Commit 2b6b535d authored Oct 11, 2016 by Mauricio Faria de Oliveira Committed by Linus Torvalds Oct 11, 2016

nvme: use the DMA_ATTR_NO_WARN attribute

Use the DMA_ATTR_NO_WARN attribute for the dma_map_sg() call of the nvme
driver that returns BLK_MQ_RQ_QUEUE_BUSY (not for BLK_MQ_RQ_QUEUE_ERROR).

Link: http://lkml.kernel.org/r/1470092390-25451-4-git-send-email-mauricfo@linux.vnet.ibm.com


Signed-off-by: Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Jens Axboe <axboe@fb.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent af8a2498

drivers/nvme/host/pci.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -515,7 +515,8 @@ static int nvme_map_data(struct nvme_dev dev, struct request req,
		goto out;

		ret = BLK_MQ_RQ_QUEUE_BUSY;
		if (!dma_map_sg(dev->dev, iod->sg, iod->nents, dma_dir))
		if (!dma_map_sg_attrs(dev->dev, iod->sg, iod->nents, dma_dir,
		DMA_ATTR_NO_WARN))
		goto out;

		if (!nvme_setup_prps(dev, req, size))

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