From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B18E9ECDE44 for ; Sun, 28 Oct 2018 02:20:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6F8912082D for ; Sun, 28 Oct 2018 02:20:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=joelfernandes.org header.i=@joelfernandes.org header.b="XK7EbhOm" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6F8912082D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=joelfernandes.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729116AbeJ1LAH (ORCPT ); Sun, 28 Oct 2018 07:00:07 -0400 Received: from mail-pg1-f195.google.com ([209.85.215.195]:45046 "EHLO mail-pg1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728748AbeJ1LAH (ORCPT ); Sun, 28 Oct 2018 07:00:07 -0400 Received: by mail-pg1-f195.google.com with SMTP id w3-v6so2227989pgs.11 for ; Sat, 27 Oct 2018 19:17:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=joelfernandes.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=OV6S97yPusLF/VlbA3fQFOUSkIHv/BsXXCR1OOGy5MQ=; b=XK7EbhOmj2G1uDO6x13DXKL0ElEMA5hZaN++H0/jRYwPnC2Q7ri4tu+iQo3OWNHiUn 3nR3Mp745gNEQVxzdDK6eThaSGGOQ7oqqs0e6w2NE3ZDUnpDPt/2OtYvuImMJhZ5tC+y ZtBVUrPctsDtbQi2qxmjuw+Ne6seYDWwxuR24= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=OV6S97yPusLF/VlbA3fQFOUSkIHv/BsXXCR1OOGy5MQ=; b=esOHx5S4n5jNiQU5tmi9opqaDSe+I4NHHVFFHnfOzcZXGjlhu/OIoCsw8ZmRgWANQG lL2WeHM1JoeVP8sJXnMEkPmS3PaOFqedFXBbGm7J89DCuRSHY4l6AJVctlz3qRkS479o 0OVo6om3OfekC09hLmTsz8Vr34I+1X4t59s+IlyhOXizN+wLSsHtI730P62WGaFLuzx0 nbXa5oXk0zhkp2jtlytGe2S0CkSqPbZPH32Ovr+UBozPb73OAkqmOmcBX0uF28/Za27G O73Xhmbbxje5KJbu0tzpXs5RyS0CQixIgXfmbbBvBy/vV+odbZBjIJHJbjjJuKE/yjGm N47A== X-Gm-Message-State: AGRZ1gIQwtCBbd+v6zFIQKDl3a+Pjc6QT9abJUgPnDubQBwg1IFgBhPz VVuJ1Dcn5n9xCYbRyG/KTcAq6Pavb0E= X-Google-Smtp-Source: AJdET5fz0Wokeq8y8IrrZZ8Y/h14Zy/EiPQI17Jh6BPTTaii+ImCJdI1orVfmWg+/sdWRqpxcBhGXA== X-Received: by 2002:a62:c252:: with SMTP id l79-v6mr9570970pfg.141.1540693022585; Sat, 27 Oct 2018 19:17:02 -0700 (PDT) Received: from joelaf.mtv.corp.google.com ([2620:0:1000:1601:3aef:314f:b9ea:889f]) by smtp.gmail.com with ESMTPSA id f18-v6sm4471312pfh.0.2018.10.27.19.17.00 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 27 Oct 2018 19:17:01 -0700 (PDT) From: "Joel Fernandes (Google)" To: linux-kernel@vger.kernel.org Cc: "Joel Fernandes (Google)" , "Paul E. McKenney" Subject: [RFC] rcu: doc: update example about stale data Date: Sat, 27 Oct 2018 19:16:53 -0700 Message-Id: <20181028021653.155513-1-joel@joelfernandes.org> X-Mailer: git-send-email 2.19.1.568.g152ad8e336-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The RCU example for 'rejecting stale data' on system-call auditting stops iterating through the rules if a deleted one is found. It makes more sense to continue looking at other rules once a deleted one is rejected. Although the original example is fine, this makes it more meaningful. Signed-off-by: Joel Fernandes (Google) --- Documentation/RCU/listRCU.txt | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/Documentation/RCU/listRCU.txt b/Documentation/RCU/listRCU.txt index adb5a3782846..09e9a4fc723e 100644 --- a/Documentation/RCU/listRCU.txt +++ b/Documentation/RCU/listRCU.txt @@ -250,8 +250,7 @@ as follows: spin_lock(&e->lock); if (e->deleted) { spin_unlock(&e->lock); - rcu_read_unlock(); - return AUDIT_BUILD_CONTEXT; + continue; } rcu_read_unlock(); return state; -- 2.19.1.568.g152ad8e336-goog