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[Xen-devel] Re: [PATCH 07/15] [swiotlb] In 'swiotlb_free' check	iommu_sw 
| To: | Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> |  
| Subject: | [Xen-devel] Re: [PATCH 07/15] [swiotlb] In 'swiotlb_free' check	iommu_sw pointer. |  
| From: | Chris Wright <chrisw@xxxxxxxxxxxx> |  
| Date: | Thu, 14 Jan 2010 18:02:40 -0800 |  
| Cc: | chrisw@xxxxxxxxxxxx, jeremy@xxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx,	Ian.Campbell@xxxxxxxxxxxxx, joerg.roedel@xxxxxxx,	fujita.tomonori@xxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx,	dwmw2@xxxxxxxxxxxxx, alex.williamson@xxxxxx |  
| Delivery-date: | Thu, 14 Jan 2010 18:03:25 -0800 |  
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| In-reply-to: | <1263510064-16788-8-git-send-email-konrad.wilk@xxxxxxxxxx> |  
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| References: | <1263510064-16788-1-git-send-email-konrad.wilk@xxxxxxxxxx>	<1263510064-16788-2-git-send-email-konrad.wilk@xxxxxxxxxx>	<1263510064-16788-3-git-send-email-konrad.wilk@xxxxxxxxxx>	<1263510064-16788-4-git-send-email-konrad.wilk@xxxxxxxxxx>	<1263510064-16788-5-git-send-email-konrad.wilk@xxxxxxxxxx>	<1263510064-16788-6-git-send-email-konrad.wilk@xxxxxxxxxx>	<1263510064-16788-7-git-send-email-konrad.wilk@xxxxxxxxxx>	<1263510064-16788-8-git-send-email-konrad.wilk@xxxxxxxxxx> |  
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |  
| User-agent: | Mutt/1.5.19 (2009-01-05) |  
| * Konrad Rzeszutek Wilk (konrad.wilk@xxxxxxxxxx) wrote:
> --- a/lib/swiotlb.c
> +++ b/lib/swiotlb.c
> @@ -364,7 +364,7 @@ cleanup1:
>  
>  void __init swiotlb_free(void)
>  {
> -     if (!iommu_sw->overflow_buffer)
> +     if (!iommu_sw)
>               return;
>  
Sure this is safe for the case where allocation failed?  Wouldn't this
do free_late_bootmem(__pa(0))?
thanks,
-chris
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[Xen-devel] [PATCH 09/15] [swiotlb] Add 'dma_capable' to the	swiotlb_ops structure., (continued)
[Xen-devel] [PATCH 09/15] [swiotlb] Add 'dma_capable' to the	swiotlb_ops structure., Konrad Rzeszutek Wilk
[Xen-devel] [PATCH 10/15] [swiotlb] Replace the [phys,	bus]->virt and virt->[bus, phys] functions with iommu_sw calls., Konrad Rzeszutek Wilk
[Xen-devel] [PATCH 11/15] [swiotlb] Replace late_alloc with	iommu_sw->priv usage., Konrad Rzeszutek Wilk
[Xen-devel] [PATCH 12/15] [swiotlb] Remove un-used static	declerations obsoleted by iommu_sw., Konrad Rzeszutek Wilk
[Xen-devel] [PATCH 13/15] [swiotlb] Make io_tlb_nslabs visible	outside lib/swiotlb.c and rename it., Konrad Rzeszutek Wilk
[Xen-devel] [PATCH 14/15] [swiotlb] Move initialization	(swiotlb_init) and its friends in swiotlb-default.c, Konrad Rzeszutek Wilk
[Xen-devel] [PATCH 15/15] [swiotlb] Take advantage of	iommu_sw->name and add %s to printk's., Konrad Rzeszutek Wilk
[Xen-devel] Re: [PATCH 14/15] [swiotlb] Move initialization	(swiotlb_init) and its friends in swiotlb-default.c, Chris Wright
[Xen-devel] Re: [PATCH 14/15] [swiotlb] Move initialization	(swiotlb_init) and its friends in swiotlb-default.c, Konrad Rzeszutek Wilk
[Xen-devel] Re: [PATCH 14/15] [swiotlb] Move initialization	(swiotlb_init) and its friends in swiotlb-default.c, Chris Wright
[Xen-devel] Re: [PATCH 07/15] [swiotlb] In 'swiotlb_free' check	iommu_sw pointer.,
Chris Wright <=
[Xen-devel] Re: [PATCH 07/15] [swiotlb] In 'swiotlb_free' check	iommu_sw pointer., Konrad Rzeszutek Wilk
[Xen-devel] Re: [PATCH 07/15] [swiotlb] In 'swiotlb_free' check	iommu_sw pointer., Chris Wright
[Xen-devel] Re: [PATCH 06/15] [swiotlb] In 'swiotlb_init' take	advantage of the default swiotlb_engine support., Chris Wright
[Xen-devel] Re: [PATCH 06/15] [swiotlb] In 'swiotlb_init' take	advantage of the default swiotlb_engine support., Konrad Rzeszutek Wilk
[Xen-devel] Re: [PATCH 05/15] [swiotlb] Respect the io_tlb_nslabs	argument value., Chris Wright
[Xen-devel] Re: [PATCH 04/15] [swiotlb] Search and replace	s/io_tlb/iommu_sw->/, Chris Wright
[Xen-devel] Re: [PATCH 04/15] [swiotlb] Search and replace	s/io_tlb/iommu_sw->/, Konrad Rzeszutek Wilk
[Xen-devel] Re: [PATCH 03/15] [swiotlb] Add swiotlb_register_engine	function., Chris Wright
[Xen-devel] Re: [PATCH 03/15] [swiotlb] Add swiotlb_register_engine	function., Konrad Rzeszutek Wilk
[Xen-devel] Re: [PATCH 02/15] [swiotlb] Add swiotlb_engine	structure for tracking multiple software IO TLBs., Chris Wright
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