linux-kernel - Re: [PATCH RFC/RFT 2/5] dma-remap: Run alloc

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Date:   Tue, 26 Mar 2019 15:53:22 -0700
From:   Nicolin Chen <nicoleotsuka@...il.com>
To:     hch@....de, robin.murphy@....com
Cc:     vdumpa@...dia.com, linux@...linux.org.uk, catalin.marinas@....com,
        will.deacon@....com, joro@...tes.org, m.szyprowski@...sung.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        iommu@...ts.linux-foundation.org, tony@...mide.com
Subject: Re: [PATCH RFC/RFT 2/5] dma-remap: Run alloc_pages() on failure

On Tue, Mar 26, 2019 at 03:49:56PM -0700, Nicolin Chen wrote:
> @@ -116,7 +116,7 @@ int __init dma_atomic_pool_init(gfp_t gfp, pgprot_t prot)
>  	if (dev_get_cma_area(NULL))
>  		page = dma_alloc_from_contiguous(NULL, nr_pages,
>  						 pool_size_order, false);
> -	else
> +	if (!page)
>  		page = alloc_pages(gfp, pool_size_order);

Just realized a missing change in this patch, will send v2.
Please ignore this version.