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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] linux: {start, stop}_hz_timer() not really affecting periodic timer?
>>> Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> 16.01.08 17:46 >>> >On 16/1/08 16:36, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote: > >>> If the time is in the past then the singleshot timer will fire immediately. >>> So you'll take a slower path than necessary, but the code as-is will work >>> fine. >> >> Immediately would mean to me that it would fire on the return path >> from VCPUOP_set_singleshot_timer, so HYPERVISOR_block() would >> not (necessarily) find any pending events and hence block when it >> shouldn't. Or am I missing some magic by which this is being avoided? > >The function should only be called with interrupts disabled. That goes back to what I stated first - there's nothing really requiring this, it just happens to be that way at present. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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