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 65EA0C4321E for ; Fri, 2 Dec 2022 20:12:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234549AbiLBUMM (ORCPT ); Fri, 2 Dec 2022 15:12:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45726 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234846AbiLBULl (ORCPT ); Fri, 2 Dec 2022 15:11:41 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ADE55F1CE1 for ; Fri, 2 Dec 2022 12:11:40 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4DEC3622CB for ; Fri, 2 Dec 2022 20:11:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A708EC433C1; Fri, 2 Dec 2022 20:11:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1670011899; bh=+j+Utw7RmagrbZphIlQ+dsfgCuVJEEFFK9ogvgnyG2c=; h=Date:To:From:Subject:From; b=AZZBnHdAuFjeTNoUnjPKmPUEj+jI9eng1npcbWR+aWuF487ii/KP/3iIWhWSgw+ka XHgIw9vEj+S+1rq7LQcxo3uowniqjnAlegGMYs43BuoZaSLDZb83ldpupFf0dgdN2y W3dg6f1qL7jozyKz8LyhUKZ9ZFRiJz0wTVtJ5XkU= Date: Fri, 02 Dec 2022 12:11:38 -0800 To: mm-commits@vger.kernel.org, sj1557.seo@samsung.com, shaggy@kernel.org, mikulas@artax.karlin.mff.cuni.cz, me@bobcopeland.com, linkinjeon@kernel.org, jack@suse.com, hirofumi@mail.parknet.co.jp, hannes@cmpxchg.org, hch@lst.de, akpm@linux-foundation.org From: Andrew Morton Subject: + extfat-remove-writepage.patch added to mm-unstable branch Message-Id: <20221202201139.A708EC433C1@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: extfat: remove ->writepage has been added to the -mm mm-unstable branch. Its filename is extfat-remove-writepage.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/extfat-remove-writepage.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Christoph Hellwig Subject: extfat: remove ->writepage Date: Fri, 2 Dec 2022 11:26:38 +0100 Patch series "start removing writepage instances v2". The VM doesn't need or want ->writepage for writeback and is fine with just having ->writepages as long as ->migrate_folio is implemented. This series removes all ->writepage instances that use block_write_full_page directly and also have a plain mpage_writepages based ->writepages. This patch (of 7): ->writepage is a very inefficient method to write back data, and only used through write_cache_pages or a a fallback when no ->migrate_folio method is present. Set ->migrate_folio to the generic buffer_head based helper, and remove the ->writepage implementation. Link: https://lkml.kernel.org/r/20221202102644.770505-1-hch@lst.de Link: https://lkml.kernel.org/r/20221202102644.770505-2-hch@lst.de Signed-off-by: Christoph Hellwig Acked-by: Namjae Jeon Acked-by: Johannes Weiner Cc: Bob Copeland Cc: Dave Kleikamp Cc: Jan Kara Cc: Mikulas Patocka Cc: OGAWA Hirofumi Cc: Sungjong Seo Signed-off-by: Andrew Morton --- fs/exfat/inode.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) --- a/fs/exfat/inode.c~extfat-remove-writepage +++ a/fs/exfat/inode.c @@ -345,11 +345,6 @@ static void exfat_readahead(struct reada mpage_readahead(rac, exfat_get_block); } -static int exfat_writepage(struct page *page, struct writeback_control *wbc) -{ - return block_write_full_page(page, exfat_get_block, wbc); -} - static int exfat_writepages(struct address_space *mapping, struct writeback_control *wbc) { @@ -473,12 +468,12 @@ static const struct address_space_operat .invalidate_folio = block_invalidate_folio, .read_folio = exfat_read_folio, .readahead = exfat_readahead, - .writepage = exfat_writepage, .writepages = exfat_writepages, .write_begin = exfat_write_begin, .write_end = exfat_write_end, .direct_IO = exfat_direct_IO, - .bmap = exfat_aop_bmap + .bmap = exfat_aop_bmap, + .migrate_folio = buffer_migrate_folio, }; static inline unsigned long exfat_hash(loff_t i_pos) _ Patches currently in -mm which might be from hch@lst.de are extfat-remove-writepage.patch fat-remove-writepage.patch hfs-remove-writepage.patch hfsplus-remove-writepage.patch hpfs-remove-writepage.patch jfs-remove-writepage.patch omfs-remove-writepage.patch