[RFC V3 PATCH 6/8] dmaengine: xilinx_dma: Use tasklet_hi_schedule for timing critical usecase

Sarath Babu Naidu Gaddam sarath.babu.naidu.gaddam at amd.com
Mon Sep 19 22:51:17 PDT 2022


From: Radhey Shyam Pandey <radhey.shyam.pandey at xilinx.com>

Schedule tasklet with high priority to ensure that callback processing
is prioritized. It improves throughput for netdev dma clients.

Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey at xilinx.com>
Signed-off-by: Sarath Babu Naidu Gaddam <sarath.babu.naidu.gaddam at amd.com>
---
Changes in V2 and V3:
- None
---
 drivers/dma/xilinx/xilinx_dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index 1488cc6a299a..8126a56980f2 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -1848,7 +1848,7 @@ static irqreturn_t xilinx_mcdma_irq_handler(int irq, void *data)
 		spin_unlock(&chan->lock);
 	}
 
-	tasklet_schedule(&chan->tasklet);
+	tasklet_hi_schedule(&chan->tasklet);
 	return IRQ_HANDLED;
 }
 
-- 
2.25.1




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