From patchwork Mon Apr 17 12:36:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pankaj Raghav X-Patchwork-Id: 84215 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp2103423vqo; Mon, 17 Apr 2023 05:58:25 -0700 (PDT) X-Google-Smtp-Source: AKy350aWv4kkTyPw3SUelcDFbdzhCSWc2a58Hmmh8BbIDxbN2cSbaxMjrUFTFVn+wGJQ8mE/kYwY X-Received: by 2002:a05:6a20:3423:b0:e7:56ad:5a40 with SMTP id i35-20020a056a20342300b000e756ad5a40mr13448536pzd.36.1681736305462; Mon, 17 Apr 2023 05:58:25 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1681736305; cv=none; d=google.com; s=arc-20160816; b=FgJwa0++Hva990ALE+raVPv5v3hG47HVS+rQcr1zkrVPBFXd1BsKOr3SCeHNC3Udxl bxij4YhEHe9wIBieq5/swYRiblle0yMJUkg7vQDdVu6Yer50zOnGBXCTsuTd/rk2yt1T RUINCjXOnU+ZZbK+xlTOgKMvBTeLM8ouVSAwJwDBDhDVdDkr7msQvKvbJSEQ+ZyPqnNu BrnwfFybo/KhspDCwEZx2Evv0ws2DHR+dyFWIgkjk1bSgAjVfT/YvIu8Hi5mEknC/Mfm LBGMLnBE7RLF5c2oiiIWPaNj6Y+jB1ofZ9/e0+R9qClYFf9UnXKrH2OESL/XHaL9i2E6 H5tw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:references:cms-type:content-transfer-encoding :mime-version:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature:dkim-filter; bh=ToDE43tRnz0p+L+A0Gpl2BjRfNRIfbZq1R5380heax8=; b=pJxoZsORsy4JC6R0uOJMWMAO4nOo60UaKKIuGtlGaJQ7EEeJsCCLt3HSRv5NffbQFB X2yEHv5+6Y9Fo4L1suiZVXOZ4SvR6U2iLM9szPv68SqC36xA3VsoTnn8zVncT3H1futt /RFA/u9oKFT+4XumpODsn/bmFW1m8H5JWmV6hL5oL6QVrJ1m+TLhUBE/1r0qBpbW95ox EhE+vUl3W+2oo1Juwui8mzKLOvCD+SSuyknoHhKsVzCouyHliXYcrp1vKPOVvnJOu/ej 8p6QpGwS4INEaeZPDpgRDytl0LL/QEhYd8lhuiXESxHgfg4nCpHS8MhGzWphLQ29pmCM 49ug== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@samsung.com header.s=mail20170921 header.b=kiT0q720; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=samsung.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id k189-20020a6384c6000000b0051b2dfa3e3dsi12663422pgd.738.2023.04.17.05.58.06; Mon, 17 Apr 2023 05:58:25 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@samsung.com header.s=mail20170921 header.b=kiT0q720; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=samsung.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229682AbjDQMgd (ORCPT + 99 others); Mon, 17 Apr 2023 08:36:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56570 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229483AbjDQMg1 (ORCPT ); Mon, 17 Apr 2023 08:36:27 -0400 Received: from mailout1.w1.samsung.com (mailout1.w1.samsung.com [210.118.77.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3F97D121 for ; Mon, 17 Apr 2023 05:36:24 -0700 (PDT) Received: from eucas1p2.samsung.com (unknown [182.198.249.207]) by mailout1.w1.samsung.com (KnoxPortal) with ESMTP id 20230417123621euoutp011ab9098571986831c86447ecd212769b~WuQ5NZkfP3118831188euoutp01S for ; Mon, 17 Apr 2023 12:36:21 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout1.w1.samsung.com 20230417123621euoutp011ab9098571986831c86447ecd212769b~WuQ5NZkfP3118831188euoutp01S DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1681734981; bh=ToDE43tRnz0p+L+A0Gpl2BjRfNRIfbZq1R5380heax8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kiT0q720f7N78z3fYHrOCC6zwrEGXRce+WcTWuSF5XrnEW5exXzM0HxujixhWqwS1 Dvrc1EBWVj9dFinkyUld+fNc7kZOhVSmgvkgW3LM98qS5gUbeVgw08dWFN5Hkq0EPc gRmTZg+yvemfZaHiWMeT/DtEGfjVuzAckaGNpfAw= Received: from eusmges1new.samsung.com (unknown [203.254.199.242]) by eucas1p2.samsung.com (KnoxPortal) with ESMTP id 20230417123621eucas1p2a869a48f275fbd8a8a171ab8a1f4290c~WuQ4fpo5Z0719007190eucas1p24; Mon, 17 Apr 2023 12:36:21 +0000 (GMT) Received: from eucas1p2.samsung.com ( [182.198.249.207]) by eusmges1new.samsung.com (EUCPMTA) with SMTP id 56.2D.09503.54D3D346; Mon, 17 Apr 2023 13:36:21 +0100 (BST) Received: from eusmtrp1.samsung.com (unknown [182.198.249.138]) by eucas1p2.samsung.com (KnoxPortal) with ESMTPA id 20230417123620eucas1p266aa61d2213f94bbe028a98be73b70fc~WuQ4MOQPw0505405054eucas1p2n; Mon, 17 Apr 2023 12:36:20 +0000 (GMT) Received: from eusmgms2.samsung.com (unknown [182.198.249.180]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20230417123620eusmtrp1b947be1384c5f0806db168e9ae7fa1c8~WuQ4LqdSR2401824018eusmtrp1z; Mon, 17 Apr 2023 12:36:20 +0000 (GMT) X-AuditID: cbfec7f2-e8fff7000000251f-40-643d3d458b9b Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 6D.38.34412.44D3D346; Mon, 17 Apr 2023 13:36:20 +0100 (BST) Received: from localhost (unknown [106.210.248.243]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20230417123620eusmtip1b098fac03c10a0314c030e184a2a48be~WuQ39Emx92069820698eusmtip1T; Mon, 17 Apr 2023 12:36:20 +0000 (GMT) From: Pankaj Raghav To: viro@zeniv.linux.org.uk, brauner@kernel.org, willy@infradead.org, akpm@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, mcgrof@kernel.org, linux-kernel@vger.kernel.org, hare@suse.de, gost.dev@samsung.com, Pankaj Raghav Subject: [PATCH 1/4] fs/buffer: add folio_set_bh helper Date: Mon, 17 Apr 2023 14:36:15 +0200 Message-Id: <20230417123618.22094-2-p.raghav@samsung.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230417123618.22094-1-p.raghav@samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrKKsWRmVeSWpSXmKPExsWy7djP87qutrYpBitWcFjMWb+GzeL14U+M FjcP7GSy2LNoEpDYe5LF4vKuOWwWNyY8ZbT4vLSF3eL83+OsFr9/zGFz4PLYvELLY9OqTjaP EzN+s3j0bVnF6LH5dLXH501yHpuevGUKYI/isklJzcksSy3St0vgyph/fy5rwR+eivPf+RoY b3F1MXJySAiYSDR8fcPYxcjFISSwglHi96U2FgjnC6PEnIdr2CCcz4wSJ+9+YYRrOXGMFcQW EljOKLFyTiBE0UtGiWX3W4ESHBxsAloSjZ3sIDUiAokSi/d0g61gFljAKPHkzxpmkISwgLnE t+5XYEUsAqoSM38tZAKxeQUsJSZ9mcAEsUxeYv/Bs2D1nAJWEis29zBD1AhKnJz5hAXEZgaq ad46mxlkgYTAHQ6Jx/sOsoMcISHgIvFwpwXEHGGJV8e3sEPYMhKnJ/ewQNjVEk9v/IbqbWGU 6N+5ng2i11qi70wOiMksoCmxfpc+RLmjROvsSVAVfBI33gpCXMAnMWnbdGaIMK9ER5sQRLWS xM6fT6CWSkhcbpoDtdRD4tP2BpYJjIqzkPwyC8kvsxD2LmBkXsUonlpanJueWmyYl1quV5yY W1yal66XnJ+7iRGYkk7/O/5pB+PcVx/1DjEycTAeYpTgYFYS4T3japUixJuSWFmVWpQfX1Sa k1p8iFGag0VJnFfb9mSykEB6YklqdmpqQWoRTJaJg1OqgSk3Zp1MZJ97xNWb8q9fqL/eXnJI 6q6sg2SEyzFul1miTL9FzZ5d27n0QPOvwpu/g/4ctdh98OH5BOb3gZLuT2f+qLPT7RVdee1c tOPhk/UXIp7ezZv37+49x/NPVnAJvdJJvXjvzY5Oha7q+FM5Sx2+Lvno//GLX6fu2cMsZ/fu drslVKFmaaMoyBjy1nWW08SG1qPdnHK27ZeNZgb5fZkj0Wt76PTMm5WJstftJ2qI583UO3pW a5PBxSthNV1bOJIM2683L3WYadwdsJfx3iuTCH6+iX36U24XZfLu04xOybZ/JJLVsn/xsvKU DbqMrhN4uMPq/7zJs2eYqpYTPv0xi+/5sMKD1fdObbvczqvEUpyRaKjFXFScCADwXS6fuAMA AA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprKIsWRmVeSWpSXmKPExsVy+t/xu7outrYpBq9f6VjMWb+GzeL14U+M FjcP7GSy2LNoEpDYe5LF4vKuOWwWNyY8ZbT4vLSF3eL83+OsFr9/zGFz4PLYvELLY9OqTjaP EzN+s3j0bVnF6LH5dLXH501yHpuevGUKYI/SsynKLy1JVcjILy6xVYo2tDDSM7S00DMysdQz NDaPtTIyVdK3s0lJzcksSy3St0vQy5h/fy5rwR+eivPf+RoYb3F1MXJySAiYSDScOMYKYgsJ LGWUeLJMDyIuIXF7YRMjhC0s8edaF1sXIxdQzXNGicmz5zJ1MXJwsAloSTR2soPUiAikSqz4 cweshllgGaPE4e93mUESwgLmEt+6X4EVsQioSsz8tZAJxOYVsJSY9GUCE8QCeYn9B8+C1XMK WEms2NzDDHGQpcT9S9uYIeoFJU7OfMICYjMD1Tdvnc08gVFgFpLULCSpBYxMqxhFUkuLc9Nz i430ihNzi0vz0vWS83M3MQLjZ9uxn1t2MK589VHvECMTB+MhRgkOZiUR3jOuVilCvCmJlVWp RfnxRaU5qcWHGE2B7p7ILCWanA+M4LySeEMzA1NDEzNLA1NLM2MlcV7Pgo5EIYH0xJLU7NTU gtQimD4mDk6pBqb2oPRfH1xeHc1qb/t55b7PrIT1MlGtyaX+972y2Z8uT/s0Sf8vz88ZQl76 x6pk/XSuLeE6r9IntuvPzTs2OcfPp82ySU9vV5MKMJI/21tcdn2t5BfzrK0dFn7XT2te8H8X p3LtmvgzbvkT28XDDb2/8qlIPVb8XflQ+5iG2Yzul7518XEecZ+Pbv11Qyhiy/TCc38fibY1 KHiz3InvdbMInrb5/ZqZOclhPUYePM/3bOgNObuGi1tow0J92xlvLVhO2T886fXTfMee5Gl3 76mv5Ii8uf6HP+dbN9s40xBDn3zvSUJphyNzZy8NitysPUt5afuXWdsWTr7wm8c6V2r3hNWp IffbJv/1t9r+ersSS3FGoqEWc1FxIgD2gHHgKAMAAA== X-CMS-MailID: 20230417123620eucas1p266aa61d2213f94bbe028a98be73b70fc X-Msg-Generator: CA X-RootMTR: 20230417123620eucas1p266aa61d2213f94bbe028a98be73b70fc X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230417123620eucas1p266aa61d2213f94bbe028a98be73b70fc References: <20230417123618.22094-1-p.raghav@samsung.com> X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1763428328245281399?= X-GMAIL-MSGID: =?utf-8?q?1763428328245281399?= The folio version of set_bh_page(). This is required to convert create_page_buffers() to folio_create_buffers() later in the series. Signed-off-by: Pankaj Raghav Reviewed-by: Matthew Wilcox (Oracle) Reviewed-by: Hannes Reinecke --- fs/buffer.c | 15 +++++++++++++++ include/linux/buffer_head.h | 2 ++ 2 files changed, 17 insertions(+) diff --git a/fs/buffer.c b/fs/buffer.c index b3eb905f87d6..7e74bd77a81b 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -1484,6 +1484,21 @@ void set_bh_page(struct buffer_head *bh, } EXPORT_SYMBOL(set_bh_page); +void folio_set_bh(struct buffer_head *bh, struct folio *folio, + unsigned long offset) +{ + bh->b_folio = folio; + BUG_ON(offset >= folio_size(folio)); + if (folio_test_highmem(folio)) + /* + * This catches illegal uses and preserves the offset: + */ + bh->b_data = (char *)(0 + offset); + else + bh->b_data = folio_address(folio) + offset; +} +EXPORT_SYMBOL(folio_set_bh); + /* * Called when truncating a buffer on a page completely. */ diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index 8f14dca5fed7..7e92d23f4782 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -196,6 +196,8 @@ void mark_buffer_write_io_error(struct buffer_head *bh); void touch_buffer(struct buffer_head *bh); void set_bh_page(struct buffer_head *bh, struct page *page, unsigned long offset); +void folio_set_bh(struct buffer_head *bh, struct folio *folio, + unsigned long offset); bool try_to_free_buffers(struct folio *); struct buffer_head *alloc_page_buffers(struct page *page, unsigned long size, bool retry);