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From: Robin Gong <yibin.gong@nxp.com>
To: "vkoul@kernel.org" <vkoul@kernel.org>,
	"l.stach@pengutronix.de" <l.stach@pengutronix.de>
Cc: "dmaengine@vger.kernel.org" <dmaengine@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	dl-linux-imx <linux-imx@nxp.com>
Subject: [v3,4/4] dmaengine: imx-sdma: use GFP_NOWAIT for dma descriptor allocations
Date: Tue, 6 Nov 2018 03:40:37 +0000	[thread overview]
Message-ID: <1541504525-25720-5-git-send-email-yibin.gong@nxp.com> (raw)

From: Lucas Stach <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>
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
---
 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 03d46f1..cb1b44d 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1214,7 +1214,7 @@ 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;

WARNING: multiple messages have this Message-ID (diff)
From: Robin Gong <yibin.gong@nxp.com>
To: "vkoul@kernel.org" <vkoul@kernel.org>,
	"l.stach@pengutronix.de" <l.stach@pengutronix.de>
Cc: "dmaengine@vger.kernel.org" <dmaengine@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	dl-linux-imx <linux-imx@nxp.com>
Subject: [PATCH v3 4/4] dmaengine: imx-sdma: use GFP_NOWAIT for dma descriptor allocations
Date: Tue, 6 Nov 2018 03:40:37 +0000	[thread overview]
Message-ID: <1541504525-25720-5-git-send-email-yibin.gong@nxp.com> (raw)
In-Reply-To: <1541504525-25720-1-git-send-email-yibin.gong@nxp.com>

From: Lucas Stach <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>
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
---
 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 03d46f1..cb1b44d 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1214,7 +1214,7 @@ 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;
-- 
2.7.4


             reply	other threads:[~2018-11-06  3:40 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-06  3:40 Robin Gong [this message]
2018-11-06  3:40 ` [PATCH v3 4/4] dmaengine: imx-sdma: use GFP_NOWAIT for dma descriptor allocations Robin Gong
  -- strict thread matches above, loose matches on Subject: below --
2018-11-06  3:40 [v3,3/4] dmaengine: imx-sdma: implement channel termination via worker Robin Gong
2018-11-06  3:40 ` [PATCH v3 3/4] " Robin Gong
2018-11-06  3:40 [v3,2/4] Revert "dmaengine: imx-sdma: alloclate bd memory from dma pool" Robin Gong
2018-11-06  3:40 ` [PATCH v3 2/4] " Robin Gong
2018-11-06  3:40 [v3,1/4] Revert "dmaengine: imx-sdma: Use GFP_NOWAIT for dma allocations" Robin Gong
2018-11-06  3:40 ` [PATCH v3 1/4] " Robin Gong
2018-11-06  3:40 [PATCH v3 0/4] Correct dma pool for imx-sdma Robin Gong
2018-11-12 15:56 ` Lucas Stach
2018-11-20  9:08   ` Robin Gong
2018-12-04  8:11     ` Robin Gong
2018-12-05  8:23 ` Vinod Koul

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