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Subject: Re: preferred kernel upcall method to master nfsd
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On 11/22/10 15:28, John Baldwin wrote:
> On Monday, November 22, 2010 8:19:32 am Rick Macklem wrote:
>> Hi,
>>
>> The experimental NFSv4 server in the kernel needs to tell the master nfsd when
>> to make a backup copy of the stable restart file. I know how to do this using a
>> signal, but is there a better/preferred way under FreeBSD-current?
>
> A signal sounds like the simplest approach to me.

Signals work for processes inside the kernel? How? The scheduler 
preempts them and does magic when deciding where to continue running them?