Re: [PATCHv2 1/3] eventfd: allow atomic read and waitqueue remove

[Avi Kivity]

On 01/21/2010 07:32 PM, Michael S. Tsirkin wrote:
> > Can't you read from the file?
> >      
> IMO no, the read could block.
>    

But you're in process context.  An eventfd never blocks.

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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