From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753380Ab3JBO3B (ORCPT ); Wed, 2 Oct 2013 10:29:01 -0400 Received: from cantor2.suse.de ([195.135.220.15]:48973 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752907Ab3JBO25 (ORCPT ); Wed, 2 Oct 2013 10:28:57 -0400 From: Jan Kara To: LKML Cc: linux-mm@kvack.org, Jan Kara , David Airlie , dri-devel@lists.freedesktop.org Subject: [PATCH 04/26] drm: Convert via driver to use get_user_pages_fast() Date: Wed, 2 Oct 2013 16:27:45 +0200 Message-Id: <1380724087-13927-5-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: David Airlie CC: dri-devel@lists.freedesktop.org Signed-off-by: Jan Kara --- drivers/gpu/drm/via/via_dmablit.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/via/via_dmablit.c b/drivers/gpu/drm/via/via_dmablit.c index 8b0f25904e6d..7e3766667d78 100644 --- a/drivers/gpu/drm/via/via_dmablit.c +++ b/drivers/gpu/drm/via/via_dmablit.c @@ -238,14 +238,10 @@ via_lock_all_dma_pages(drm_via_sg_info_t *vsg, drm_via_dmablit_t *xfer) vsg->pages = vzalloc(sizeof(struct page *) * vsg->num_pages); if (NULL == vsg->pages) return -ENOMEM; - down_read(¤t->mm->mmap_sem); - ret = get_user_pages(current, current->mm, - (unsigned long)xfer->mem_addr, - vsg->num_pages, - (vsg->direction == DMA_FROM_DEVICE), - 0, vsg->pages, NULL); - - up_read(¤t->mm->mmap_sem); + ret = get_user_pages_fast((unsigned long)xfer->mem_addr, + vsg->num_pages, + (vsg->direction == DMA_FROM_DEVICE), + vsg->pages); if (ret != vsg->num_pages) { if (ret < 0) return ret; -- 1.8.1.4