linux-kernel - Re: [PATCH v2] dma-pool: Fix too large DMA pools on medium systems

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Date:   Sat, 27 Jun 2020 18:13:43 +0200
From:   Marion & Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Christoph Hellwig <hch@....de>, Guenter Roeck <linux@...ck-us.net>
Cc:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Robin Murphy <robin.murphy@....com>,
        David Rientjes <rientjes@...gle.com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] dma-pool: Fix too large DMA pools on medium systems


Le 24/06/2020 à 09:38, Christoph Hellwig a écrit :
> Hi Guenter,
>
> can you try the patch below?  This just converts the huge allocations
> in mptbase to use GFP_KERNEL.  Christophe (added to Cc) actually has
> a scripted conversion for the rest that he hasn't posted yet, so I'll
> aim for the minimal version here.

Hi,

I'm sorry, but I will not send pci_ --> dma_ conversion for this driver.
I'm a bit puzzled by some choice of GFP_KERNEL and GFP_ATOMIC that not 
all that obvious to me.

I'll try to send some patches for other easier drivers in the coming weeks.

Best regards,

CJ