Re: Freezeable workqueues [Was: 2.6.22-rc1: Broken suspend on SMP with tifm]

[Alex Dubov]

> 
> > > 	- Do we need freezeable workqueues ?
> > 
> > Well, we have at least one case in which they appear to be useful.
> 

I need freezeable wq exactly for the fact that they are synchronized with suspend/resume. My
workitem may do device_register/unregister and it can (and will be) scheduled from irq handler
during resume. As far as I understand, before freezeable wqs, kthreads were the only way to
achieve this behavior, which is less convenient.




 
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