From patchwork Tue Jul 26 00:35:13 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: 9247351 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 D52EB6077C for ; Tue, 26 Jul 2016 00:42:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C548E1FF21 for ; Tue, 26 Jul 2016 00:42:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B9EE52787C; Tue, 26 Jul 2016 00:42:33 +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 6E67327AC2 for ; Tue, 26 Jul 2016 00:42:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756054AbcGZAh6 (ORCPT ); Mon, 25 Jul 2016 20:37:58 -0400 Received: from mga09.intel.com ([134.134.136.24]:61482 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755437AbcGZAgK (ORCPT ); Mon, 25 Jul 2016 20:36:10 -0400 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga102.jf.intel.com with ESMTP; 25 Jul 2016 17:35:57 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.28,421,1464678000"; d="scan'208";a="1002393716" Received: from black.fi.intel.com ([10.237.72.93]) by orsmga001.jf.intel.com with ESMTP; 25 Jul 2016 17:35:53 -0700 Received: by black.fi.intel.com (Postfix, from userid 1000) id 356E2699; Tue, 26 Jul 2016 03:35:47 +0300 (EEST) From: "Kirill A. Shutemov" To: "Theodore Ts'o" , Andreas Dilger , Jan Kara Cc: Alexander Viro , Hugh Dickins , Andrea Arcangeli , Andrew Morton , 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: [PATCHv1, RFC 11/33] thp: allow splitting non-shmem file-backed THPs Date: Tue, 26 Jul 2016 03:35:13 +0300 Message-Id: <1469493335-3622-12-git-send-email-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1469493335-3622-1-git-send-email-kirill.shutemov@linux.intel.com> References: <1469493335-3622-1-git-send-email-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 split_huge_page() is ready to handle file-backed huge pages, we only need to remove one guarding VM_BUG_ON_PAGE(). Signed-off-by: Kirill A. Shutemov --- mm/huge_memory.c | 1 - 1 file changed, 1 deletion(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index c1444a99a583..7f1271c38cb9 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2004,7 +2004,6 @@ int split_huge_page_to_list(struct page *page, struct list_head *list) VM_BUG_ON_PAGE(is_huge_zero_page(page), page); VM_BUG_ON_PAGE(!PageLocked(page), page); - VM_BUG_ON_PAGE(!PageSwapBacked(page), page); VM_BUG_ON_PAGE(!PageCompound(page), page); if (PageAnon(head)) {