From patchwork Tue Nov 1 22:36:15 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kara X-Patchwork-Id: 9408209 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 B3F3F60721 for ; Tue, 1 Nov 2016 22:37:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A3F2029AFF for ; Tue, 1 Nov 2016 22:37:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 98D4729B03; Tue, 1 Nov 2016 22:37:41 +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=-1.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 40C7729AFF for ; Tue, 1 Nov 2016 22:37:41 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id EE46881D49; Tue, 1 Nov 2016 15:37:34 -0700 (PDT) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 1CB1F81D3B for ; Tue, 1 Nov 2016 15:37:34 -0700 (PDT) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 35C84ACF2; Tue, 1 Nov 2016 22:37:34 +0000 (UTC) Received: by quack2.suse.cz (Postfix, from userid 1000) id 9A1E51E0F9F; Tue, 1 Nov 2016 23:37:27 +0100 (CET) From: Jan Kara To: Subject: [PATCH 06/20] mm: Use pass vm_fault structure for in wp_pfn_shared() Date: Tue, 1 Nov 2016 23:36:15 +0100 Message-Id: <1478039794-20253-10-git-send-email-jack@suse.cz> X-Mailer: git-send-email 2.6.6 In-Reply-To: <1478039794-20253-1-git-send-email-jack@suse.cz> References: <1478039794-20253-1-git-send-email-jack@suse.cz> X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-fsdevel@vger.kernel.org, Andrew Morton , Jan Kara , linux-nvdimm@lists.01.org MIME-Version: 1.0 Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP Instead of creating another vm_fault structure, use the one passed to wp_pfn_shared() for passing arguments into pfn_mkwrite handler. Signed-off-by: Jan Kara --- mm/memory.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index ba7760fb7db2..48de8187d7b2 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2273,16 +2273,11 @@ static int wp_pfn_shared(struct vm_fault *vmf, pte_t orig_pte) struct vm_area_struct *vma = vmf->vma; if (vma->vm_ops && vma->vm_ops->pfn_mkwrite) { - struct vm_fault vmf2 = { - .page = NULL, - .pgoff = vmf->pgoff, - .virtual_address = vmf->address & PAGE_MASK, - .flags = FAULT_FLAG_WRITE | FAULT_FLAG_MKWRITE, - }; int ret; pte_unmap_unlock(vmf->pte, vmf->ptl); - ret = vma->vm_ops->pfn_mkwrite(vma, &vmf2); + vmf->flags |= FAULT_FLAG_MKWRITE; + ret = vma->vm_ops->pfn_mkwrite(vma, vmf); if (ret & VM_FAULT_ERROR) return ret; vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd,