Re: [linux-pm] [suspend/resume] Re: userspace notification from module

[Anders Eriksson]

rjw@xxxxxxx said:
>> > I don't see a problem with this in principle, although I don't think signals
>> > are very suitable for this particular purpose, because you need two-way
>> > communication between the power manager and the processes it's going to
>> > notify (because it has to wait for the processes to finish their preparations
>> > and to tell it that they are ready). 

Wouldn't there need to be dependecy tracking for the userspace processes? A 
process couldn't signal "done" until it know there's no more work to do, which 
requires all other processes to finish up first.

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