From patchwork Tue Dec 12 17:34:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Neeraj Upadhyay (AMD)" X-Patchwork-Id: 177491 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:bcd1:0:b0:403:3b70:6f57 with SMTP id r17csp7882974vqy; Tue, 12 Dec 2023 09:34:34 -0800 (PST) X-Google-Smtp-Source: AGHT+IF8n7kGq+K2Pr8ID/ofM9HkQfRX1112VhY9p/zl/10XUYmA/09G7kYrxxddBHaM2uoBGuA4 X-Received: by 2002:a05:6a20:1a9c:b0:190:65d3:7798 with SMTP id ci28-20020a056a201a9c00b0019065d37798mr3121954pzb.69.1702402473538; Tue, 12 Dec 2023 09:34:33 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1702402473; cv=none; d=google.com; s=arc-20160816; b=YtoYRc/q6YQqH6PKBD2u6A91vBOSAdkdtokgI1cIqebE8jEbSp0LDk8HNgwpe0pBmb gjhET8vp0amT551OUiC5b1HNflIrcFsn6xAz8Hp7CMXiclsms5WUznVkKP1ylP/m2Yp2 7gwTAnFoZesHKFo7TkfbxU7NM1KSIpwFMZlIS7bkdRiFiN2DF58OW+cAMYP5bkzNq3X0 GV6NCDkFGS/upR8hI71XrbRBXKNFeGpDet6AvR4y9MImO5hEG5bxMUOxyCFeGob3xtu+ d2UEnLrv+6l4sjr4cNAlsoicaBhhgPVknaxf2LDdiKqPV40ZW+WkhlA6xFkdd/IowFkF mthQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=kOjHx9AciPI0bIXgcXZ7IgsUeZnP8qbNbJ9CPNPXPQE=; fh=xAYDoelHALipiqadsBk3rnB2fjhk6gmc5bymQWpqQYY=; b=Ml+B4zisjFlNdURBZiUyc8pQmwRGaulQpUo918pUAL9L1o1+7ba8NVijWydhDViNFY Q+A7BKJsosTEQ0J+ACkcF8YNt77MJKTg2isWvPr37EftIdbKm31f6HQJ5e0I8tPkImPK 5nsGhGZYOBgVBFqr8HU5qYvdQ5reMM7Rw6ZbpR1w9QuDy307888rv3bGkd7xGpftoqif zdVND/atJzzyfln5raKhqF0MAPBe2aN6SXjwzGSck3f+KPMGhukrj71BsSSjjrF2NRBf jy3hDgHoDEK3U+7HgrtJ7vOgjOxpM8/O6cDvoNjHTJq7ahXCgsQQ1Z3tKaFuV7s6GXsJ 0hyA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=lHWQAdTX; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:4 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from howler.vger.email (howler.vger.email. [2620:137:e000::3:4]) by mx.google.com with ESMTPS id s1-20020a6550c1000000b005c688ef7549si7979519pgp.98.2023.12.12.09.34.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Dec 2023 09:34:33 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:4 as permitted sender) client-ip=2620:137:e000::3:4; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=lHWQAdTX; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:4 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by howler.vger.email (Postfix) with ESMTP id 0273380D1DE5; Tue, 12 Dec 2023 09:34:29 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at howler.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233093AbjLLReU (ORCPT + 99 others); Tue, 12 Dec 2023 12:34:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60316 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232358AbjLLReT (ORCPT ); Tue, 12 Dec 2023 12:34:19 -0500 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 894FF8E; Tue, 12 Dec 2023 09:34:25 -0800 (PST) Received: by mail-pj1-x1035.google.com with SMTP id 98e67ed59e1d1-28abd1ecb85so602476a91.0; Tue, 12 Dec 2023 09:34:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1702402464; x=1703007264; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=kOjHx9AciPI0bIXgcXZ7IgsUeZnP8qbNbJ9CPNPXPQE=; b=lHWQAdTXFMDmV/UPQDigQ/B08OhulArDOg8M+HDT7yHh7mIp/ksVoYLE8jYPITDQza J8lWRrDDn4ezQdvsm49m1eaYNe+PO+HOdAXmnJHFDl/yvwkjBl8QGeOQurUNfkA6zEKw 7A+lB/xA1EquCDk7wKtVLVCWGYAxy6K9Z9tT/B8550VQF2zwH/lSAUgK1Sjl4p8bxMy0 tsmAYgTH5YlxFCvzW+pS3nmxlEaqPcO02IQsRoYgtjHsWCaqra97vBgTdppH25VKvxfp At1ylBOnSUAiDbTKAeSMDkrDpCoD/66dTFU7dP1pw0dsnhesk70wgIyE33tTvPCY/xj+ QlOQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702402464; x=1703007264; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=kOjHx9AciPI0bIXgcXZ7IgsUeZnP8qbNbJ9CPNPXPQE=; b=Ol9FjyM4DgdpixGtRzFBXEvCC3GcebbpL/tS4ueNCHtKUKqL07bZXIoea3AWDpgSq5 P+gwanrpm6Nev4xFeVaFlwDj6OgBXUei5QQ+UhCK2m23ECIHgveo5fdDwz6dfZIFkbOV 13YrD1ght5ucZRyjVLs+JSBneXUxShIaXLli/N1zhOn97TbCiwTAdog/cmWfPLSyIx+u EgJ5onp6eGKl1qEMT8PWcYYrI0W/vh2AAPkCrNw7CXB/bYBYQ2gKHJKdU9Vy4JkiYpKr Ej3Cw5wwwFbXTqA2RcGvWLkVPnm6zKPh5bI6EWREDgqosPi/Db/pB1j4+nIVdBKMBW8C Gmyg== X-Gm-Message-State: AOJu0YxbQjYw5cgnMVgO4bg2S3Nzy6e7XPU3Xp1lX8C8E1IG8RDe0mfU NZMrXEIdsIDe1yHnAfasuDx1u8l+w5qRGifM X-Received: by 2002:a17:90b:b14:b0:286:c399:7c16 with SMTP id bf20-20020a17090b0b1400b00286c3997c16mr3097304pjb.44.1702402463875; Tue, 12 Dec 2023 09:34:23 -0800 (PST) Received: from localhost.localdomain ([101.0.63.152]) by smtp.gmail.com with ESMTPSA id nc4-20020a17090b37c400b00285545ac9d2sm9213862pjb.47.2023.12.12.09.34.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Dec 2023 09:34:23 -0800 (PST) From: "Neeraj Upadhyay (AMD)" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org, paulmck@kernel.org, Neeraj.Upadhyay@amd.com, Dan Carpenter , Neeraj Upadhyay Subject: [PATCH rcu 1/4] locktorture: Increase Hamming distance between call_rcu_chain and rcu_call_chains Date: Tue, 12 Dec 2023 23:04:11 +0530 Message-Id: <20231212173414.11602-1-neeraj.iitr10@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231212173334.GA11572@neeraj.linux> References: <20231212173334.GA11572@neeraj.linux> MIME-Version: 1.0 X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on howler.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (howler.vger.email [0.0.0.0]); Tue, 12 Dec 2023 09:34:29 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1785098376087592748 X-GMAIL-MSGID: 1785098376087592748 From: "Paul E. McKenney" One letter difference is really not enough, so this commit changes call_rcu_chain to call_rcu_chain_list. Reported-by: Dan Carpenter Signed-off-by: Paul E. McKenney Signed-off-by: Neeraj Upadhyay (AMD) --- kernel/locking/locktorture.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/kernel/locking/locktorture.c b/kernel/locking/locktorture.c index 69d3cd2cfc3b..415d81e6ce70 100644 --- a/kernel/locking/locktorture.c +++ b/kernel/locking/locktorture.c @@ -124,7 +124,7 @@ struct call_rcu_chain { struct rcu_head crc_rh; bool crc_stop; }; -struct call_rcu_chain *call_rcu_chain; +struct call_rcu_chain *call_rcu_chain_list; /* Forward reference. */ static void lock_torture_cleanup(void); @@ -1074,12 +1074,12 @@ static int call_rcu_chain_init(void) if (call_rcu_chains <= 0) return 0; - call_rcu_chain = kcalloc(call_rcu_chains, sizeof(*call_rcu_chain), GFP_KERNEL); - if (!call_rcu_chain) + call_rcu_chain_list = kcalloc(call_rcu_chains, sizeof(*call_rcu_chain_list), GFP_KERNEL); + if (!call_rcu_chain_list) return -ENOMEM; for (i = 0; i < call_rcu_chains; i++) { - call_rcu_chain[i].crc_stop = false; - call_rcu(&call_rcu_chain[i].crc_rh, call_rcu_chain_cb); + call_rcu_chain_list[i].crc_stop = false; + call_rcu(&call_rcu_chain_list[i].crc_rh, call_rcu_chain_cb); } return 0; } @@ -1089,13 +1089,13 @@ static void call_rcu_chain_cleanup(void) { int i; - if (!call_rcu_chain) + if (!call_rcu_chain_list) return; for (i = 0; i < call_rcu_chains; i++) - smp_store_release(&call_rcu_chain[i].crc_stop, true); + smp_store_release(&call_rcu_chain_list[i].crc_stop, true); rcu_barrier(); - kfree(call_rcu_chain); - call_rcu_chain = NULL; + kfree(call_rcu_chain_list); + call_rcu_chain_list = NULL; } static void lock_torture_cleanup(void) From patchwork Tue Dec 12 17:34:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Neeraj Upadhyay (AMD)" X-Patchwork-Id: 177492 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:bcd1:0:b0:403:3b70:6f57 with SMTP id r17csp7883101vqy; Tue, 12 Dec 2023 09:34:45 -0800 (PST) X-Google-Smtp-Source: AGHT+IEN+xmuDD7nN+TevtO2PasHw3ch00RRtmVegL6XCoLTu6hJlRMIn3/BsqCYdQHT8TZ5LX3u X-Received: by 2002:a05:6a00:3188:b0:6ce:4295:fec9 with SMTP id bj8-20020a056a00318800b006ce4295fec9mr5014344pfb.69.1702402485617; Tue, 12 Dec 2023 09:34:45 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1702402485; cv=none; d=google.com; s=arc-20160816; b=lJIwv8ooa3l8ieJo58HGBsjS+/xlkN+OrqHTwSSN7EQ8/vHZQtf0B3nZmFVYiuK8wG NYfJXvgc5FpcN5MW1vWjYTSLwZ14MoqZKKOfAX/0CCvWMnVgQ0D17ZEps2VAR8l5Jgw1 7qW+x+7p6Ld4DyjBdHGg4YSkFLY0LwXMrnbBARJfka7+tGt8xbokkmPEyUCEtVMmY4wp +mLfNA/CsZXKf5dUr4xdnsNvNOwiYeH12mPt5coAStu7Mh32SmHFUYSEUiu9iUikBwaI KHkgw4eDAltKs/58xLWM/8DFL8uFR7pVIOls45Sscy/WE1OtSJWz0HGcihNblNN+PYsa RWmw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=U7WPnTXwcd9ZzcvpmJ6cfpBxVRJlaEYkuDj4m5TKSZY=; fh=/X9g01iMktCugQX/3SP6s5KEeARXa7oVCKzSrNVaagE=; b=RcKKBBgNFTRtctb46kVxByhdwsbBwlKMow88YsQtDUbRJF5uSWAcUv3C8lAWss35SA eml/JCpyYvgsfV+tdweWo8arOlNdAsdnpQ+I/cLE94RKx9qqeFW/H3jhM0lRSohDdQIu sJ4uhZ5qb8tsVg58EY9DPd+ngBhzJhDW9ZAfDHWUcp6JWA5xRt9xuCjIPIqFrtSNgfuc AzgdMxaii87OE3eKOz4lLvDTPpJZeC77aZpg/ybGkRzvwDsZoCsjk5kQzFhfG0MY7783 Yw/GNDWlqZvc1C46ixiAbNpL1i1l8kga40bd2I8JHjWoIPOUhrycjbQYm21kSEFqVGQa /Zrg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=A8NqHMCk; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.38 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from fry.vger.email (fry.vger.email. [23.128.96.38]) by mx.google.com with ESMTPS id cm12-20020a056a020a0c00b005c200b11ba7si8404927pgb.763.2023.12.12.09.34.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Dec 2023 09:34:45 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.38 as permitted sender) client-ip=23.128.96.38; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=A8NqHMCk; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.38 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by fry.vger.email (Postfix) with ESMTP id 8094D80A5671; Tue, 12 Dec 2023 09:34:42 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at fry.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229963AbjLLRe2 (ORCPT + 99 others); Tue, 12 Dec 2023 12:34:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56832 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235084AbjLLRe0 (ORCPT ); Tue, 12 Dec 2023 12:34:26 -0500 Received: from mail-pg1-x52e.google.com (mail-pg1-x52e.google.com [IPv6:2607:f8b0:4864:20::52e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9081BE3; Tue, 12 Dec 2023 09:34:32 -0800 (PST) Received: by mail-pg1-x52e.google.com with SMTP id 41be03b00d2f7-53fbf2c42bfso4851481a12.3; Tue, 12 Dec 2023 09:34:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1702402471; x=1703007271; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=U7WPnTXwcd9ZzcvpmJ6cfpBxVRJlaEYkuDj4m5TKSZY=; b=A8NqHMCkM+oLrxx1u2ACtPDJ1Mlo3p6cF24tlvsX83FHvgbRnSuNaLW0L9TyAlW0ii JhzbVrSrxzqs2Pg+HPlm6okgifwT6421Kx0V74FKZWFUINqxO1LVk69R5aXMZyZowZC1 LvF26omnNoZb/m2hB+BSuuNRdhNxUG7ewgwk7MUEYBGrRmW9AdeYyuo/LLnzVzAGwydK emVCIOPIcxP89vqNDMlcD9P/tLXxF6sWSAY18oY1V7sp1zuNKT2JRjnr+qeaX3FLOoQH Bpi4GF3u/FNM3QTpvSyFrioqShY3KqzyOdMJyPpc+P605/fvxOa65oSxSEVRqRgR3QBA 2iiA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702402471; x=1703007271; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=U7WPnTXwcd9ZzcvpmJ6cfpBxVRJlaEYkuDj4m5TKSZY=; b=mxYsWHvBLwP5HLePVIaoMm6xCJ/T2sWVXMeff8w6ECJ9reFnT/MFtB9XjA6JJV+8Yx ig4fdKxuuDy6BFNODt31K/Uc7CvR0rlepv32lI8V7i9o/W4hlqi+aGzGyEbxZNNZRG9N JMIOyxOb0ec9JoafTHxLggZ7FHaVA048LIuB3Yaf/o/K5j6Qvzlb3QwrgLWCxM0coCWc uKUUEwiJq6wOGRJcYj7Ii1heUUfEMgMTcSlyfHgyrXbFc/dCeFEZ/ZPd8yncNUzDY+R3 b0wO0nNep1EYAz8stOEmW7sC3fbnLnOd3z5taOfOoZmxD5y09AuwqRBqdCFax/6F1tzn 7vEA== X-Gm-Message-State: AOJu0YyoURuxhHE259YivMCAEW4qv+4Hb89W6XOXOEqenCGvsPNuJNti NT8NsBPMT1iWMhW9+2tWjXlxGD35/w3gUFre X-Received: by 2002:a17:90b:11c8:b0:286:6cc0:cabb with SMTP id gv8-20020a17090b11c800b002866cc0cabbmr5231012pjb.50.1702402471068; Tue, 12 Dec 2023 09:34:31 -0800 (PST) Received: from localhost.localdomain ([101.0.63.152]) by smtp.gmail.com with ESMTPSA id nc4-20020a17090b37c400b00285545ac9d2sm9213862pjb.47.2023.12.12.09.34.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Dec 2023 09:34:30 -0800 (PST) From: "Neeraj Upadhyay (AMD)" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org, paulmck@kernel.org, Neeraj.Upadhyay@amd.com, =?utf-8?q?Thomas_Wei=C3=9Fschu?= =?utf-8?q?h?= , Neeraj Upadhyay Subject: [PATCH rcu 2/4] rcutorture: add nolibc init support for mips, ppc and rv64 Date: Tue, 12 Dec 2023 23:04:12 +0530 Message-Id: <20231212173414.11602-2-neeraj.iitr10@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231212173334.GA11572@neeraj.linux> References: <20231212173334.GA11572@neeraj.linux> MIME-Version: 1.0 X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on fry.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (fry.vger.email [0.0.0.0]); Tue, 12 Dec 2023 09:34:42 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1785098388824179909 X-GMAIL-MSGID: 1785098388824179909 From: Thomas Weißschuh Use nolibc for all support architectures. Signed-off-by: Thomas Weißschuh Signed-off-by: Paul E. McKenney Signed-off-by: Neeraj Upadhyay (AMD) --- tools/testing/selftests/rcutorture/bin/mkinitrd.sh | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/rcutorture/bin/mkinitrd.sh b/tools/testing/selftests/rcutorture/bin/mkinitrd.sh index 212c52ca90b5..f3f867129560 100755 --- a/tools/testing/selftests/rcutorture/bin/mkinitrd.sh +++ b/tools/testing/selftests/rcutorture/bin/mkinitrd.sh @@ -67,7 +67,10 @@ ___EOF___ # build using nolibc on supported archs (smaller executable) and fall # back to regular glibc on other ones. if echo -e "#if __x86_64__||__i386__||__i486__||__i586__||__i686__" \ - "||__ARM_EABI__||__aarch64__||__s390x__||__loongarch__\nyes\n#endif" \ + "||__ARM_EABI__||__aarch64__||(__mips__ && _ABIO32)" \ + "||__powerpc__||(__riscv && __riscv_xlen == 64)" \ + "||__s390x__||__loongarch__" \ + "\nyes\n#endif" \ | ${CROSS_COMPILE}gcc -E -nostdlib -xc - \ | grep -q '^yes'; then # architecture supported by nolibc From patchwork Tue Dec 12 17:34:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Neeraj Upadhyay (AMD)" X-Patchwork-Id: 177493 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:bcd1:0:b0:403:3b70:6f57 with SMTP id r17csp7883170vqy; Tue, 12 Dec 2023 09:34:51 -0800 (PST) X-Google-Smtp-Source: AGHT+IEyUGHDDDPdxZTuhJTnXuFVn90azR4ZXNb+l8rqqEFmzYrHix1e+Fi31nkrNVpwlHSPQ7p+ X-Received: by 2002:a17:902:e851:b0:1d0:9278:b837 with SMTP id t17-20020a170902e85100b001d09278b837mr3859335plg.106.1702402491626; Tue, 12 Dec 2023 09:34:51 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1702402491; cv=none; d=google.com; s=arc-20160816; b=MZ0QI1Ki3T6nqZjA0GUtzmBrEO/fo01GRJf03X6T5Jer4Fd5LlfaOJ1r6rM/RMsIx/ NDpFRf8QeX5zyJkVA3XHZkYZpF/d6BJI180kBw1j5dMg3hS2argq5DiV8U3pyUe7ANfZ xK0bczkFpu9DbLNHfCYP4D3BcqZ3O170DcdwarPUmBXEJogi/3TcHdSAYaftddexupAZ xARSSUwXWcC29ifvWHHGYBG48WRUsbC4I/YJ3bDUAv7fj0E4W8N6IXXvldpWbO2+m7bl mhe+bZgABA4pNpNLdgIHv23yhqPexDSChVclCRLk8937+MEhlO32ajttQqwpnddjIPx+ VILA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=Iw+CIAg8alL2TfLLUR0OkhwDoqn5kHDhii4hhgbuJek=; fh=4HjHDDQPeAy2p6+k0yoijJGQxGiPXyBfXUNc6Mv5jtE=; b=QoDDxWIEwZSmwUhaRuDyS5LtNE/atUJp+KAXmjfyVB6AizWbCLuA5FmZnNDP33Y3bQ X89uE+9jGUXaaCYGvz4dZDdjquC9nMbfPU/pqF96C5rLmD/81OX+w+xPIyHaGFLOyg4I J/TVEUj1NFtNoyg96utrfFEh3J+HxiZrnz3LdixK/lJAlyk87M90Vee7AqHD2ZWoJuq+ 43yeTmSIhE+PNQ6Vm4xBR8GLlBKlD4rZHRBHZx4f7lWqyAwqG2KRFCHt/gdECQfROfHq 2G1b9sDLUIruAITKBfoXrTy8RrCDz+2xWuwwIUwlR8oILBifzaDfBfnNr9U6fNy/7kGi saIg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=DlavEJZG; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:2 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from agentk.vger.email (agentk.vger.email. [2620:137:e000::3:2]) by mx.google.com with ESMTPS id iy18-20020a170903131200b001d34126d654si754509plb.232.2023.12.12.09.34.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Dec 2023 09:34:51 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:2 as permitted sender) client-ip=2620:137:e000::3:2; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=DlavEJZG; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:2 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by agentk.vger.email (Postfix) with ESMTP id 33CD180ABDFC; Tue, 12 Dec 2023 09:34:48 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at agentk.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235105AbjLLRee (ORCPT + 99 others); Tue, 12 Dec 2023 12:34:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57032 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235066AbjLLReb (ORCPT ); Tue, 12 Dec 2023 12:34:31 -0500 Received: from mail-pj1-x1032.google.com (mail-pj1-x1032.google.com [IPv6:2607:f8b0:4864:20::1032]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2920CB9; Tue, 12 Dec 2023 09:34:37 -0800 (PST) Received: by mail-pj1-x1032.google.com with SMTP id 98e67ed59e1d1-28ac11407cfso360952a91.1; Tue, 12 Dec 2023 09:34:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1702402475; x=1703007275; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Iw+CIAg8alL2TfLLUR0OkhwDoqn5kHDhii4hhgbuJek=; b=DlavEJZGBXl+5cmGgQwEmIbxX3ePKQdO3tVf57LJ3ea6fpNAsL0uxMoBj0x/6JuVON IAFaw6Obb553wk4DkVLxVM2/Z3u2+dWQVC3gbvs8Od5Ng3clkQX0RUXmYyy56hv5A2kH LxbImWu9cXjKxj2OCoqpVgAVIyTWZVMliqbGzMjD5962ZmTfjQiQzAx6QkIqIOe047zT lwNFe++RtlMFaaawzqgjN8jZOtFH+/F8OUIEMqDYk5NS5AKWf9FswTyjnW7clLFDM49N eyucsIMCYaJ5Cqpuh1EI0CQ4yZC0H4rfHz24CLMslbhG/9pjzxaVRSwmiNuSkKMkcFYW JPSQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702402475; x=1703007275; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Iw+CIAg8alL2TfLLUR0OkhwDoqn5kHDhii4hhgbuJek=; b=lcbk5Um76aqpLyEVKqaY4AOORtdJ3fhdQDrx3uO1x82rbxg1SlB2C2HibfJspQrM0Q 9o8Yy+Kw8OihtJwnStsmIPK3yNR6Bxu3jOPjSEIr2pcGsv6xBqlk29ryJPG9BFjFwmqE t1pSFj0PFe0cb65iCGrDIPj/Y8F253pJo6uE56Lr2KrpdlNuTHr3/Uf2VkYzXSmYlYeo w9KFaiTTN2mDRBUql4ITzqBtBUZBYdL/+JGln6Ug8CiKw/6Hd6ql3Wtrs2+ZF16CxMTu RK3OO3LH2UxEsBFj6LofEGhTr6JZYMBA9SMKAGo8J38O+kYTe93BO9VXPOK7xdSUl38o mx8A== X-Gm-Message-State: AOJu0YxoC/i5CMRrpRdR1VnbXviX5fp0/8kbYC4zwdooDDCAxupCcrcf Z/B8Hjnr0ApnD3AhGeIh7lC8+QDgC8CVyOsx X-Received: by 2002:a17:90a:3ec1:b0:280:24c7:509 with SMTP id k59-20020a17090a3ec100b0028024c70509mr2932704pjc.46.1702402474615; Tue, 12 Dec 2023 09:34:34 -0800 (PST) Received: from localhost.localdomain ([101.0.63.152]) by smtp.gmail.com with ESMTPSA id nc4-20020a17090b37c400b00285545ac9d2sm9213862pjb.47.2023.12.12.09.34.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Dec 2023 09:34:34 -0800 (PST) From: "Neeraj Upadhyay (AMD)" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org, paulmck@kernel.org, Neeraj.Upadhyay@amd.com, Neeraj Upadhyay Subject: [PATCH rcu 3/4] rcutorture: Add mid-sized stall to TREE07 Date: Tue, 12 Dec 2023 23:04:13 +0530 Message-Id: <20231212173414.11602-3-neeraj.iitr10@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231212173334.GA11572@neeraj.linux> References: <20231212173334.GA11572@neeraj.linux> MIME-Version: 1.0 X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Tue, 12 Dec 2023 09:34:48 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1785098395295901482 X-GMAIL-MSGID: 1785098395295901482 From: "Paul E. McKenney" There is code in rcu_implicit_dynticks_qs() that checks for the current grace period being halfway to the RCU CPU stall timeout, but rcutorture currently does not test this code. This commit therefore adds a 14-second stall to the TREE07 scenario in order to test this code given the default RCU CPU stall warning timeout of 21 seconds. Signed-off-by: Paul E. McKenney Signed-off-by: Neeraj Upadhyay (AMD) --- tools/testing/selftests/rcutorture/configs/rcu/TREE07.boot | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE07.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE07.boot index d44609937503..979edbf4c820 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TREE07.boot +++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE07.boot @@ -1 +1,4 @@ nohz_full=2-9 +rcutorture.stall_cpu=14 +rcutorture.stall_cpu_holdoff=90 +rcutorture.fwd_progress=0 From patchwork Tue Dec 12 17:34:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Neeraj Upadhyay (AMD)" X-Patchwork-Id: 177494 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:bcd1:0:b0:403:3b70:6f57 with SMTP id r17csp7883196vqy; Tue, 12 Dec 2023 09:34:54 -0800 (PST) X-Google-Smtp-Source: AGHT+IEOuQ0ho2+pwgvzOUeVJPocPqSD4krJSmuqWAjWYW+ln1iihg6A0ayyu+J42sx69BPC4EG3 X-Received: by 2002:a17:903:2292:b0:1d0:92a0:4929 with SMTP id b18-20020a170903229200b001d092a04929mr8335770plh.85.1702402494123; Tue, 12 Dec 2023 09:34:54 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1702402494; cv=none; d=google.com; s=arc-20160816; b=U05+7+pIqzWOXNEYe4NeAipplJ6u1gbjEmf8D+8wmeqzs5XZ+LFCw9mEcvsIcoEPBX 15sDiMXOj8tk9wJDaVTmaB5MBhUajmhefMTjLwv+blgqdorSF2U6q8/RB/smJNIwBA9z 62qkJ4YgXT+cHF9BCzQ5Xr1cJBw/i/u/CyrzRFHICxG00q6wUewuMannUhdKZutsNDEj EzCqFYJA4st5QmW6zESmfYzd5LwujIL+bIG+UfDw4r/8nztEsEg5ciRfEXxia0yesWRc zJNzafT+wCJP77Ci4M7DQADq8Tryz6uj+j+qzW/uIFNzvLtk968poeYaf/y80EJF4PYu yO6Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=LjqNPmTsqEqqrVWfas3u5VADPjrH7KEM9DoAzSldHo8=; fh=8RfpOYN+nJKNcYB3XlCk21tjLy+CXyrPChTxeHORjzA=; b=nX2qMHdWbevNm/Dd08Zz7ttbtqrj47WxdVOi0EjYSx/22ttIyQvR+tEyQHT6f5+TK7 bbqPl1Rs3Ee/VqdJPKXnEjZJ4aTutYYDAGwHpoNKxr44YsEa+13hsggAJ6gmZPxaLczp WWMYePimfUpxi5VK2fZk4h64pusIXWcGyYM9ybQs/KXIKYwSDo/eS25q2j1d0pfoG/0r B01dvVLm90BMreMtrQUrKivPUcT26g++vtf3WuMl9eXdRF6vGjUzIPuDSCkl2GPHGH1q DHBCzCiU+Z95wskZbYplyop6kTR6XsKk03I9TjtHyabSsf4n5Abel6M0dY1CF7oiZt3o Yp1g== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=C2efV6wn; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.36 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from pete.vger.email (pete.vger.email. [23.128.96.36]) by mx.google.com with ESMTPS id u9-20020a170902e80900b001cf579f758asi8357503plg.437.2023.12.12.09.34.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Dec 2023 09:34:54 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.36 as permitted sender) client-ip=23.128.96.36; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=C2efV6wn; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.36 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by pete.vger.email (Postfix) with ESMTP id AAE2980239C4; Tue, 12 Dec 2023 09:34:51 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at pete.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235127AbjLLReg (ORCPT + 99 others); Tue, 12 Dec 2023 12:34:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56960 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235135AbjLLRed (ORCPT ); Tue, 12 Dec 2023 12:34:33 -0500 Received: from mail-pg1-x52f.google.com (mail-pg1-x52f.google.com [IPv6:2607:f8b0:4864:20::52f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C2302CF; Tue, 12 Dec 2023 09:34:39 -0800 (PST) Received: by mail-pg1-x52f.google.com with SMTP id 41be03b00d2f7-5bdb0be3591so4932404a12.2; Tue, 12 Dec 2023 09:34:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1702402479; x=1703007279; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=LjqNPmTsqEqqrVWfas3u5VADPjrH7KEM9DoAzSldHo8=; b=C2efV6wnQoeNuG1XKhWn2EH7YE8h3aRgl0xJBF4kyooXrLhdy2PlNb+G+Jm2GRlJWK hmwtgBLvJgKYQ0csInWxFSh0nl77YYQ2uttXKsCjvUJruJG/CZQlLMxBKGp+fRO7qWJZ bztBfZqlK4RRejx5+/ricNkNK6sq0gka1j9emqOQ3AgGQZJD/+jqDmofRBNsVA/A39rX 2rJLbQ1Vr2wnwS/7YfVSEXV4t6dnQijanazZJJM3w0HxIKCgfqbUkYilN7TD3eyVOsda HXeaUrAYZBpujWINircmBTHZkNIN9zpgROgy6MF9Hc5iQdgTLLGJvhUi8rDUcr8AWVMa pBxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702402479; x=1703007279; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=LjqNPmTsqEqqrVWfas3u5VADPjrH7KEM9DoAzSldHo8=; b=QP/PsPXD3S/a4mPZ943bXuMeoWJrmNJQ+r/8VMRKtuAaYv/tnR6RSS9Q1Ccp06m/AB KifxfFhHS6P8mCpCxzfsTzI0NqCNCk4mcd7tEDu7XBrzbxbPXCzOJ4AkIg9C4/n0msBZ kXJsYzq9RZLTLPFJJd10cIQQKAEgE1dO3ilDMyl49uytY92ppCT/sc4iEdBN6HhxXVSC twuLXsLBpNAaRdgF4FiggsLDEP1BRqjw82i8OGDi1T9fTWEH4qLpvTshu4FHTqZ0M/pr fV4er5VNHqPsOxmUOQ2q/Auwd4E2oKoKavYaW23AGhdj8ImJ3YN+vOzXsAwJV3wTV+TE Wjcw== X-Gm-Message-State: AOJu0YwTQnq0BxjSFgIgyorOVTrQlCgNxzmYH6z8lQJTniMMea4AZC8R u7Rn2pFrXfexWHVpFltem2t5O/uNTB2331NG X-Received: by 2002:a17:90b:1e07:b0:286:6cc1:3f25 with SMTP id pg7-20020a17090b1e0700b002866cc13f25mr5109756pjb.92.1702402478556; Tue, 12 Dec 2023 09:34:38 -0800 (PST) Received: from localhost.localdomain ([101.0.63.152]) by smtp.gmail.com with ESMTPSA id nc4-20020a17090b37c400b00285545ac9d2sm9213862pjb.47.2023.12.12.09.34.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Dec 2023 09:34:38 -0800 (PST) From: "Neeraj Upadhyay (AMD)" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org, paulmck@kernel.org, Neeraj.Upadhyay@amd.com, Zqiang , Neeraj Upadhyay Subject: [PATCH rcu 4/4] rcutorture: Add fqs_holdoff check before fqs_task is created Date: Tue, 12 Dec 2023 23:04:14 +0530 Message-Id: <20231212173414.11602-4-neeraj.iitr10@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231212173334.GA11572@neeraj.linux> References: <20231212173334.GA11572@neeraj.linux> MIME-Version: 1.0 X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on pete.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (pete.vger.email [0.0.0.0]); Tue, 12 Dec 2023 09:34:51 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1785098397901000310 X-GMAIL-MSGID: 1785098397901000310 From: Zqiang For rcutorture tests on RCU implementations that support force-quiescent-state operations and that set the fqs_duration module parameter greater than zero, the fqs_task kthread will be created. However, if the fqs_holdoff module parameter is not set, then its default value of zero will cause fqs_task enter a long-term busy loop until stopped by kthread_stop(). This commit therefore adds a fqs_holdoff check before the fqs_task is created, making sure that whenever the fqs_task is created, the fqs_holdoff will be greater than zero. Signed-off-by: Zqiang Signed-off-by: Paul E. McKenney Signed-off-by: Neeraj Upadhyay (AMD) --- kernel/rcu/rcutorture.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 30fc9d34e329..a0b2520bd32b 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -3872,7 +3872,9 @@ rcu_torture_init(void) } if (fqs_duration < 0) fqs_duration = 0; - if (fqs_duration) { + if (fqs_holdoff < 0) + fqs_holdoff = 0; + if (fqs_duration && fqs_holdoff) { /* Create the fqs thread */ firsterr = torture_create_kthread(rcu_torture_fqs, NULL, fqs_task);