From patchwork Tue Nov 29 11:22:38 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kirill A . Shutemov" X-Patchwork-Id: 9451539 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 7FD3360710 for ; Tue, 29 Nov 2016 11:25:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 626A728113 for ; Tue, 29 Nov 2016 11:25:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 559E4281D2; Tue, 29 Nov 2016 11:25:47 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 09AEF28113 for ; Tue, 29 Nov 2016 11:25:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932940AbcK2LZn (ORCPT ); Tue, 29 Nov 2016 06:25:43 -0500 Received: from mga02.intel.com ([134.134.136.20]:4965 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757320AbcK2LYD (ORCPT ); Tue, 29 Nov 2016 06:24:03 -0500 Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga101.jf.intel.com with ESMTP; 29 Nov 2016 03:23:56 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,568,1473145200"; d="scan'208";a="196909780" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga004.fm.intel.com with ESMTP; 29 Nov 2016 03:23:52 -0800 Received: by black.fi.intel.com (Postfix, from userid 1000) id 63D7F7A5; Tue, 29 Nov 2016 13:23:12 +0200 (EET) From: "Kirill A. Shutemov" To: "Theodore Ts'o" , Andreas Dilger , Jan Kara , Andrew Morton Cc: Alexander Viro , Hugh Dickins , Andrea Arcangeli , Dave Hansen , Vlastimil Babka , Matthew Wilcox , Ross Zwisler , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-block@vger.kernel.org, "Kirill A. Shutemov" Subject: [PATCHv5 10/36] filemap: handle huge pages in filemap_fdatawait_range() Date: Tue, 29 Nov 2016 14:22:38 +0300 Message-Id: <20161129112304.90056-11-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.10.2 In-Reply-To: <20161129112304.90056-1-kirill.shutemov@linux.intel.com> References: <20161129112304.90056-1-kirill.shutemov@linux.intel.com> Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP We writeback whole huge page a time. Signed-off-by: Kirill A. Shutemov --- mm/filemap.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/mm/filemap.c b/mm/filemap.c index ec976ddcb88a..52be2b457208 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -405,9 +405,14 @@ static int __filemap_fdatawait_range(struct address_space *mapping, if (page->index > end) continue; + page = compound_head(page); wait_on_page_writeback(page); if (TestClearPageError(page)) ret = -EIO; + if (PageTransHuge(page)) { + index = page->index + HPAGE_PMD_NR; + i += index - pvec.pages[i]->index - 1; + } } pagevec_release(&pvec); cond_resched();