp_state_full(&gp_snap_full)) { cur_ops->get_gp_state_full(&gp_snap1_full); for (i =3D 0; i < rgo_size; i++) --=20 2.40.1