Re: [PATCH v7u1 26/31] x86: Don't enable swiotlb if there is notenough ram for it

[Yinghai Lu]

On Mon, Jan 7, 2013 at 7:50 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
> On Mon, Jan 7, 2013 at 7:13 PM, Eric W. Biederman <ebiederm@xxxxxxxxxxxx> wrote:
>> I meant we should detect failure to allocate bounce buffers in in
>> swiotlb_init() instead of panicing.
>>
>> I meant swiotlb_map_single() should either panic or simply fail.
>>
>> If I have read lib/swiotlb.c correctly the only place we allocate a
>> bounce buffer is in swiotlb_map_single.  If there are more places we can
>> allocate bounce buffers those need to be handled as well.
>
> ok, will give it a try.

please check if you are ok with attached.

looks like it need more change of lines.

Thanks

Yinghai

Attachment: alloc_low_page_nopanic.patch
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Attachment: swiotlb.patch
Description: Binary data