From patchwork Thu Dec 12 18:49:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Paul E. McKenney" X-Patchwork-Id: 13905849 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 CA0431925BC; Thu, 12 Dec 2024 18:50:00 +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=1734029400; cv=none; b=ZibGeaEVJJGwOI0POms5W+TxJ/4CRigbVNb5HtJUCZVj21EywqBVCV3Q1y/uZiCnURKQktDkSz/LXMcOzlHsNLX5ymiuKjsmRzbRW39hefOsxWEZ/oCrAfHna9StthSQf7cUb7RNk3gC2EUS748GINg1G2HozBcZqmucUle7Dtg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734029400; c=relaxed/simple; bh=oXm7pdu/y2pIm0x3QXBX2ZtgROLA8wEBkuuwv+gFUqM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=eCsWA1AwX1d3a/74UGS47tS4qdLBs8o8uuLL5rzEd2QUNCA64Y8nKvYJbvgDJ0I1ctbZ47SoDbdJLwBgLOSIBVDvS+DLcVdY6IAf6LBiaudtpiPp4rmBzsNEGtb6J0CWAjLNVapQXpXf2yCAg+VmXo5DFbieK2Fexp2U7U/cgK0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VJYFMX56; 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="VJYFMX56" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 83FA6C4AF0D; Thu, 12 Dec 2024 18:50:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734029400; bh=oXm7pdu/y2pIm0x3QXBX2ZtgROLA8wEBkuuwv+gFUqM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VJYFMX56ZfJefwmAGRNq5EjPxkPngJMHcRoPIBBcj6yw7ariwtaXJcZ+ydhSyW8wf ACNguzcrNVME8MCFLC34Y2cFqYvkZf35q51leb9lwVjmf/S4O5LCMmWOWgFTd7pRww 1sLzZ//zqNkBIYuHPbprnUdirsu0O11PvbOTWDnJIfG4AqRMSKpkQ9kgyhx3iZ97o7 VZeqNyx2MPlRo0Dt+YIBZzGdVfNZ50axwiE1CiIXwatnVPmQvJmkGdvNdrTM4/r/e5 BzGjgXJaMxHRxLIix9LnxEwEpSpCAfiD9uH6OOAfpLyLzpjhOdVNGy+hQdnQASPWrf 8DaM1Dwjpuy6A== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id CAA5ECE10D9; Thu, 12 Dec 2024 10:49:59 -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" , Frederic Weisbecker Subject: [PATCH rcu 09/18] rcutorture: Add full read-side contexts to "busted" torture type Date: Thu, 12 Dec 2024 10:49:48 -0800 Message-Id: <20241212184957.2127441-9-paulmck@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <62e4d9a4-18ad-49b3-9656-23e17b78033f@paulmck-laptop> References: <62e4d9a4-18ad-49b3-9656-23e17b78033f@paulmck-laptop> Precedence: bulk X-Mailing-List: rcu@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The purpose of the "busted" torture type is to test rcutorture code paths used only when a too-short grace period is detected. Currently, "busted" only uses normal rcu_read_lock()-style readers, which fails to exercise much of the "Failure/close-call rcutorture reader segments" functionality. This commit therefore sets the .extendables field of rcu_busted_ops to RCUTORTURE_MAX_EXTEND in order to more fully exercise the reporting. Signed-off-by: Paul E. McKenney Cc: Frederic Weisbecker --- kernel/rcu/rcutorture.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 61b092a3dc3f3..81b3743f81dca 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -639,6 +639,7 @@ static struct rcu_torture_ops rcu_busted_ops = { .exp_sync = synchronize_rcu_busted, .call = call_rcu_busted, .irq_capable = 1, + .extendables = RCUTORTURE_MAX_EXTEND, .name = "busted" };