linux-kernel - Re: [PATCH 3/4] pci: mm: Add pci_pool

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Message-ID: <20150721193818.GG21967@google.com>
Date:	Tue, 21 Jul 2015 14:38:18 -0500
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	"Sean O. Stalley" <sean.stalley@...el.com>
Cc:	corbet@....net, vinod.koul@...el.com, Julia.Lawall@...6.fr,
	Gilles.Muller@...6.fr, nicolas.palix@...g.fr, mmarek@...e.cz,
	akpm@...ux-foundation.org, bigeasy@...utronix.de,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	dmaengine@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-mm@...ck.org, cocci@...teme.lip6.fr
Subject: Re: [PATCH 3/4] pci: mm: Add pci_pool_zalloc() call

On Wed, Jul 15, 2015 at 02:14:42PM -0700, Sean O. Stalley wrote:
> Add a wrapper function for pci_pool_alloc() to get zeroed memory.
> 
> Signed-off-by: Sean O. Stalley <sean.stalley@...el.com>

If you get details of managing __GFP_ZERO worked out, I'm fine with this
PCI part of it, and you can merge it along with the rest of the series:

Acked-by: Bjorn Helgaas <bhelgaas@...gle.com>

Please capitalize "PCI" in the subject line, like this:

  PCI: mm: Add pci_pool_zalloc() call

> ---
>  include/linux/pci.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/include/linux/pci.h b/include/linux/pci.h
> index 755a2cd..e6ec7d9 100644
> --- a/include/linux/pci.h
> +++ b/include/linux/pci.h
> @@ -1176,6 +1176,8 @@ int pci_set_vga_state(struct pci_dev *pdev, bool decode,
>  		dma_pool_create(name, &pdev->dev, size, align, allocation)
>  #define	pci_pool_destroy(pool) dma_pool_destroy(pool)
>  #define	pci_pool_alloc(pool, flags, handle) dma_pool_alloc(pool, flags, handle)
> +#define	pci_pool_zalloc(pool, flags, handle) \
> +		dma_pool_zalloc(pool, flags, handle)
>  #define	pci_pool_free(pool, vaddr, addr) dma_pool_free(pool, vaddr, addr)
>  
>  enum pci_dma_burst_strategy {
> -- 
> 1.9.1
> 
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