From: Lucas Stach <l.stach@pengutronix.de>
To: Vinod Koul <vkoul@kernel.org>
Cc: dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org,
Robin Gong <yibin.gong@nxp.com>,
linux-imx@nxp.com, kernel@pengutronix.de,
patchwork-lst@pengutronix.de
Subject: [PATCH v2 4/4] dmaengine: imx-sdma: use GFP_NOWAIT for dma allocations
Date: Fri, 14 Sep 2018 19:06:15 +0200 [thread overview]
Message-ID: <20180914170615.12659-4-l.stach@pengutronix.de> (raw)
In-Reply-To: <20180914170615.12659-1-l.stach@pengutronix.de>
DMA buffer descriptors aren't allocated from atomic context, so they
can use the less heavyweigth GFP_NOWAIT.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
drivers/dma/imx-sdma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index da41e8fbf151..ac189d3d985c 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1213,7 +1213,7 @@ static int sdma_alloc_bd(struct sdma_desc *desc)
int ret = 0;
desc->bd = dma_zalloc_coherent(NULL, bd_size, &desc->bd_phys,
- GFP_ATOMIC);
+ GFP_NOWAIT);
if (!desc->bd) {
ret = -ENOMEM;
goto out;
--
2.19.0
prev parent reply other threads:[~2018-09-14 17:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-14 17:06 [PATCH v2 1/4] Revert "dmaengine: imx-sdma: Use GFP_NOWAIT for dma allocations" Lucas Stach
2018-09-14 17:06 ` [PATCH v2 2/4] Revert "dmaengine: imx-sdma: alloclate bd memory from dma pool" Lucas Stach
2018-09-14 17:06 ` [PATCH v2 3/4] dmaengine: imx-sdma: implement channel termination via worker Lucas Stach
2018-09-17 7:51 ` Robin Gong
2018-09-17 11:03 ` Lucas Stach
2018-09-19 9:20 ` Robin Gong
2018-09-14 17:06 ` Lucas Stach [this message]
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