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

[Yinghai Lu]

On Tue, Jan 8, 2013 at 5:07 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
> On Tue, Jan 8, 2013 at 4:58 PM, Eric W. Biederman <ebiederm@xxxxxxxxxxxx> wrote:
>
>>
>> So instead we need to say?
>>
>> +       if (no_iotlb_memory)
>> +               panic("Cannot allocate SWIOTLB buffer");
>> +
>>
>> Which is just making the panic a little later than it used to be and
>> seems completely reasonable.
>
> yes, looks some driver just use map_single without checking results.

update one.

later could have another patch to shrink size...

Attachment: swiotlb.patch
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