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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 3E548C43381 for ; Sun, 7 Feb 2021 19:07:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1288064E3E for ; Sun, 7 Feb 2021 19:07:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229725AbhBGTGy (ORCPT ); Sun, 7 Feb 2021 14:06:54 -0500 Received: from esa5.hgst.iphmx.com ([216.71.153.144]:37278 "EHLO esa5.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229537AbhBGTGt (ORCPT ); Sun, 7 Feb 2021 14:06:49 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1612724809; x=1644260809; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=rNdz9k9ffw5LAUxhwO57X4gVRFYzjraWgYm8UMbARD0=; b=Qxk2wI7NgxZvhytLnF4rBHG+AjGMM3a16j+keLAmErcADUE3z7Ia2yPW pjVaEwTgtkej1IegbdrxZnisuf17zSjrIeFbeMMeuiM7Yd+m2hV0tnjAu AqzBm0Rn+l9JIINunamAg5/nyLAUM7++4WSRDTaGVGp8aeXUBJHNSuPme ew6hi7fMGjN+BQsF6kFUav8zoPgL/kdoPdHOZbsPMd5G6Ut1kIHUbyBmd 8nvBYhXMy70aou1c5S9xqYs+TV9vfmblRsUVtMg1sg4wR+jmX/NeOuq35 whrvOte32p//rV0x0bVUyZFNEjjh/R4J2imOe5acmBii4YY7POCW9EKMZ Q==; IronPort-SDR: dJxVxxCAkdcZUfi0xKPrUBXmmWM1JW4feusKWlrGNz2SdDpymbeTXjUegXj66zGXVmFEy9lMok WV5FsbexIqIUCGCOUhCVxATQ7DhrXhwOYacceIAo/HVO8/uXuD1NkKXIBvXQ3hB+u9k8OC6t+v phWvndStwEtCb7JERnQHIivHrLhJhcwhr5WaoyKF3HpWREWYn7mjI2W074AQI06xFNkI8xUeru UUecdrVBmgZsLGrTgrLbLqaFaYBsbwaMGwRZcR3oWr4uyHp7M4k10CfawiY3eFVu9qZjoz7XtG z8M= X-IronPort-AV: E=Sophos;i="5.81,160,1610380800"; d="scan'208";a="159399773" Received: from h199-255-45-14.hgst.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 08 Feb 2021 03:05:41 +0800 IronPort-SDR: h1t2WzGezVJR93Oxz5zJ0b7hqTneFgSxaJ/j8C00m4kVnto8z5Gfdfd/0LfVDMWeyUN20gWd0B 3rG5a8hs9oUuBa2ZeP9tizi95rTx9fi2xQqgDVrD3ubaF0fuWPhiV7AwSMtf5N76sRhhdQIuoG T8d8TydhcsoneAZZNFOmff1GJCWDKNEVtwLxLOlUngKVI4BPiqT/xgwoaLCqtqxCU4MK/54iGI 4UZ+ilxumN3hJpoXWApwZNBk1hlUUU4IP1sBvlphAVvRUZ1YWDOKOvXDjUjSOKQ3dKd4M9ZRoj kFYNsQ8fPqwv97nSgPMW+IbE Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Feb 2021 10:49:35 -0800 IronPort-SDR: Mqq4oD3AeYBOMQHpGBqpa7pFTs3cc0c1FqPIJAN7pudJdrjE1cjRu0dCs025PGzN1w2mJSwrI8 aLMozTCLuRjHR3U2Ava6HaEOdzuNs6BKCjySlUFnlbnsz2mfLlHcpwKmSdmyHd92gceMCoHjff SrgH+/UBPE/azNd55IrtFOrGh9hfZBqgwHFD1ONIv1Su/ou3XzTuek77zBP92E3JHf9gMZ3g5V C8UdjLamPyOsH/7UOibmR6FxstwDhtHmvtbREVOVNEGrv3OlsgYYoV5l9pJ5DScQGhniarovqX 2lg= WDCIronportException: Internal Received: from vm.labspan.wdc.com (HELO vm.sc.wdc.com) ([10.6.137.102]) by uls-op-cesaip02.wdc.com with ESMTP; 07 Feb 2021 11:05:42 -0800 From: Chaitanya Kulkarni To: linux-block@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org Cc: axboe@kernel.dk, tytso@mit.edu, adilger.kernel@dilger.ca, jaegeuk@kernel.org, chao@kernel.org, johannes.thumshirn@wdc.com, damien.lemoal@wdc.com, bvanassche@acm.org, chaitanya.kulkarni@wdc.com, dongli.zhang@oracle.com, clm@fb.com, ira.weiny@intel.com, dsterba@suse.com, ebiggers@kernel.org, hch@infradead.org, dave.hansen@intel.com Subject: [RFC PATCH 5/8] ext4: use memcpy_from_page() in pagecache_read() Date: Sun, 7 Feb 2021 11:04:22 -0800 Message-Id: <20210207190425.38107-6-chaitanya.kulkarni@wdc.com> X-Mailer: git-send-email 2.22.1 In-Reply-To: <20210207190425.38107-1-chaitanya.kulkarni@wdc.com> References: <20210207190425.38107-1-chaitanya.kulkarni@wdc.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Signed-off-by: Chaitanya Kulkarni --- fs/ext4/verity.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/fs/ext4/verity.c b/fs/ext4/verity.c index 5b7ba8f71153..c8e07f8a792d 100644 --- a/fs/ext4/verity.c +++ b/fs/ext4/verity.c @@ -45,16 +45,13 @@ static int pagecache_read(struct inode *inode, void *buf, size_t count, size_t n = min_t(size_t, count, PAGE_SIZE - offset_in_page(pos)); struct page *page; - void *addr; page = read_mapping_page(inode->i_mapping, pos >> PAGE_SHIFT, NULL); if (IS_ERR(page)) return PTR_ERR(page); - addr = kmap_atomic(page); - memcpy(buf, addr + offset_in_page(pos), n); - kunmap_atomic(addr); + memcpy_from_page(buf, page, offset_in_page(pos), n); put_page(page); -- 2.22.1