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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 67E6AC83F2C for ; Tue, 5 Sep 2023 16:25:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1351062AbjIEQZh (ORCPT ); Tue, 5 Sep 2023 12:25:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51408 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353615AbjIEGx2 (ORCPT ); Tue, 5 Sep 2023 02:53:28 -0400 Received: from mail-lj1-x229.google.com (mail-lj1-x229.google.com [IPv6:2a00:1450:4864:20::229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07FF61B4 for ; Mon, 4 Sep 2023 23:53:24 -0700 (PDT) Received: by mail-lj1-x229.google.com with SMTP id 38308e7fff4ca-2bcde83ce9fso35032411fa.1 for ; Mon, 04 Sep 2023 23:53:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1693896803; x=1694501603; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:date:from:from:to:cc:subject:date:message-id:reply-to; bh=+7q6noLayBRGFjtDqf1Mp8InGIGX9qawW6xGz5sWt8w=; b=VX2x7I04ZrVIGY27gGM8lH/tls/e3yuQGKMTv7Whfg2e8uimcAGvsgIkZedqOu+yQ1 StdBjj0znGTwAtTvhf7Njz/OYJHIEPF3NkoeraXCnP7eE7k+fRlWdeFTwrKLk5WBkj9b W03L471MxSAUlPj7fweK2Ch6O0tF97Dh7uk/6f09sAfoNrpR71Hv9p7bz/6JteABHOXl leoDUS/zD4H8xWRv3Xg1kSZFBsfWFAEQwilsYmHtdONq6OC4BpmgLbRs1GIfaJrAGdWv kmbnIQt9u27Nyn7kNB2G/Ly/6knExPHB39bTb02N64VyfmONI0vPhqddffno+Cafs5Pl I0aA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693896803; x=1694501603; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:date:from:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=+7q6noLayBRGFjtDqf1Mp8InGIGX9qawW6xGz5sWt8w=; b=HclRrQbhJHNNA0VAZ/96t/7T7AoRGUjHdVh7hRS1SqH7g3LGK2T5c4d9WOdt+F7nNc iF8D7gxX+B5YZ6SGOXUD2JTFg7r80I/XR0O2whoUAjiiGqa05BryvVMibXUmOdPWgAGs AWChhuy2sBRQeCT0YMT/S9tpRqgAD47ideN3itIuQAv5a8WE2lKascr8eOjz4J40PvuF p8pVn7NkmXaybu70Nsd7++SHmnhZoMmNKxDuibBhLCMf/7SQuyxOQNvWkPEb9b18V2ZH By46715SiGGZ7/EEwUTsViK2qSwxI3ArSuudV3TsRVWkgr7Py3htg8s63PdXI1CADjn4 Hr7Q== X-Gm-Message-State: AOJu0YxhiNr1dHbr0MkmthbWH3HYI3SGdPgBAqWj/ZMY7XpVnS2dGbFA 3TRIobHQt7SWzPcYnk83hEQ= X-Google-Smtp-Source: AGHT+IHteeM/jhvr0oU4JpMjn3nkwpQsCBKx2PhPYbyrmBcKaVXURGCntNDbubJnFJ3mtTz7VGMtMA== X-Received: by 2002:a2e:2c1a:0:b0:2bc:c4af:36b7 with SMTP id s26-20020a2e2c1a000000b002bcc4af36b7mr8455176ljs.39.1693896802809; Mon, 04 Sep 2023 23:53:22 -0700 (PDT) Received: from pc636 ([155.137.26.201]) by smtp.gmail.com with ESMTPSA id w21-20020a2e9bd5000000b002b702dfb510sm2677797ljj.39.2023.09.04.23.53.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Sep 2023 23:53:22 -0700 (PDT) From: Uladzislau Rezki X-Google-Original-From: Uladzislau Rezki Date: Tue, 5 Sep 2023 08:53:19 +0200 To: Andrew Morton Cc: Uladzislau Rezki , linux-mm@kvack.org, LKML , Baoquan He , Lorenzo Stoakes , Christoph Hellwig , Matthew Wilcox , "Liam R . Howlett" , Dave Chinner , "Paul E . McKenney" , Joel Fernandes , Oleksiy Avramchenko Subject: Re: [PATCH v2 0/9] Mitigate a vmap lock contention v2 Message-ID: References: <20230829081142.3619-1-urezki@gmail.com> <20230904125321.f827471daaf0997bf935cccd@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230904125321.f827471daaf0997bf935cccd@linux-foundation.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 04, 2023 at 12:53:21PM -0700, Andrew Morton wrote: > On Mon, 4 Sep 2023 16:55:38 +0200 Uladzislau Rezki wrote: > > > It would be good if this series somehow could be tested having some runtime > > from the people. > > I grabbed it. We're supposed to avoid adding new material to -next until > after -rc1 is released, but I've cheated before ;) > > That (inaccessible) pdf file is awkward. Could you please send out > a suitable [0/N] cover letter for this series, which can be incorporated > into the git record? > There will be a v3 anyway where i update the cover latter. The v2 is not adapted to recently introduced Joel's patch, which is not in linux-next but will land soon: From: "Joel Fernandes (Google)" Subject: mm/vmalloc: add a safer version of find_vm_area() for debug Date: Mon, 4 Sep 2023 18:08:04 +0000 It is unsafe to dump vmalloc area information when trying to do so from some contexts. Add a safer trylock version of the same function to do a best-effort VMA finding and use it from vmalloc_dump_obj(). Also it might come some extra reviews and comments for v2. Thanks! -- Uladzislau Rezki