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[23.128.96.38]) by mx.google.com with ESMTPS id r29-20020a63205d000000b005b8817e562dsi4045590pgm.92.2023.10.29.13.43.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 29 Oct 2023 13:43:42 -0700 (PDT) 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=@infradead.org header.s=casper.20170209 header.b="eV0FtAq/"; 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 Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by fry.vger.email (Postfix) with ESMTP id 6033780874F7; Sun, 29 Oct 2023 13:43:40 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at fry.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230145AbjJ2UnZ (ORCPT + 99 others); Sun, 29 Oct 2023 16:43:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56266 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229512AbjJ2UnX (ORCPT ); Sun, 29 Oct 2023 16:43:23 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D17AB6; Sun, 29 Oct 2023 13:43:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; 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=7IIpjoWOpsvtx4X/Q+GqaCU4Rq449hxXA8ErAipodcg=; b=eV0FtAq/bYAwmv32+sCx0b0Qiu Ay6BIxPf1z5E6idphu0sY1nuio8giUHa3H/opfGCvsLGJOsj/gvJ+nA0kqZRgNHcZDi92icJd3GsY cClHrXRHbCZ7+DIhdWp3b7yoqkhZBCe+TylofpysGKeSrvd4WK0P9b5L9al9cqCcJqX17XKjUqNKV 52FT5IBxDzd04eCedUpFV52D/7H16J3ygHTQ+y1hCiQgEIRUwvz1KvLVAdd6nwvE3aadKpIp9l8B8 9gHZIoBlcOAkWyj+Je+d85H9WRmgJMGCShEOXnV+inmRLdLQOcy8MGO1m633fBIMEnzxr9seyButt XwBEDBFA==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1qxCcr-00Hb5n-SL; Sun, 29 Oct 2023 20:43:13 +0000 Date: Sun, 29 Oct 2023 20:43:13 +0000 From: Matthew Wilcox To: Daniel Gomez Cc: "minchan@kernel.org" , "senozhatsky@chromium.org" , "axboe@kernel.dk" , "djwong@kernel.org" , "hughd@google.com" , "akpm@linux-foundation.org" , "mcgrof@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-block@vger.kernel.org" , "linux-xfs@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" , "gost.dev@samsung.com" , Pankaj Raghav Subject: Re: [RFC PATCH 00/11] shmem: high order folios support in write path Message-ID: References: <20230919135536.2165715-1-da.gomez@samsung.com> <20231028211518.3424020-1-da.gomez@samsung.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231028211518.3424020-1-da.gomez@samsung.com> X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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]); Sun, 29 Oct 2023 13:43:40 -0700 (PDT) On Sat, Oct 28, 2023 at 09:15:34PM +0000, Daniel Gomez wrote: > This series try to add support for high order folios in shmem write and > fallocate paths when swap is disabled (noswap option). This is part of the > Large Block Size (LBS) effort [1][2] and a continuation of the shmem work from > Luis here [3] following Matthew Wilcox's suggestion [4] regarding the path to > take for the folio allocation order calculation. I don't see how this is part of the LBS effort. shmem doesn't use a block device. swap might, but that's a separate problem, as you've pointed out.