From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753628Ab3JBO3K (ORCPT ); Wed, 2 Oct 2013 10:29:10 -0400 Received: from cantor2.suse.de ([195.135.220.15]:48981 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752928Ab3JBO25 (ORCPT ); Wed, 2 Oct 2013 10:28:57 -0400 From: Jan Kara To: LKML Cc: linux-mm@kvack.org, Jan Kara , Laurent Pinchart , linux-media@vger.kernel.org Subject: [PATCH 05/26] omap3isp: Make isp_video_buffer_prepare_user() use get_user_pages_fast() Date: Wed, 2 Oct 2013 16:27:46 +0200 Message-Id: <1380724087-13927-6-git-send-email-jack@suse.cz> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1380724087-13927-1-git-send-email-jack@suse.cz> References: <1380724087-13927-1-git-send-email-jack@suse.cz> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org CC: Laurent Pinchart CC: linux-media@vger.kernel.org Signed-off-by: Jan Kara --- drivers/media/platform/omap3isp/ispqueue.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/media/platform/omap3isp/ispqueue.c b/drivers/media/platform/omap3isp/ispqueue.c index e15f01342058..bed380395e6c 100644 --- a/drivers/media/platform/omap3isp/ispqueue.c +++ b/drivers/media/platform/omap3isp/ispqueue.c @@ -331,13 +331,9 @@ static int isp_video_buffer_prepare_user(struct isp_video_buffer *buf) if (buf->pages == NULL) return -ENOMEM; - down_read(¤t->mm->mmap_sem); - ret = get_user_pages(current, current->mm, data & PAGE_MASK, - buf->npages, - buf->vbuf.type == V4L2_BUF_TYPE_VIDEO_CAPTURE, 0, - buf->pages, NULL); - up_read(¤t->mm->mmap_sem); - + ret = get_user_pages_fast(data & PAGE_MASK, buf->npages, + buf->vbuf.type == V4L2_BUF_TYPE_VIDEO_CAPTURE, + buf->pages); if (ret != buf->npages) { buf->npages = ret < 0 ? 0 : ret; isp_video_buffer_cleanup(buf); -- 1.8.1.4