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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 70092C76196 for ; Tue, 11 Apr 2023 16:56:18 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id DCCE6900003; Tue, 11 Apr 2023 12:56:17 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D7CB0900002; Tue, 11 Apr 2023 12:56:17 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C6AE6900003; Tue, 11 Apr 2023 12:56:17 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id BAB11900002 for ; Tue, 11 Apr 2023 12:56:17 -0400 (EDT) Received: from smtpin10.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 752BFAC314 for ; Tue, 11 Apr 2023 16:56:17 +0000 (UTC) X-FDA: 80669713194.10.0A75F04 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf19.hostedemail.com (Postfix) with ESMTP id CDCDE1A0002 for ; Tue, 11 Apr 2023 16:56:12 +0000 (UTC) Authentication-Results: imf19.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=hODkppCc; spf=none (imf19.hostedemail.com: domain of BATV+c6fa32d9e84a85109083+7170+infradead.org+hch@bombadil.srs.infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=BATV+c6fa32d9e84a85109083+7170+infradead.org+hch@bombadil.srs.infradead.org; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1681232173; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=uHkpIHsDJMVccFbSYcXY2khZL4erb7v3HbneWR1g+cI=; b=GiSXs8Q5nExEByQvOGUSWsPt+QNW3cIpWeli5/BJStnynZEtU41agw6E9IRqyBl9R8T9Pr NmJRuS415bZHLayZLuSHQHevSKRUFjAtpDTOsM5f3Gn3MXnbtCv9jlCdvRtTeR8Njt66MR 0qo4u/luyvPSSmuxhx9rhTZd4a3uZPY= ARC-Authentication-Results: i=1; imf19.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=hODkppCc; spf=none (imf19.hostedemail.com: domain of BATV+c6fa32d9e84a85109083+7170+infradead.org+hch@bombadil.srs.infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=BATV+c6fa32d9e84a85109083+7170+infradead.org+hch@bombadil.srs.infradead.org; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1681232173; a=rsa-sha256; cv=none; b=Y+crMNT/HiHClMPmbZW1B/s8KTvT5SlDb4UI4NwqsUcveXmGXPO6c71b6ncHcs7ADf0xg7 1WD4e19H/BJx8Cw83t4SSNy9xSjCR9NCMnoctP4JycSdB3qcGgRip7lZc4PHAWhe6G2IA4 my3heZb5vlKXLhi4V/Krj5Yeqq4BPdQ= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=uHkpIHsDJMVccFbSYcXY2khZL4erb7v3HbneWR1g+cI=; b=hODkppCct9jvuF89XdIFeuy+hj psheHfo47WPiYv79IiaobiP10JLQBdXzLFHHWoxDMfXylhpqdnSuoc3TblR7Yut6JdQBar+ZpKhoB V5POVxqt1qprzAAUf+9XS8V/2SZCly1lPE5OnB4UiQbiKx+YXgdawn8nNDOhdgxVINApjVhkyOort Gg8Vlv0udquk9IMWRng6x3fjBDxdhLKd6E86UIHAaj8fmQl+LJx/TzWWK4CN3qcGS9WiCFc4f12or GraGpYNmdf2tQZaJ4nFvdZy11IR0fapBOvLNRsA0eQTBElCv5Z10BKgoTRwOSJpL//IkkilQnkCie xxo8CtQA==; Received: from hch by bombadil.infradead.org with local (Exim 4.96 #2 (Red Hat Linux)) id 1pmHHV-000dKG-2A; Tue, 11 Apr 2023 16:55:45 +0000 Date: Tue, 11 Apr 2023 09:55:45 -0700 From: Christoph Hellwig To: David Howells Cc: netdev@vger.kernel.org, "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Willem de Bruijn , David Ahern , Matthew Wilcox , Al Viro , Christoph Hellwig , Jens Axboe , Jeff Layton , Christian Brauner , Chuck Lever III , Linus Torvalds , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Jeroen de Borst , Catherine Sullivan , Shailend Chand , Felix Fietkau , John Crispin , Sean Wang , Mark Lee , Lorenzo Bianconi , Matthias Brugger , AngeloGioacchino Del Regno , Keith Busch , Jens Axboe , Christoph Hellwig , Sagi Grimberg , Chaitanya Kulkarni , Andrew Morton , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-nvme@lists.infradead.org Subject: Re: [PATCH net-next v6 04/18] mm: Make the page_frag_cache allocator use per-cpu Message-ID: References: <20230411160902.4134381-1-dhowells@redhat.com> <20230411160902.4134381-5-dhowells@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230411160902.4134381-5-dhowells@redhat.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: CDCDE1A0002 X-Rspam-User: X-Stat-Signature: miw7k338bqse6tmbjgx3mwcggz3qpahb X-HE-Tag: 1681232172-731234 X-HE-Meta: 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 ElWcuEcd 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Apr 11, 2023 at 05:08:48PM +0100, David Howells wrote: > Make the NVMe, mediatek and GVE drivers pass in NULL to page_frag_cache() > and use the default allocation buckets rather than defining their own. Why makes these different from the other users?