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OpenCloudOS-Kernel
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block: Use dma_zalloc_coherent 

Use the zeroing function instead of dma_alloc_coherent & memset(,0,)

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Joe Perches 2014-06-15 13:37:33 -07:00 committed by Jens Axboe
parent e167dfb53c
commit 4d51abf9bc
1 changed files with 2 additions and 3 deletions
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5
drivers/block/nvme-core.c
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@ -1275,11 +1275,10 @@ static struct nvme_queue *nvme_alloc_queue(struct nvme_dev *dev, int qid,
if (!nvmeq)
return NULL;
nvmeq->cqes = dma_alloc_coherent(dmadev, CQ_SIZE(depth),
&nvmeq->cq_dma_addr, GFP_KERNEL);
nvmeq->cqes = dma_zalloc_coherent(dmadev, CQ_SIZE(depth),
&nvmeq->cq_dma_addr, GFP_KERNEL);
if (!nvmeq->cqes)
goto free_nvmeq;
memset((void *)nvmeq->cqes, 0, CQ_SIZE(depth));
nvmeq->sq_cmds = dma_alloc_coherent(dmadev, SQ_SIZE(depth),
&nvmeq->sq_dma_addr, GFP_KERNEL);