Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755847AbaGIMao (ORCPT ); Wed, 9 Jul 2014 08:30:44 -0400 Received: from adelie.canonical.com ([91.189.90.139]:45074 "EHLO adelie.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755152AbaGIMak (ORCPT ); Wed, 9 Jul 2014 08:30:40 -0400 Subject: [PATCH 16/17] drm/vmwgfx: use rcu in vmw_user_dmabuf_synccpu_grab To: airlied@linux.ie From: Maarten Lankhorst Cc: thellstrom@vmware.com, nouveau@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, bskeggs@redhat.com, alexander.deucher@amd.com, christian.koenig@amd.com Date: Wed, 09 Jul 2014 14:30:34 +0200 Message-ID: <20140709123034.11354.50674.stgit@patser> In-Reply-To: <20140709093124.11354.3774.stgit@patser> References: <20140709093124.11354.3774.stgit@patser> User-Agent: StGit/0.15 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Maarten Lankhorst --- drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index 20a1a866ceeb..79e950df3018 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -567,13 +567,16 @@ static int vmw_user_dmabuf_synccpu_grab(struct vmw_user_dma_buffer *user_bo, int ret; if (flags & drm_vmw_synccpu_allow_cs) { - ret = ttm_bo_reserve(bo, true, !!(flags & drm_vmw_synccpu_dontblock), false, 0); - if (!ret) { - ret = ttm_bo_wait(bo, false, true, - !!(flags & drm_vmw_synccpu_dontblock)); - ttm_bo_unreserve(bo); - } - return ret; + long lret; + if (flags & drm_vmw_synccpu_dontblock) + return reservation_object_test_signaled_rcu(bo->resv, true) ? 0 : -EBUSY; + + lret = reservation_object_wait_timeout_rcu(bo->resv, true, true, MAX_SCHEDULE_TIMEOUT); + if (!lret) + return -EBUSY; + else if (lret < 0) + return lret; + return 0; } ret = ttm_bo_synccpu_write_grab -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/