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=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS 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 B6B4AC282DB for ; Mon, 21 Jan 2019 07:59:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 906E520823 for ; Mon, 21 Jan 2019 07:59:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729360AbfAUH7f (ORCPT ); Mon, 21 Jan 2019 02:59:35 -0500 Received: from mx1.redhat.com ([209.132.183.28]:48436 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729334AbfAUH7c (ORCPT ); Mon, 21 Jan 2019 02:59:32 -0500 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 67BF4806B4; Mon, 21 Jan 2019 07:59:32 +0000 (UTC) Received: from xz-x1.nay.redhat.com (dhcp-14-116.nay.redhat.com [10.66.14.116]) by smtp.corp.redhat.com (Postfix) with ESMTP id D79F6608F3; Mon, 21 Jan 2019 07:59:26 +0000 (UTC) From: Peter Xu To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Hugh Dickins , Maya Gokhale , Jerome Glisse , Johannes Weiner , peterx@redhat.com, Martin Cracauer , Denis Plotnikov , Shaohua Li , Andrea Arcangeli , Pavel Emelyanov , Mike Kravetz , Marty McFadden , Mike Rapoport , Mel Gorman , "Kirill A . Shutemov" , "Dr . David Alan Gilbert" Subject: [PATCH RFC 15/24] mm: export wp_page_copy() Date: Mon, 21 Jan 2019 15:57:13 +0800 Message-Id: <20190121075722.7945-16-peterx@redhat.com> In-Reply-To: <20190121075722.7945-1-peterx@redhat.com> References: <20190121075722.7945-1-peterx@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Mon, 21 Jan 2019 07:59:32 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Export this function for usages outside page fault handlers. Signed-off-by: Peter Xu --- include/linux/mm.h | 2 ++ mm/memory.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 89345b51d8bd..bf04e187fafe 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -378,6 +378,8 @@ struct vm_fault { */ }; +vm_fault_t wp_page_copy(struct vm_fault *vmf); + /* page entry size for vm->huge_fault() */ enum page_entry_size { PE_SIZE_PTE = 0, diff --git a/mm/memory.c b/mm/memory.c index 7f276158683b..ef823c07f635 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2239,7 +2239,7 @@ static inline void wp_page_reuse(struct vm_fault *vmf) * held to the old page, as well as updating the rmap. * - In any case, unlock the PTL and drop the reference we took to the old page. */ -static vm_fault_t wp_page_copy(struct vm_fault *vmf) +vm_fault_t wp_page_copy(struct vm_fault *vmf) { struct vm_area_struct *vma = vmf->vma; struct mm_struct *mm = vma->vm_mm; -- 2.17.1