Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933342AbbKMQkv (ORCPT ); Fri, 13 Nov 2015 11:40:51 -0500 Received: from hqemgate15.nvidia.com ([216.228.121.64]:15471 "EHLO hqemgate15.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933266AbbKMQkE (ORCPT ); Fri, 13 Nov 2015 11:40:04 -0500 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Fri, 13 Nov 2015 08:28:47 -0800 From: Jon Hunter To: Laxman Dewangan , Vinod Koul , Stephen Warren , Thierry Reding , Alexandre Courbot CC: , , , , Jon Hunter Subject: [PATCH V3 5/6] dmaengine: tegra-apb: Update driver to use GFP_NOWAIT Date: Fri, 13 Nov 2015 16:39:42 +0000 Message-ID: <1447432783-7466-6-git-send-email-jonathanh@nvidia.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1447432783-7466-1-git-send-email-jonathanh@nvidia.com> References: <1447432783-7466-1-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 Content-Length: 1538 Lines: 41 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 d4cabd6931e5..754c1f54d4fe 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 -- 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/