Messages in this thread | | | Date | Mon, 11 Oct 2021 07:42:28 +0100 | From | Christoph Hellwig <> | Subject | Re: [PATCH] scsi: ibmvscsi_tgt: Use dma_alloc_coherent() instead of get_zeroed_page/dma_map_single() |
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On Mon, Oct 11, 2021 at 12:00:53AM +0800, Cai Huoqing wrote: > Replacing get_zeroed_page/free_page/dma_map_single/dma_unmap_single() > with dma_alloc_coherent/dma_free_coherent() helps to reduce > code size, and simplify the code, and coherent DMA will not > clear the cache every time.
This explanation does not make any sense whatsoever. Please explain why it would an show numbers.
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