Messages in this thread |  | | Date | Sat, 19 May 2001 12:39:18 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: Getting FS access events |
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On Tue, 15 May 2001, Pavel Machek wrote: > > resume from disk is actually pretty hard to do in way it is readed linearily. > > While playing with swsusp patches (== suspend to disk) I found out that > it was slow. It needs to do atomic snapshot, and only reasonable way to > do that is free half of RAM, cli() and copy.
Note that "resume from disk" does _not_ have to necessarily resume kernel data structures. It is enough if it just resumes the caches etc.
Don't get _too_ hung up about the power-management kind of "invisible suspend/resume" sequence where you resume the whole kernel state.
Linus
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