From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754091AbbJPI0Z (ORCPT ); Fri, 16 Oct 2015 04:26:25 -0400 Received: from hqemgate15.nvidia.com ([216.228.121.64]:4710 "EHLO hqemgate15.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753932AbbJPI0S (ORCPT ); Fri, 16 Oct 2015 04:26:18 -0400 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Fri, 16 Oct 2015 01:24:58 -0700 From: Jon Hunter To: Laxman Dewangan , Vinod Koul , Stephen Warren , Thierry Reding , Alexandre Courbot CC: , , , Jon Hunter Subject: [PATCH 5/6] dmaengine: tegra-apb: Update driver to use GFP_NOWAIT Date: Fri, 16 Oct 2015 09:25:56 +0100 Message-ID: <1444983957-18691-6-git-send-email-jonathanh@nvidia.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1444983957-18691-1-git-send-email-jonathanh@nvidia.com> References: <1444983957-18691-1-git-send-email-jonathanh@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The tegra20-apb-dma driver currently uses the flag GFP_ATOMIC when allocating memory for structures used in conjunction with the DMA descriptors. It is preferred that dmaengine drivers use GFP_NOWAIT instead and so the emergency memory pool will not be used by these drivers. Signed-off-by: Jon Hunter --- drivers/dma/tegra20-apb-dma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c index 35723703d4b9..2bfab8d28b53 100644 --- a/drivers/dma/tegra20-apb-dma.c +++ b/drivers/dma/tegra20-apb-dma.c @@ -296,7 +296,7 @@ static struct tegra_dma_desc *tegra_dma_desc_get( spin_unlock_irqrestore(&tdc->lock, flags); /* Allocate DMA desc */ - dma_desc = kzalloc(sizeof(*dma_desc), GFP_ATOMIC); + dma_desc = kzalloc(sizeof(*dma_desc), GFP_NOWAIT); if (!dma_desc) { dev_err(tdc2dev(tdc), "dma_desc alloc failed\n"); return NULL; @@ -336,7 +336,7 @@ static struct tegra_dma_sg_req *tegra_dma_sg_req_get( } spin_unlock_irqrestore(&tdc->lock, flags); - sg_req = kzalloc(sizeof(struct tegra_dma_sg_req), GFP_ATOMIC); + sg_req = kzalloc(sizeof(struct tegra_dma_sg_req), GFP_NOWAIT); if (!sg_req) dev_err(tdc2dev(tdc), "sg_req alloc failed\n"); return sg_req; -- 2.1.4