From patchwork Wed Oct 2 14:27:46 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kara X-Patchwork-Id: 20284 X-Patchwork-Delegate: laurent.pinchart@ideasonboard.com Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.72) (envelope-from ) id 1VRNVI-0007u0-5g; Wed, 02 Oct 2013 16:34:16 +0200 X-tubIT-Incoming-IP: 209.132.180.67 Received: from vger.kernel.org ([209.132.180.67]) by mail.tu-berlin.de (exim-4.72/mailfrontend-5) with esmtp id 1VRNVG-0005zg-7K; Wed, 02 Oct 2013 16:34:16 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753256Ab3JBO27 (ORCPT + 1 other); Wed, 2 Oct 2013 10:28:59 -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 Received: from relay1.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id D07C2A52D7; Wed, 2 Oct 2013 16:28:56 +0200 (CEST) Received: by quack.suse.cz (Postfix, from userid 1000) id E117C80EC0; Wed, 2 Oct 2013 16:28:54 +0200 (CEST) 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-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-PMX-Version: 6.0.0.2142326, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2013.10.2.142415 X-PMX-Spam: Gauge=IIIIIIII, Probability=8%, Report=' MULTIPLE_RCPTS 0.1, HTML_00_01 0.05, HTML_00_10 0.05, BODYTEXTP_SIZE_3000_LESS 0, BODY_SIZE_1300_1399 0, BODY_SIZE_2000_LESS 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, URI_ENDS_IN_HTML 0, __ANY_URI 0, __CP_URI_IN_BODY 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HAS_X_MAILING_LIST 0, __IN_REP_TO 0, __MIME_TEXT_ONLY 0, __MULTIPLE_RCPTS_CC_X2 0, __SANE_MSGID 0, __TO_MALFORMED_2 0, __URI_NO_WWW 0, __URI_NS ' CC: Laurent Pinchart CC: linux-media@vger.kernel.org Signed-off-by: Jan Kara Acked-by: Laurent Pinchart --- 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);