From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx116.postini.com [74.125.245.116]) by kanga.kvack.org (Postfix) with SMTP id 547886B0006 for ; Mon, 15 Apr 2013 08:51:54 -0400 (EDT) From: Libin Subject: [PATCH 5/6] drm: use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT Date: Mon, 15 Apr 2013 20:48:57 +0800 Message-ID: <1366030138-71292-5-git-send-email-huawei.libin@huawei.com> 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 Sender: owner-linux-mm@kvack.org List-ID: 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 , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-pci@vger.kernel.org, linux-mm@kvack.org, guohanjun@huawei.com, wangyijing@huawei.com (*->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/gpu/drm/ttm/ttm_bo_vm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c index 74705f3..3df9f16 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c @@ -147,7 +147,7 @@ static int ttm_bo_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) page_offset = ((address - vma->vm_start) >> PAGE_SHIFT) + bo->vm_node->start - vma->vm_pgoff; - page_last = ((vma->vm_end - vma->vm_start) >> PAGE_SHIFT) + + page_last = vma_pages(vma) + bo->vm_node->start - vma->vm_pgoff; if (unlikely(page_offset >= bo->num_pages)) { @@ -258,7 +258,7 @@ int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma, read_lock(&bdev->vm_lock); bo = ttm_bo_vm_lookup_rb(bdev, vma->vm_pgoff, - (vma->vm_end - vma->vm_start) >> PAGE_SHIFT); + vma_pages(vma)); if (likely(bo != NULL) && !kref_get_unless_zero(&bo->kref)) bo = NULL; read_unlock(&bdev->vm_lock); -- 1.8.2.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org