From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754427Ab3JBOe1 (ORCPT ); Wed, 2 Oct 2013 10:34:27 -0400 Received: from cantor2.suse.de ([195.135.220.15]:48997 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753151Ab3JBO26 (ORCPT ); Wed, 2 Oct 2013 10:28:58 -0400 From: Jan Kara To: LKML Cc: linux-mm@kvack.org, Jan Kara , Greg Kroah-Hartman , Mark Allyn , Jayant Mangalampalli Subject: [PATCH 11/26] sep: Convert sep_lock_user_pages() to get_user_pages_fast() Date: Wed, 2 Oct 2013 16:27:52 +0200 Message-Id: <1380724087-13927-12-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: Greg Kroah-Hartman CC: Mark Allyn CC: Jayant Mangalampalli Signed-off-by: Jan Kara --- drivers/staging/sep/sep_main.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/staging/sep/sep_main.c b/drivers/staging/sep/sep_main.c index 6a98a208bbf2..11f5b2117457 100644 --- a/drivers/staging/sep/sep_main.c +++ b/drivers/staging/sep/sep_main.c @@ -1263,13 +1263,8 @@ static int sep_lock_user_pages(struct sep_device *sep, } /* Convert the application virtual address into a set of physical */ - down_read(¤t->mm->mmap_sem); - result = get_user_pages(current, current->mm, app_virt_addr, - num_pages, - ((in_out_flag == SEP_DRIVER_IN_FLAG) ? 0 : 1), - 0, page_array, NULL); - - up_read(¤t->mm->mmap_sem); + result = get_user_pages_fast(app_virt_addr, num_pages, + ((in_out_flag == SEP_DRIVER_IN_FLAG) ? 0 : 1), page_array); /* Check the number of pages locked - if not all then exit with error */ if (result != num_pages) { -- 1.8.1.4