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=-12.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=unavailable 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 7B5A3C432BE for ; Thu, 12 Aug 2021 17:29:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 640A16108C for ; Thu, 12 Aug 2021 17:29:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235885AbhHLRaR (ORCPT ); Thu, 12 Aug 2021 13:30:17 -0400 Received: from smtp-out2.suse.de ([195.135.220.29]:33248 "EHLO smtp-out2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235790AbhHLRaO (ORCPT ); Thu, 12 Aug 2021 13:30:14 -0400 Received: from imap1.suse-dmz.suse.de (imap1.suse-dmz.suse.de [192.168.254.73]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 0F8681FF4A; Thu, 12 Aug 2021 17:29:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1628789376; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=k10WcGFA/pe29Ss1b7yju5dG1lUVgc+nusj2i462Y2Q=; b=n1acCdxOoHi/hOwK/FykVs8kCYy4loFdbSNHTNSI47OYeD1r4l9uIeeqHU+f7nwKDl1Jcd A7FdHaQFu4HL5TFqL6kI8ATmLt5aequNNZzxQmtF+2sK/7EFC4/NZsPGl2T3YdVp5mB2rA W0CdOgvtOtpoQqSGAUvb7h/vtP70qjk= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1628789376; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=k10WcGFA/pe29Ss1b7yju5dG1lUVgc+nusj2i462Y2Q=; b=DfHYBGA6jYTl8vF22h8vhgPGSQtgykjP3r+OzQ7HOpLR0ylNtntmuCrIPCSxx2ocxad2Y0 drKiuNAfJ4FFpGBQ== Received: from imap1.suse-dmz.suse.de (imap1.suse-dmz.suse.de [192.168.254.73]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap1.suse-dmz.suse.de (Postfix) with ESMTPS id E622313AC3; Thu, 12 Aug 2021 17:29:35 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap1.suse-dmz.suse.de with ESMTPSA id bcjkNn9aFWE3EAAAGKfGzw (envelope-from ); Thu, 12 Aug 2021 17:29:35 +0000 Subject: Re: [PATCH v14 085/138] mm/filemap: Add filemap_alloc_folio To: "Matthew Wilcox (Oracle)" , linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig References: <20210715033704.692967-1-willy@infradead.org> <20210715033704.692967-86-willy@infradead.org> From: Vlastimil Babka Message-ID: <6191eee3-5c2b-f866-7943-1c0867b1d068@suse.cz> Date: Thu, 12 Aug 2021 19:29:35 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: <20210715033704.692967-86-willy@infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7/15/21 5:36 AM, Matthew Wilcox (Oracle) wrote: > Reimplement __page_cache_alloc as a wrapper around filemap_alloc_folio > to allow filesystems to be converted at our leisure. Increases > kernel text size by 133 bytes, mostly in cachefiles_read_backing_file(). > pagecache_get_page() shrinks by 32 bytes, though. > > Signed-off-by: Matthew Wilcox (Oracle) > Reviewed-by: Christoph Hellwig Acked-by: Vlastimil Babka