On Thu, Jan 21, 2010 at 07:47:40PM +0200, Avi Kivity wrote: > 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. Yes it blocks if counter is 0. And we don't know it's not 0 unless we read :) catch-22. > -- > Do not meddle in the internals of kernels, for they are subtle and quick to panic. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
