Messages in this thread | | | Date | Wed, 25 Apr 2007 18:43:45 -0400 | From | Chuck Ebbert <> | Subject | Re: suspend2 merge (was Re: [Suspend2-devel] Re: CFS and suspend2: hang in atomic copy) |
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Linus Torvalds wrote: > Tell me, what does "suspend" do, and what does "freeze" (snapshot) do? > > And name *one* thing that have in common. > > I'll tell you: Nada. Zero. Zilch. Nothing. > > "Freeze" for a disk is a total no-op. There is no DMA, there is no > nothing. In contrast, "suspend" for a disk is a totally valid operation. >
Freeze is a subset of suspend, isn't it? (It might be an empty subset in some cases.)
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