Re: [linux-pm] pm loss development

[Pavel Machek]

Hi!

> > > What do you mean by safe state?
> > >
> > I need to get more details on this but I assume its a state where the
> > meta data of the file system is committed to the emmc before lights go
> > off such that when power is reapplied that the damage isn't too big. 
> 
> I don't think you can guarantee that the metadata won't be damaged
> without notifying the filesystem of the event (and making it react
> appropriately).

Journalling filesystem should survive power loss at random time, as
long as block device behaves like a disk (i.e. writes whole sectors).

And that can be guaranteed at driver level...

-- 
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