Re: [PATCH 0/2] eventfd: new EFD_STATE flag

[Michael S. Tsirkin]

On Thu, Aug 27, 2009 at 07:13:32AM +0300, Avi Kivity wrote:
> On 08/27/2009 02:30 AM, Davide Libenzi wrote:
>> On Wed, 26 Aug 2009, Davide Libenzi wrote:
>>
>>    
>>>> I see no kernel equivalent to read(), but that's easily done.
>>>>        
>>> Adding an in-kernel read based on "ctx", that is no problem at all.
>>>      
>> Something like the untested below.
>> I had thought you said the eventfd readers where in userspace, but I might
>> have misunderstood you.
>>    
>
> No, they're all over the place.

Further, with Davide's proposal you must be a reader to signal events.

> -- 
> I have a truly marvellous patch that fixes the bug which this
> signature is too narrow to contain.
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