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=-12.6 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,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 8D06FC433E1 for ; Mon, 24 Aug 2020 15:40:39 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3CEA720738 for ; Mon, 24 Aug 2020 15:40:39 +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="oOk8U/QD" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3CEA720738 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 D80EE6B0055; Mon, 24 Aug 2020 11:40:38 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D57826B005D; Mon, 24 Aug 2020 11:40:38 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C95806B0062; Mon, 24 Aug 2020 11:40:38 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0025.hostedemail.com [216.40.44.25]) by kanga.kvack.org (Postfix) with ESMTP id B59B96B0055 for ; Mon, 24 Aug 2020 11:40:38 -0400 (EDT) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 5587E348D for ; Mon, 24 Aug 2020 15:40:38 +0000 (UTC) X-FDA: 77185874556.21.stew72_060e8d627054 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin21.hostedemail.com (Postfix) with ESMTP id 3C730180442D4 for ; Mon, 24 Aug 2020 15:40:37 +0000 (UTC) X-HE-Tag: stew72_060e8d627054 X-Filterd-Recvd-Size: 2585 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf34.hostedemail.com (Postfix) with ESMTP for ; Mon, 24 Aug 2020 15:40:36 +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=Huo6sRbyJX9efH4aMnmRbcXQABN82YlWzJMQK7nzbq8=; b=oOk8U/QDtTn5eoOaAbpATFETeZ RO5j/88tOn7AiH6SAv7tSpzye6OMyYDvhOKVfTs9Rv04yGxu1zLhlxg2z5pBJDB3qNzoFAvQ2YZCK Xc2BwJyRybfzVEhAhLVarz3sEuywitv0peWEW7G2anq/cOFH0oDDER1Nwhy9zpVLuSlIadNEqpDtB YTeLFVX5FCN00qjYm83jsVT7jyxAXHkOE/DwswSNis1nLInBZBlg8B2N7vNAz+TnYKGhrjq5omxpv b6ZHaMFKe8uinPq6Hdn0gW65hyGzXYlGYw3YUbAnXVupRW3Sdgyln54DIVwUv42pL0M6WOyvXnQQ8 ZiFY94nQ==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kAEDZ-0004E1-RG; Mon, 24 Aug 2020 15:17:05 +0000 From: "Matthew Wilcox (Oracle)" To: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , "Darrick J . Wong" , linux-block@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 11/11] iomap: Handle tail pages in iomap_page_mkwrite Date: Mon, 24 Aug 2020 16:17:00 +0100 Message-Id: <20200824151700.16097-12-willy@infradead.org> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20200824151700.16097-1-willy@infradead.org> References: <20200824151700.16097-1-willy@infradead.org> MIME-Version: 1.0 X-Rspamd-Queue-Id: 3C730180442D4 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 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 ca2aa1995519..eb8202424665 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -1043,7 +1043,7 @@ 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