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=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 6AE39C433DF for ; Wed, 14 Oct 2020 03:04:30 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id EBCEC2222F for ; Wed, 14 Oct 2020 03:04:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Hqnk7nD/" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EBCEC2222F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id B66BE940009; Tue, 13 Oct 2020 23:04:06 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id ACC3C94000B; Tue, 13 Oct 2020 23:04:06 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9207D940009; Tue, 13 Oct 2020 23:04:06 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0129.hostedemail.com [216.40.44.129]) by kanga.kvack.org (Postfix) with ESMTP id 555CE94000B for ; Tue, 13 Oct 2020 23:04:06 -0400 (EDT) Received: from smtpin22.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id E77EF1EF1 for ; Wed, 14 Oct 2020 03:04:05 +0000 (UTC) X-FDA: 77369036850.22.sugar30_12111df27208 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin22.hostedemail.com (Postfix) with ESMTP id C316018038E67 for ; Wed, 14 Oct 2020 03:04:05 +0000 (UTC) X-HE-Tag: sugar30_12111df27208 X-Filterd-Recvd-Size: 2474 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf19.hostedemail.com (Postfix) with ESMTP for ; Wed, 14 Oct 2020 03:04:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=sU/fZV47iwWzgioCKRXJ5YfzflXRPUbnphxuAtGKKLU=; b=Hqnk7nD/NpsmPqpAxpI/NTmhdZ okkum/QWQxjmat6HRVOilaBBz+DBF43Mm3+Mz99+kL3C9NzzVr5YwWzl8ld9twDHVYXd6fWOefBsD 9t4NoSgsIW09ZHFMrlNbPP2beVE04RB/2P4201oEzGtwFCN0XHIv5MknHziksLxJto/R6dYXAINtD nA+eVJLMJUJ4pIjfUPjz2EIyojC4B8lHtiCkQ1PZjfT1zVpF5qSipBBCNgBbqcr7MIM6wbLK8uTt4 CPGIuBXGY1YND6XlfNGzBjluBLCwrDJvG5l+YrE5n0Dih0YXWdFErsc/Kkr4uPZ1prbmRIrJA3l0+ kjGk8B7g==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kSX58-0005jV-Ht; Wed, 14 Oct 2020 03:04:02 +0000 From: "Matthew Wilcox (Oracle)" To: linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org Subject: [PATCH 13/14] iomap: Handle tail pages in iomap_page_mkwrite Date: Wed, 14 Oct 2020 04:03:56 +0100 Message-Id: <20201014030357.21898-14-willy@infradead.org> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20201014030357.21898-1-willy@infradead.org> References: <20201014030357.21898-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: iomap_page_mkwrite() can be called with a tail page. If we are, operate on the head page, since we're treating the entire thing as a single unit and the whole page is dirtied at the same time. Signed-off-by: Matthew Wilcox (Oracle) --- fs/iomap/buffered-io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 38b6b75e7639..c2540c85f629 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -1098,7 +1098,7 @@ iomap_page_mkwrite_actor(struct inode *inode, loff_= t pos, loff_t length, =20 vm_fault_t iomap_page_mkwrite(struct vm_fault *vmf, const struct iomap_o= ps *ops) { - struct page *page =3D vmf->page; + struct page *page =3D thp_head(vmf->page); struct inode *inode =3D file_inode(vmf->vma->vm_file); unsigned long length; loff_t offset; --=20 2.28.0