Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934508Ab3DOMv6 (ORCPT ); Mon, 15 Apr 2013 08:51:58 -0400 Received: from szxga01-in.huawei.com ([119.145.14.64]:31293 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934133Ab3DOMvs (ORCPT ); Mon, 15 Apr 2013 08:51:48 -0400 From: Libin To: Arnd Bergmann , Greg Kroah-Hartman , David Airlie , Bjorn Helgaas , "Hans J. Koch" , Petr Vandrovec , Andrew Morton CC: Konstantin Khlebnikov , Thomas Hellstrom , Dave Airlie , Nadia Yvette Chambers , Jiri Kosina , Al Viro , Mel Gorman , Hugh Dickins , Rik van Riel , David Rientjes , Michel Lespinasse , , , , , , Subject: [PATCH 4/6] char: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT Date: Mon, 15 Apr 2013 20:48:56 +0800 Message-ID: <1366030138-71292-4-git-send-email-huawei.libin@huawei.com> X-Mailer: git-send-email 1.8.1.msysgit.1 In-Reply-To: <1366030138-71292-1-git-send-email-huawei.libin@huawei.com> References: <1366030138-71292-1-git-send-email-huawei.libin@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.135.74.57] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 964 Lines: 30 (*->vm_end - *->vm_start) >> PAGE_SHIFT operation is implemented as a inline funcion vma_pages() in linux/mm.h, so using it. Signed-off-by: Libin --- drivers/char/mspec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c index e1f60f9..ed0703f 100644 --- a/drivers/char/mspec.c +++ b/drivers/char/mspec.c @@ -168,7 +168,7 @@ mspec_close(struct vm_area_struct *vma) if (!atomic_dec_and_test(&vdata->refcnt)) return; - last_index = (vdata->vm_end - vdata->vm_start) >> PAGE_SHIFT; + last_index = vma_pages(vdata); for (index = 0; index < last_index; index++) { if (vdata->maddr[index] == 0) continue; -- 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/